| 1 | /* Support for Intel 960 COFF and Motorola 88k BCS COFF (and maybe others) |
| 2 | Copyright (C) 1990-1991 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 | /*doc* |
| 22 | @section coff backends |
| 23 | |
| 24 | BFD supports a number of different flavours of coff format. The major |
| 25 | difference between formats are the sizes and alignments of fields in |
| 26 | structures on disk, and the occasional extra field. |
| 27 | |
| 28 | Coff in all its varieties is implimented with a few common files and a |
| 29 | number of implementation specific files. For example, The 88k bcs coff |
| 30 | format is implemented in the file @code{m88k-bcs.c}. This file |
| 31 | @code{#include}s @code{m88k-bcs.h} which defines the external |
| 32 | structure of the coff format for the 88k, and @code{internalcoff.h} |
| 33 | which defines the internal structure. @code{m88k-bcs.c} also defines |
| 34 | the relocations used by the 88k format @xref{Relocations}. Then the |
| 35 | major portion of coff code is included (@code{coffcode.h}) which |
| 36 | defines the methods used to act upon the types defined in |
| 37 | @code{m88k-bcs.h} and @code{internalcoff.h}. |
| 38 | |
| 39 | The Intel i960 processor version of coff is implemented in |
| 40 | @code{icoff.c}. This file has the same structure as |
| 41 | @code{m88k-bcs.c}, except that it includes @code{intel-coff.h} rather |
| 42 | than @code{m88k-bcs.h}. |
| 43 | |
| 44 | @subsection Porting To A New Version of Coff |
| 45 | |
| 46 | The recommended method is to select from the existing implimentations |
| 47 | the version of coff which is most like the one you want to use, for |
| 48 | our purposes, we'll say that i386 coff is the one you select, and that |
| 49 | your coff flavour is called foo. Copy the @code{i386coff.c} to @code{foocoff.c}, |
| 50 | copy @code{../include/i386coff.h} to @code{../include/foocoff.h} and |
| 51 | add the lines to @code{targets.c} and @code{Makefile.in} so that your |
| 52 | new back end is used. |
| 53 | |
| 54 | Alter the shapes of the structures in @code{../include/foocoff.h} so |
| 55 | that they match what you need. You will probably also have to add |
| 56 | @code{#ifdef}s to the code in @code{internalcoff.h} and |
| 57 | @code{coffcode.h} if your version of coff is too wild. |
| 58 | |
| 59 | You can verify that your new bfd backend works quite simply by |
| 60 | building @code{objdump} from the @code{binutils} directory, and |
| 61 | making sure that its version of what's going on at your host systems |
| 62 | idea (assuming it has the pretty standard coff dump utility (usually |
| 63 | called @code{att-dump} or just @code{dump})) are the same. |
| 64 | |
| 65 | Then clean up your code, and send what you've done to Cygnus. Then your stuff |
| 66 | will be in the next release, and you won't have to keep integrating |
| 67 | it. |
| 68 | |
| 69 | @subsection How The Coff Backend Works |
| 70 | |
| 71 | @subsubsection Bit Twiddling |
| 72 | Each flavour of coff supported in bfd has its own header file |
| 73 | descibing the external layout of the structures. There is also an |
| 74 | internal description of the coff layout (in @code{internalcoff.h}) |
| 75 | file (@code{}). A major function of the coff backend is swapping the |
| 76 | bytes and twiddling the bits to translate the external form of the |
| 77 | structures into the normal internal form. This is all performed in the |
| 78 | @code{bfd_swap}_@i{thing}_@i{direction} routines. Some elements are |
| 79 | different sizes between different versions of coff, it is the duty of |
| 80 | the coff version specific include file to override the definitions of |
| 81 | various packing routines in @code{coffcode.h}. Eg the size of line |
| 82 | number entry in coff is sometimes 16 bits, and sometimes 32 bits. |
| 83 | @code{#define}ing @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will |
| 84 | select the correct one. No doubt, some day someone will find a version |
| 85 | of coff which has a varying field size not catered for at the moment. |
| 86 | To port bfd, that person will have to add more @code{#defines}. |
| 87 | |
| 88 | Three of the bit twiddling routines are exported to @code{gdb}; |
| 89 | @code{coff_swap_aux_in}, @code{coff_swap_sym_in} and |
| 90 | @code{coff_swap_linno_in}. @code{GDB} reads the symbol table on its |
| 91 | own, but uses bfd to fix things up. |
| 92 | |
| 93 | @subsubsection Symbol Reading |
| 94 | The simple canonical form for symbols used by bfd is not rich enough |
| 95 | to keep all the information available in a coff symbol table. The back |
| 96 | end gets around this by keeping the original symbol table around, |
| 97 | "behind the sceens". |
| 98 | |
| 99 | When a symbol table is requested (through a call to |
| 100 | @code{bfd_canonicalize_symtab}, a request gets through to |
| 101 | @code{get_normalized_symtab}. This reads the symbol table from the |
| 102 | coff file and swaps all the structures inside into the internal form. |
| 103 | It also fixes up all the pointers in the table (represented in the file |
| 104 | by offsets from the first symbol in the table) into physical pointers |
| 105 | to elements in the new internal table. This involves some work since |
| 106 | the meanings of fields changes depending upon context; a field that is a |
| 107 | pointer to another structure in the symbol table at one moment may be |
| 108 | the size in bytes of a structure in the next. |
| 109 | |
| 110 | Another pass is made over the table. All symbols which mark file names |
| 111 | (@code{C_FILE} symbols) are modified so that the internal string |
| 112 | points to the value in the auxent (the real filename) rather than the |
| 113 | normal text associated with the symbol (@code{".file"}). |
| 114 | |
| 115 | At this time the symbol names are moved around. Coff stores all |
| 116 | symbols less than nine characters long physically within the symbol |
| 117 | table, longer strings are kept at the end of the file in the string |
| 118 | table. This pass moves all strings into memory, and replaces them with |
| 119 | pointers to the strings. |
| 120 | |
| 121 | The symbol table is massaged once again, this time to create the |
| 122 | canonical table used by the bfd application. Each symbol is inspected |
| 123 | in turn, and a decision made (using the @code{sclass} field) about the |
| 124 | various flags to set in the @code{asymbol} @xref{Symbols}. The |
| 125 | generated canonical table shares strings with the hidden internal |
| 126 | symbol table. |
| 127 | |
| 128 | Any linenumbers are read from the coff file too, and attatched to the |
| 129 | symbols which own the functions the linenumbers belong to. |
| 130 | |
| 131 | @subsubsection Symbol Writing |
| 132 | Writing a symbol to a coff file which didn't come from a coff file |
| 133 | will lose any debugging information. The @code{asymbol} structure |
| 134 | remembers the bfd from which was born, and on output the back end |
| 135 | makes sure that the same destination target as source target is |
| 136 | present. |
| 137 | |
| 138 | When the symbols have come from a coff file then all the debugging |
| 139 | information is preserved. |
| 140 | |
| 141 | Symbol tables are provided for writing to the back end in a vector of |
| 142 | pointers to pointers. This allows applications like the linker to |
| 143 | accumulate and output large symbol tables without having to do too |
| 144 | much byte copying. |
| 145 | |
| 146 | The symbol table is not output to a writable bfd until it is closed. |
| 147 | The order of operations on the canonical symbol table at that point |
| 148 | are: |
| 149 | @table @code |
| 150 | @item coff_renumber_symbols |
| 151 | This function runs through the provided symbol table and patches each |
| 152 | symbol marked as a file place holder (@code{C_FILE}) to point to the |
| 153 | next file place holder in the list. It also marks each @code{offset} |
| 154 | field in the list with the offset from the first symbol of the current |
| 155 | symbol. |
| 156 | |
| 157 | Another function of this procedure is to turn the canonical value form |
| 158 | of bfd into the form used by coff. Internally, bfd expects symbol |
| 159 | values to be offsets from a section base; so a symbol physically at |
| 160 | 0x120, but in a section starting at 0x100, would have the value 0x20. |
| 161 | Coff expects symbols to contain their final value, so symbols have |
| 162 | their values changed at this point to reflect their sum with their |
| 163 | owning section. Note that this transformation uses the |
| 164 | @code{output_section} field of the @code{asymbol}'s @code{asection} |
| 165 | @xref{Sections}. |
| 166 | @item coff_mangle_symbols |
| 167 | This routine runs though the provided symbol table and uses the |
| 168 | offsets generated by the previous pass and the pointers generated when |
| 169 | the symbol table was read in to create the structured hierachy |
| 170 | required by coff. It changes each pointer to a symbol to an index into |
| 171 | the symbol table of the symbol being referenced. |
| 172 | @item coff_write_symbols |
| 173 | This routine runs through the symbol table and patches up the symbols |
| 174 | from their internal form into the coff way, calls the bit twiddlers |
| 175 | and writes out the tabel to the file. |
| 176 | @end table |
| 177 | */ |
| 178 | |
| 179 | /*proto* |
| 180 | |
| 181 | The hidden information for an asymbol is: |
| 182 | |
| 183 | *+++ |
| 184 | |
| 185 | $ typedef struct coff_ptr_struct |
| 186 | $ { |
| 187 | |
| 188 | Remembers the offset from the first symbol in the file for this |
| 189 | symbol. Generated by @code{coff_renumber_symbols}. |
| 190 | |
| 191 | $ unsigned int offset; |
| 192 | |
| 193 | Should the tag field of this symbol be renumbered. |
| 194 | Created by @code{coff_pointerize_aux}. |
| 195 | |
| 196 | $ char fix_tag; |
| 197 | |
| 198 | Should the endidx field of this symbol be renumbered. |
| 199 | Created by @code{coff_pointerize_aux}. |
| 200 | |
| 201 | $ char fix_end; |
| 202 | |
| 203 | The container for the symbol structure as read and translated from the file. |
| 204 | |
| 205 | $ union { |
| 206 | $ union internal_auxent auxent; |
| 207 | $ struct internal_syment syment; |
| 208 | $ } u; |
| 209 | $ } combined_entry_type; |
| 210 | $ |
| 211 | |
| 212 | *--- |
| 213 | |
| 214 | Each canonical asymbol really looks like this: |
| 215 | |
| 216 | *+++ |
| 217 | |
| 218 | $ typedef struct coff_symbol_struct |
| 219 | $ { |
| 220 | |
| 221 | The actual symbol which the rest of bfd works with |
| 222 | |
| 223 | $ asymbol symbol; |
| 224 | |
| 225 | A pointer to the hidden information for this symbol |
| 226 | |
| 227 | $ combined_entry_type *native; |
| 228 | |
| 229 | A pointer to the linenumber information for this symbol |
| 230 | |
| 231 | $ struct lineno_cache_entry *lineno; |
| 232 | $ } coff_symbol_type; |
| 233 | |
| 234 | *--- |
| 235 | |
| 236 | */ |
| 237 | |
| 238 | /* $Id$ */ |
| 239 | /* Most of this hacked by Steve Chamberlain, steve@cygnus.com */ |
| 240 | |
| 241 | /* Align an address upward to a boundary, expressed as a number of bytes. |
| 242 | E.g. align to an 8-byte boundary with argument of 8. */ |
| 243 | #define ALIGN(this, boundary) \ |
| 244 | ((( (this) + ((boundary) -1)) & (~((boundary)-1)))) |
| 245 | |
| 246 | /* Align an address upward to a power of two. Argument is the power |
| 247 | of two, e.g. 8-byte alignment uses argument of 3 (8 == 2^3). */ |
| 248 | #define i960_align(addr, align) \ |
| 249 | ( ((addr) + ((1<<(align))-1)) & (-1 << (align))) |
| 250 | |
| 251 | |
| 252 | #define PUTWORD bfd_h_put_32 |
| 253 | #define PUTHALF bfd_h_put_16 |
| 254 | |
| 255 | #ifndef GET_FCN_LNNOPTR |
| 256 | #define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) |
| 257 | #endif |
| 258 | |
| 259 | #ifndef GET_FCN_ENDNDX |
| 260 | #define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) |
| 261 | #endif |
| 262 | |
| 263 | #ifndef PUT_FCN_LNNOPTR |
| 264 | #define PUT_FCN_LNNOPTR(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) |
| 265 | #endif |
| 266 | #ifndef PUT_FCN_ENDNDX |
| 267 | #define PUT_FCN_ENDNDX(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) |
| 268 | #endif |
| 269 | #ifndef GET_LNSZ_LNNO |
| 270 | #define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno) |
| 271 | #endif |
| 272 | #ifndef GET_LNSZ_SIZE |
| 273 | #define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size) |
| 274 | #endif |
| 275 | #ifndef PUT_LNSZ_LNNO |
| 276 | #define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno) |
| 277 | #endif |
| 278 | #ifndef PUT_LNSZ_SIZE |
| 279 | #define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size) |
| 280 | #endif |
| 281 | #ifndef GET_SCN_SCNLEN |
| 282 | #define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen) |
| 283 | #endif |
| 284 | #ifndef GET_SCN_NRELOC |
| 285 | #define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc) |
| 286 | #endif |
| 287 | #ifndef GET_SCN_NLINNO |
| 288 | #define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno) |
| 289 | #endif |
| 290 | #ifndef PUT_SCN_SCNLEN |
| 291 | #define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen) |
| 292 | #endif |
| 293 | #ifndef PUT_SCN_NRELOC |
| 294 | #define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc) |
| 295 | #endif |
| 296 | #ifndef PUT_SCN_NLINNO |
| 297 | #define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno) |
| 298 | #endif |
| 299 | |
| 300 | |
| 301 | \f |
| 302 | /* void warning(); */ |
| 303 | |
| 304 | /* |
| 305 | * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the |
| 306 | * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags(). |
| 307 | * NOTE: If you add to/change this routine, you should mirror the changes |
| 308 | * in styp_to_sec_flags(). |
| 309 | */ |
| 310 | static long |
| 311 | DEFUN(sec_to_styp_flags, (sec_name, sec_flags), |
| 312 | CONST char * sec_name AND |
| 313 | flagword sec_flags) |
| 314 | { |
| 315 | long styp_flags = 0; |
| 316 | |
| 317 | if (!strcmp(sec_name, _TEXT)) { |
| 318 | return((long)STYP_TEXT); |
| 319 | } else if (!strcmp(sec_name, _DATA)) { |
| 320 | return((long)STYP_DATA); |
| 321 | } else if (!strcmp(sec_name, _BSS)) { |
| 322 | return((long)STYP_BSS); |
| 323 | } |
| 324 | |
| 325 | /* Try and figure out what it should be */ |
| 326 | if (sec_flags & SEC_CODE) styp_flags = STYP_TEXT; |
| 327 | if (sec_flags & SEC_DATA) styp_flags = STYP_DATA; |
| 328 | else if (sec_flags & SEC_READONLY) |
| 329 | #ifdef STYP_LIT /* 29k readonly text/data section */ |
| 330 | styp_flags = STYP_LIT; |
| 331 | #else |
| 332 | styp_flags = STYP_TEXT; |
| 333 | #endif /* STYP_LIT */ |
| 334 | else if (sec_flags & SEC_LOAD) styp_flags = STYP_TEXT; |
| 335 | |
| 336 | if (styp_flags == 0) styp_flags = STYP_BSS; |
| 337 | |
| 338 | return(styp_flags); |
| 339 | } |
| 340 | /* |
| 341 | * Return a word with SEC_* flags set to represent the incoming |
| 342 | * STYP_* flags (from scnhdr.s_flags). The inverse of this |
| 343 | * function is sec_to_styp_flags(). |
| 344 | * NOTE: If you add to/change this routine, you should mirror the changes |
| 345 | * in sec_to_styp_flags(). |
| 346 | */ |
| 347 | static flagword |
| 348 | DEFUN(styp_to_sec_flags, (styp_flags), |
| 349 | long styp_flags) |
| 350 | { |
| 351 | flagword sec_flags=0; |
| 352 | |
| 353 | if ((styp_flags & STYP_TEXT) || (styp_flags & STYP_DATA)) |
| 354 | sec_flags = (SEC_LOAD | SEC_ALLOC); |
| 355 | else if (styp_flags & STYP_BSS) |
| 356 | sec_flags = SEC_ALLOC; |
| 357 | |
| 358 | #ifdef STYP_LIT /* A29k readonly text/data section type */ |
| 359 | if ((styp_flags & STYP_LIT) == STYP_LIT) |
| 360 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); |
| 361 | #endif /* STYP_LIT */ |
| 362 | |
| 363 | return(sec_flags); |
| 364 | } |
| 365 | |
| 366 | static int |
| 367 | DEFUN(get_index,(symbol), |
| 368 | asymbol *symbol) |
| 369 | { |
| 370 | return (int) symbol->value; |
| 371 | } |
| 372 | |
| 373 | static void |
| 374 | DEFUN(set_index,(symbol, idx), |
| 375 | asymbol *symbol AND |
| 376 | unsigned int idx) |
| 377 | { |
| 378 | symbol->value = idx; |
| 379 | } |
| 380 | |
| 381 | |
| 382 | /* ********************************************************************** |
| 383 | Here are all the routines for swapping the structures seen in the |
| 384 | outside world into the internal forms. |
| 385 | */ |
| 386 | |
| 387 | |
| 388 | static void |
| 389 | DEFUN(bfd_swap_reloc_in,(abfd, reloc_src, reloc_dst), |
| 390 | bfd *abfd AND |
| 391 | RELOC *reloc_src AND |
| 392 | struct internal_reloc *reloc_dst) |
| 393 | { |
| 394 | reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); |
| 395 | reloc_dst->r_symndx = bfd_h_get_32(abfd, (bfd_byte *) reloc_src->r_symndx); |
| 396 | reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); |
| 397 | #if M88 |
| 398 | reloc_dst->r_offset = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_offset); |
| 399 | #endif |
| 400 | } |
| 401 | |
| 402 | |
| 403 | static void |
| 404 | DEFUN(bfd_swap_reloc_out,(abfd, reloc_src, reloc_dst), |
| 405 | bfd *abfd AND |
| 406 | struct internal_reloc *reloc_src AND |
| 407 | struct external_reloc *reloc_dst) |
| 408 | { |
| 409 | bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); |
| 410 | bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); |
| 411 | bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) reloc_dst->r_type); |
| 412 | #if M88 |
| 413 | bfd_h_put_16(abfd, reloc_src->r_offset, (bfd_byte *) reloc_dst->r_offset); |
| 414 | #endif |
| 415 | |
| 416 | } |
| 417 | |
| 418 | static void |
| 419 | DEFUN(bfd_swap_filehdr_in,(abfd, filehdr_src, filehdr_dst), |
| 420 | bfd *abfd AND |
| 421 | FILHDR *filehdr_src AND |
| 422 | struct internal_filehdr *filehdr_dst) |
| 423 | { |
| 424 | filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic); |
| 425 | filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns); |
| 426 | filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat); |
| 427 | filehdr_dst->f_symptr = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_symptr); |
| 428 | filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms); |
| 429 | filehdr_dst->f_opthdr = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_opthdr); |
| 430 | filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags); |
| 431 | } |
| 432 | |
| 433 | static void |
| 434 | DEFUN(bfd_swap_filehdr_out,(abfd, filehdr_in, filehdr_out), |
| 435 | bfd *abfd AND |
| 436 | struct internal_filehdr *filehdr_in AND |
| 437 | FILHDR *filehdr_out) |
| 438 | { |
| 439 | bfd_h_put_16(abfd, filehdr_in->f_magic, (bfd_byte *) filehdr_out->f_magic); |
| 440 | bfd_h_put_16(abfd, filehdr_in->f_nscns, (bfd_byte *) filehdr_out->f_nscns); |
| 441 | bfd_h_put_32(abfd, filehdr_in->f_timdat, (bfd_byte *) filehdr_out->f_timdat); |
| 442 | bfd_h_put_32(abfd, filehdr_in->f_symptr, (bfd_byte *) filehdr_out->f_symptr); |
| 443 | bfd_h_put_32(abfd, filehdr_in->f_nsyms, (bfd_byte *) filehdr_out->f_nsyms); |
| 444 | bfd_h_put_16(abfd, filehdr_in->f_opthdr, (bfd_byte *) filehdr_out->f_opthdr); |
| 445 | bfd_h_put_16(abfd, filehdr_in->f_flags, (bfd_byte *) filehdr_out->f_flags); |
| 446 | } |
| 447 | |
| 448 | |
| 449 | #ifndef NO_COFF_SYMBOLS |
| 450 | |
| 451 | static void |
| 452 | DEFUN(coff_swap_sym_in,(abfd, ext1, in1), |
| 453 | bfd *abfd AND |
| 454 | PTR ext1 AND |
| 455 | PTR in1) |
| 456 | { |
| 457 | SYMENT *ext = (SYMENT *)ext1; |
| 458 | struct internal_syment *in = (struct internal_syment *)in1; |
| 459 | |
| 460 | if( ext->e.e_name[0] == 0) { |
| 461 | in->_n._n_n._n_zeroes = 0; |
| 462 | in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e.e.e_offset); |
| 463 | } |
| 464 | else { |
| 465 | memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN); |
| 466 | } |
| 467 | in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value); |
| 468 | in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum); |
| 469 | if (sizeof(ext->e_type) == 2){ |
| 470 | in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type); |
| 471 | } |
| 472 | else { |
| 473 | in->n_type = bfd_h_get_32(abfd, (bfd_byte *) ext->e_type); |
| 474 | } |
| 475 | in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass); |
| 476 | in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux); |
| 477 | } |
| 478 | |
| 479 | static void |
| 480 | DEFUN(coff_swap_sym_out,(abfd,in, ext), |
| 481 | bfd *abfd AND |
| 482 | struct internal_syment *in AND |
| 483 | SYMENT *ext) |
| 484 | { |
| 485 | if(in->_n._n_name[0] == 0) { |
| 486 | bfd_h_put_32(abfd, 0, (bfd_byte *) ext->e.e.e_zeroes); |
| 487 | bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e.e.e_offset); |
| 488 | } |
| 489 | else { |
| 490 | memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN); |
| 491 | } |
| 492 | bfd_h_put_32(abfd, in->n_value , (bfd_byte *) ext->e_value); |
| 493 | bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum); |
| 494 | if (sizeof(ext->e_type) == 2) |
| 495 | { |
| 496 | bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type); |
| 497 | } |
| 498 | else |
| 499 | { |
| 500 | bfd_h_put_32(abfd, in->n_type , (bfd_byte *) ext->e_type); |
| 501 | } |
| 502 | bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass); |
| 503 | bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux); |
| 504 | } |
| 505 | |
| 506 | static void |
| 507 | DEFUN(coff_swap_aux_in,(abfd, ext1, type, class, in1), |
| 508 | bfd *abfd AND |
| 509 | PTR ext1 AND |
| 510 | int type AND |
| 511 | int class AND |
| 512 | PTR in1) |
| 513 | { |
| 514 | AUXENT *ext = (AUXENT *)ext1; |
| 515 | union internal_auxent *in = (union internal_auxent *)in1; |
| 516 | switch (class) { |
| 517 | case C_FILE: |
| 518 | if (ext->x_file.x_fname[0] == 0) { |
| 519 | in->x_file.x_n.x_zeroes = 0; |
| 520 | in->x_file.x_n.x_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset); |
| 521 | } else { |
| 522 | memcpy (in->x_file.x_fname, ext->x_file.x_fname, |
| 523 | sizeof (in->x_file.x_fname)); |
| 524 | } |
| 525 | |
| 526 | break; |
| 527 | case C_STAT: |
| 528 | #ifdef C_LEAFSTAT |
| 529 | case C_LEAFSTAT: |
| 530 | #endif |
| 531 | case C_HIDDEN: |
| 532 | if (type == T_NULL) { |
| 533 | in->x_scn.x_scnlen = GET_SCN_SCNLEN(abfd, ext); |
| 534 | in->x_scn.x_nreloc = GET_SCN_NRELOC(abfd, ext); |
| 535 | in->x_scn.x_nlinno = GET_SCN_NLINNO(abfd, ext); |
| 536 | break; |
| 537 | } |
| 538 | default: |
| 539 | in->x_sym.x_tagndx.l = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_tagndx); |
| 540 | #ifndef NO_TVNDX |
| 541 | in->x_sym.x_tvndx = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_tvndx); |
| 542 | #endif |
| 543 | |
| 544 | if (ISARY(type) || class == C_BLOCK) { |
| 545 | 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]); |
| 546 | 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]); |
| 547 | 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]); |
| 548 | 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]); |
| 549 | } |
| 550 | in->x_sym.x_fcnary.x_fcn.x_lnnoptr = GET_FCN_LNNOPTR(abfd, ext); |
| 551 | in->x_sym.x_fcnary.x_fcn.x_endndx.l = GET_FCN_ENDNDX(abfd, ext); |
| 552 | |
| 553 | if (ISFCN(type)) { |
| 554 | in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_fsize); |
| 555 | } |
| 556 | else { |
| 557 | in->x_sym.x_misc.x_lnsz.x_lnno = GET_LNSZ_LNNO(abfd, ext); |
| 558 | in->x_sym.x_misc.x_lnsz.x_size = GET_LNSZ_SIZE(abfd, ext); |
| 559 | } |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | static void |
| 564 | DEFUN(coff_swap_aux_out,(abfd, in, type, class, ext), |
| 565 | bfd *abfd AND |
| 566 | union internal_auxent *in AND |
| 567 | int type AND |
| 568 | int class AND |
| 569 | AUXENT *ext) |
| 570 | { |
| 571 | switch (class) { |
| 572 | case C_FILE: |
| 573 | if (in->x_file.x_fname[0] == 0) { |
| 574 | PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes ); |
| 575 | PUTWORD(abfd, in->x_file.x_n.x_offset, (bfd_byte *) ext->x_file.x_n.x_offset); |
| 576 | } |
| 577 | else { |
| 578 | memcpy ( ext->x_file.x_fname,in->x_file.x_fname, |
| 579 | sizeof (in->x_file.x_fname)); |
| 580 | } |
| 581 | break; |
| 582 | case C_STAT: |
| 583 | #ifdef C_LEAFSTAT |
| 584 | case C_LEAFSTAT: |
| 585 | #endif |
| 586 | case C_HIDDEN: |
| 587 | if (type == T_NULL) { |
| 588 | |
| 589 | PUT_SCN_SCNLEN(abfd, in->x_scn.x_scnlen, ext); |
| 590 | PUT_SCN_NRELOC(abfd, in->x_scn.x_nreloc, ext); |
| 591 | PUT_SCN_NLINNO(abfd, in->x_scn.x_nlinno, ext); |
| 592 | break; |
| 593 | } |
| 594 | default: |
| 595 | PUTWORD(abfd, in->x_sym.x_tagndx.l, (bfd_byte *) ext->x_sym.x_tagndx); |
| 596 | #ifndef NO_TVNDX |
| 597 | PUTWORD(abfd, in->x_sym.x_tvndx , (bfd_byte *) ext->x_sym.x_tvndx); |
| 598 | #endif |
| 599 | |
| 600 | if (ISFCN(type)) { |
| 601 | PUTWORD(abfd, in->x_sym.x_misc.x_fsize, (bfd_byte *) ext->x_sym.x_misc.x_fsize); |
| 602 | PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext); |
| 603 | PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext); |
| 604 | } |
| 605 | else { |
| 606 | |
| 607 | if (ISARY(type) || class == C_BLOCK) { |
| 608 | 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]); |
| 609 | 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]); |
| 610 | 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]); |
| 611 | 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]); |
| 612 | |
| 613 | } |
| 614 | PUT_LNSZ_LNNO(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext); |
| 615 | PUT_LNSZ_SIZE(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext); |
| 616 | |
| 617 | PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext); |
| 618 | PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext); |
| 619 | |
| 620 | |
| 621 | } |
| 622 | } |
| 623 | } |
| 624 | |
| 625 | #endif /* NO_COFF_SYMBOLS */ |
| 626 | |
| 627 | #ifndef NO_COFF_LINENOS |
| 628 | |
| 629 | static void |
| 630 | DEFUN(coff_swap_lineno_in,(abfd, ext1, in1), |
| 631 | bfd *abfd AND |
| 632 | PTR ext1 AND |
| 633 | PTR in1) |
| 634 | { |
| 635 | LINENO *ext = (LINENO *)ext1; |
| 636 | struct internal_lineno *in = (struct internal_lineno *)in1; |
| 637 | |
| 638 | in->l_addr.l_symndx = bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx); |
| 639 | #if defined(M88) |
| 640 | in->l_lnno = bfd_h_get_32(abfd, (bfd_byte *) ext->l_lnno); |
| 641 | #else |
| 642 | in->l_lnno = bfd_h_get_16(abfd, (bfd_byte *) ext->l_lnno); |
| 643 | #endif |
| 644 | } |
| 645 | |
| 646 | static void |
| 647 | DEFUN(coff_swap_lineno_out,(abfd, in, ext), |
| 648 | bfd *abfd AND |
| 649 | struct internal_lineno *in AND |
| 650 | struct external_lineno *ext) |
| 651 | { |
| 652 | PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *) ext->l_addr.l_symndx); |
| 653 | #if defined(M88) |
| 654 | PUTWORD(abfd, in->l_lnno, (bfd_byte *) ext->l_lnno); |
| 655 | #else |
| 656 | PUTHALF(abfd, in->l_lnno, (bfd_byte *) ext->l_lnno); |
| 657 | #endif |
| 658 | } |
| 659 | |
| 660 | #endif /* NO_COFF_LINENOS */ |
| 661 | |
| 662 | |
| 663 | static void |
| 664 | DEFUN(bfd_swap_aouthdr_in,(abfd, aouthdr_ext1, aouthdr_int1), |
| 665 | bfd *abfd AND |
| 666 | PTR aouthdr_ext1 AND |
| 667 | PTR aouthdr_int1) |
| 668 | { |
| 669 | AOUTHDR *aouthdr_ext = (AOUTHDR *) aouthdr_ext1; |
| 670 | struct internal_aouthdr *aouthdr_int = (struct internal_aouthdr *)aouthdr_int1; |
| 671 | |
| 672 | aouthdr_int->magic = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->magic); |
| 673 | aouthdr_int->vstamp = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->vstamp); |
| 674 | aouthdr_int->tsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tsize); |
| 675 | aouthdr_int->dsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->dsize); |
| 676 | aouthdr_int->bsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->bsize); |
| 677 | aouthdr_int->entry = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->entry); |
| 678 | aouthdr_int->text_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->text_start); |
| 679 | aouthdr_int->data_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->data_start); |
| 680 | #ifdef I960 |
| 681 | aouthdr_int->tagentries = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tagentries); |
| 682 | #endif |
| 683 | } |
| 684 | |
| 685 | static void |
| 686 | DEFUN(bfd_swap_aouthdr_out,(abfd, aouthdr_in, aouthdr_out), |
| 687 | bfd *abfd AND |
| 688 | struct internal_aouthdr *aouthdr_in AND |
| 689 | AOUTHDR *aouthdr_out) |
| 690 | { |
| 691 | bfd_h_put_16(abfd, aouthdr_in->magic, (bfd_byte *) aouthdr_out->magic); |
| 692 | bfd_h_put_16(abfd, aouthdr_in->vstamp, (bfd_byte *) aouthdr_out->vstamp); |
| 693 | bfd_h_put_32(abfd, aouthdr_in->tsize, (bfd_byte *) aouthdr_out->tsize); |
| 694 | bfd_h_put_32(abfd, aouthdr_in->dsize, (bfd_byte *) aouthdr_out->dsize); |
| 695 | bfd_h_put_32(abfd, aouthdr_in->bsize, (bfd_byte *) aouthdr_out->bsize); |
| 696 | bfd_h_put_32(abfd, aouthdr_in->entry, (bfd_byte *) aouthdr_out->entry); |
| 697 | bfd_h_put_32(abfd, aouthdr_in->text_start, (bfd_byte *) aouthdr_out->text_start); |
| 698 | bfd_h_put_32(abfd, aouthdr_in->data_start, (bfd_byte *) aouthdr_out->data_start); |
| 699 | #ifdef I960 |
| 700 | bfd_h_put_32(abfd, aouthdr_in->tagentries, (bfd_byte *) aouthdr_out->tagentries); |
| 701 | #endif |
| 702 | } |
| 703 | |
| 704 | static void |
| 705 | DEFUN(coff_swap_scnhdr_in,(abfd, scnhdr_ext, scnhdr_int), |
| 706 | bfd *abfd AND |
| 707 | SCNHDR *scnhdr_ext AND |
| 708 | struct internal_scnhdr *scnhdr_int) |
| 709 | { |
| 710 | memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name)); |
| 711 | scnhdr_int->s_vaddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_vaddr); |
| 712 | scnhdr_int->s_paddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_paddr); |
| 713 | scnhdr_int->s_size = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_size); |
| 714 | scnhdr_int->s_scnptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_scnptr); |
| 715 | scnhdr_int->s_relptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_relptr); |
| 716 | scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); |
| 717 | scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags); |
| 718 | #if defined(M88) |
| 719 | scnhdr_int->s_nreloc = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); |
| 720 | scnhdr_int->s_nlnno = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); |
| 721 | #else |
| 722 | scnhdr_int->s_nreloc = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); |
| 723 | scnhdr_int->s_nlnno = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); |
| 724 | #endif |
| 725 | #ifdef I960 |
| 726 | scnhdr_int->s_align = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_align); |
| 727 | #endif |
| 728 | } |
| 729 | |
| 730 | static void |
| 731 | DEFUN(swap_scnhdr_out,(abfd, scnhdr_int, scnhdr_ext), |
| 732 | bfd *abfd AND |
| 733 | struct internal_scnhdr *scnhdr_int AND |
| 734 | SCNHDR *scnhdr_ext) |
| 735 | { |
| 736 | memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name)); |
| 737 | PUTWORD(abfd, scnhdr_int->s_vaddr, (bfd_byte *) scnhdr_ext->s_vaddr); |
| 738 | PUTWORD(abfd, scnhdr_int->s_paddr, (bfd_byte *) scnhdr_ext->s_paddr); |
| 739 | PUTWORD(abfd, scnhdr_int->s_size, (bfd_byte *) scnhdr_ext->s_size); |
| 740 | PUTWORD(abfd, scnhdr_int->s_scnptr, (bfd_byte *) scnhdr_ext->s_scnptr); |
| 741 | PUTWORD(abfd, scnhdr_int->s_relptr, (bfd_byte *) scnhdr_ext->s_relptr); |
| 742 | PUTWORD(abfd, scnhdr_int->s_lnnoptr, (bfd_byte *) scnhdr_ext->s_lnnoptr); |
| 743 | PUTWORD(abfd, scnhdr_int->s_flags, (bfd_byte *) scnhdr_ext->s_flags); |
| 744 | #if defined(M88) |
| 745 | PUTWORD(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); |
| 746 | PUTWORD(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); |
| 747 | #else |
| 748 | PUTHALF(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); |
| 749 | PUTHALF(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); |
| 750 | #endif |
| 751 | |
| 752 | #if defined(I960) |
| 753 | PUTWORD(abfd, scnhdr_int->s_align, (bfd_byte *) scnhdr_ext->s_align); |
| 754 | #endif |
| 755 | } |
| 756 | |
| 757 | |
| 758 | /* **********************************************************************/ |
| 759 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be |
| 760 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* |
| 761 | be \0-terminated. |
| 762 | */ |
| 763 | static char * |
| 764 | DEFUN(copy_name,(abfd, name, maxlen), |
| 765 | bfd *abfd AND |
| 766 | char *name AND |
| 767 | int maxlen) |
| 768 | { |
| 769 | int len; |
| 770 | char *newname; |
| 771 | |
| 772 | for (len = 0; len < maxlen; ++len) { |
| 773 | if (name[len] == '\0') { |
| 774 | break; |
| 775 | } |
| 776 | } |
| 777 | |
| 778 | if ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) { |
| 779 | bfd_error = no_memory; |
| 780 | return (NULL); |
| 781 | } |
| 782 | strncpy(newname, name, len); |
| 783 | newname[len] = '\0'; |
| 784 | return newname; |
| 785 | } |
| 786 | |
| 787 | /* |
| 788 | initialize a section structure with information peculiar to this |
| 789 | particular implementation of coff |
| 790 | */ |
| 791 | |
| 792 | static boolean |
| 793 | DEFUN(coff_new_section_hook,(abfd_ignore, section_ignore), |
| 794 | bfd *abfd_ignore AND |
| 795 | asection *section_ignore) |
| 796 | { |
| 797 | section_ignore->alignment_power = abfd_ignore->xvec->align_power_min; |
| 798 | return true; |
| 799 | } |
| 800 | |
| 801 | /* Take a section header read from a coff file (in HOST byte order), |
| 802 | and make a BFD "section" out of it. */ |
| 803 | static boolean |
| 804 | DEFUN(make_a_section_from_file,(abfd, hdr), |
| 805 | bfd *abfd AND |
| 806 | struct internal_scnhdr *hdr) |
| 807 | { |
| 808 | asection *return_section; |
| 809 | |
| 810 | { |
| 811 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ |
| 812 | char *name = bfd_alloc(abfd, sizeof (hdr->s_name)+1); |
| 813 | if (name == NULL) { |
| 814 | bfd_error = no_memory; |
| 815 | return false; |
| 816 | } |
| 817 | strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); |
| 818 | name[sizeof (hdr->s_name)] = 0; |
| 819 | |
| 820 | return_section = bfd_make_section(abfd, name); |
| 821 | } |
| 822 | |
| 823 | /* s_paddr is presumed to be = to s_vaddr */ |
| 824 | #define assign(to, from) return_section->to = hdr->from |
| 825 | assign(vma, s_vaddr); |
| 826 | /* assign (vma, s_vaddr); */ |
| 827 | assign(size, s_size); |
| 828 | assign(filepos, s_scnptr); |
| 829 | assign(rel_filepos, s_relptr); |
| 830 | assign(reloc_count, s_nreloc); |
| 831 | #ifdef I960 |
| 832 | { |
| 833 | /* FIXME, use a temp var rather than alignment_power */ |
| 834 | assign(alignment_power, s_align); |
| 835 | { |
| 836 | unsigned int i; |
| 837 | for (i = 0; i < 32; i++) { |
| 838 | if ((1 << i) >= (int) (return_section->alignment_power)) { |
| 839 | return_section->alignment_power = i; |
| 840 | break; |
| 841 | } |
| 842 | } |
| 843 | } |
| 844 | } |
| 845 | #endif |
| 846 | assign(line_filepos, s_lnnoptr); |
| 847 | /* |
| 848 | return_section->linesize = hdr->s_nlnno * sizeof (struct lineno); |
| 849 | */ |
| 850 | |
| 851 | return_section->lineno_count = hdr->s_nlnno; |
| 852 | return_section->userdata = NULL; |
| 853 | return_section->next = (asection *) NULL; |
| 854 | return_section->flags = styp_to_sec_flags(hdr->s_flags); |
| 855 | |
| 856 | |
| 857 | if (hdr->s_nreloc != 0) |
| 858 | return_section->flags |= SEC_RELOC; |
| 859 | /* FIXME: should this check 'hdr->s_size > 0' */ |
| 860 | if (hdr->s_scnptr != 0) |
| 861 | return_section->flags |= SEC_HAS_CONTENTS; |
| 862 | return true; |
| 863 | } |
| 864 | static boolean |
| 865 | DEFUN(coff_mkobject,(abfd), |
| 866 | bfd *abfd) |
| 867 | { |
| 868 | set_tdata (abfd, bfd_zalloc (abfd,sizeof(coff_data_type))); |
| 869 | if (coff_data(abfd) == 0) { |
| 870 | bfd_error = no_memory; |
| 871 | return false; |
| 872 | } |
| 873 | coff_data(abfd)->relocbase = 0; |
| 874 | return true; |
| 875 | } |
| 876 | |
| 877 | static |
| 878 | bfd_target * |
| 879 | DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a), |
| 880 | bfd *abfd AND |
| 881 | unsigned nscns AND |
| 882 | struct internal_filehdr *internal_f AND |
| 883 | struct internal_aouthdr *internal_a) |
| 884 | { |
| 885 | coff_data_type *coff; |
| 886 | |
| 887 | size_t readsize; /* length of file_info */ |
| 888 | SCNHDR *external_sections; |
| 889 | |
| 890 | /* Build a play area */ |
| 891 | if (coff_mkobject(abfd) != true) |
| 892 | return 0; |
| 893 | coff = coff_data(abfd); |
| 894 | |
| 895 | |
| 896 | external_sections = (SCNHDR *)bfd_alloc(abfd, readsize = (nscns * SCNHSZ)); |
| 897 | |
| 898 | if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) { |
| 899 | goto fail; |
| 900 | } |
| 901 | |
| 902 | |
| 903 | /* Now copy data as required; construct all asections etc */ |
| 904 | coff->symbol_index_slew = 0; |
| 905 | coff->relocbase =0; |
| 906 | coff->raw_syment_count = 0; |
| 907 | coff->raw_linenos = 0; |
| 908 | coff->raw_syments = 0; |
| 909 | coff->sym_filepos =0; |
| 910 | coff->flags = internal_f->f_flags; |
| 911 | if (nscns != 0) { |
| 912 | unsigned int i; |
| 913 | for (i = 0; i < nscns; i++) { |
| 914 | struct internal_scnhdr tmp; |
| 915 | coff_swap_scnhdr_in(abfd, external_sections + i, &tmp); |
| 916 | make_a_section_from_file(abfd,&tmp); |
| 917 | } |
| 918 | } |
| 919 | /* Determine the machine architecture and type. */ |
| 920 | abfd->obj_machine = 0; |
| 921 | switch (internal_f->f_magic) { |
| 922 | #ifdef I386MAGIC |
| 923 | case I386MAGIC: |
| 924 | abfd->obj_arch = bfd_arch_i386; |
| 925 | abfd->obj_machine = 0; |
| 926 | break; |
| 927 | #endif |
| 928 | |
| 929 | #ifdef A29K_MAGIC_BIG |
| 930 | case A29K_MAGIC_BIG: |
| 931 | case A29K_MAGIC_LITTLE: |
| 932 | abfd->obj_arch = bfd_arch_a29k; |
| 933 | abfd->obj_machine = 0; |
| 934 | break; |
| 935 | #endif |
| 936 | |
| 937 | #ifdef MIPS |
| 938 | case MIPS_MAGIC_1: |
| 939 | case MIPS_MAGIC_2: |
| 940 | case MIPS_MAGIC_3: |
| 941 | abfd->obj_arch = bfd_arch_mips; |
| 942 | abfd->obj_machine = 0; |
| 943 | break; |
| 944 | #endif |
| 945 | |
| 946 | #ifdef MC68MAGIC |
| 947 | case MC68MAGIC: |
| 948 | case M68MAGIC: |
| 949 | abfd->obj_arch = bfd_arch_m68k; |
| 950 | abfd->obj_machine = 68020; |
| 951 | break; |
| 952 | #endif |
| 953 | #ifdef MC88MAGIC |
| 954 | case MC88MAGIC: |
| 955 | case MC88DMAGIC: |
| 956 | case MC88OMAGIC: |
| 957 | abfd->obj_arch = bfd_arch_m88k; |
| 958 | abfd->obj_machine = 88100; |
| 959 | break; |
| 960 | #endif |
| 961 | #ifdef I960 |
| 962 | #ifdef I960ROMAGIC |
| 963 | case I960ROMAGIC: |
| 964 | case I960RWMAGIC: |
| 965 | abfd->obj_arch = bfd_arch_i960; |
| 966 | switch (F_I960TYPE & internal_f->f_flags) |
| 967 | { |
| 968 | default: |
| 969 | case F_I960CORE: |
| 970 | abfd->obj_machine = bfd_mach_i960_core; |
| 971 | break; |
| 972 | case F_I960KB: |
| 973 | abfd->obj_machine = bfd_mach_i960_kb_sb; |
| 974 | break; |
| 975 | case F_I960MC: |
| 976 | abfd->obj_machine = bfd_mach_i960_mc; |
| 977 | break; |
| 978 | case F_I960XA: |
| 979 | abfd->obj_machine = bfd_mach_i960_xa; |
| 980 | break; |
| 981 | case F_I960CA: |
| 982 | abfd->obj_machine = bfd_mach_i960_ca; |
| 983 | break; |
| 984 | case F_I960KA: |
| 985 | abfd->obj_machine = bfd_mach_i960_ka_sa; |
| 986 | break; |
| 987 | |
| 988 | } |
| 989 | break; |
| 990 | #endif |
| 991 | #endif |
| 992 | |
| 993 | default: /* Unreadable input file type */ |
| 994 | abfd->obj_arch = bfd_arch_obscure; |
| 995 | break; |
| 996 | } |
| 997 | |
| 998 | if (!(internal_f->f_flags & F_RELFLG)) |
| 999 | abfd->flags |= HAS_RELOC; |
| 1000 | if ((internal_f->f_flags & F_EXEC)) |
| 1001 | abfd->flags |= EXEC_P; |
| 1002 | if (!(internal_f->f_flags & F_LNNO)) |
| 1003 | abfd->flags |= HAS_LINENO; |
| 1004 | if (!(internal_f->f_flags & F_LSYMS)) |
| 1005 | abfd->flags |= HAS_LOCALS; |
| 1006 | |
| 1007 | |
| 1008 | bfd_get_symcount(abfd) = internal_f->f_nsyms; |
| 1009 | if (internal_f->f_nsyms) |
| 1010 | abfd->flags |= HAS_SYMS; |
| 1011 | |
| 1012 | coff->sym_filepos = internal_f->f_symptr; |
| 1013 | |
| 1014 | |
| 1015 | |
| 1016 | coff->symbols = (coff_symbol_type *) NULL; |
| 1017 | bfd_get_start_address(abfd) = internal_f->f_opthdr ? internal_a->entry : 0; |
| 1018 | |
| 1019 | return abfd->xvec; |
| 1020 | fail: |
| 1021 | bfd_release(abfd, coff); |
| 1022 | return (bfd_target *)NULL; |
| 1023 | } |
| 1024 | |
| 1025 | static bfd_target * |
| 1026 | DEFUN(coff_object_p,(abfd), |
| 1027 | bfd *abfd) |
| 1028 | { |
| 1029 | int nscns; |
| 1030 | FILHDR filehdr; |
| 1031 | AOUTHDR opthdr; |
| 1032 | struct internal_filehdr internal_f; |
| 1033 | struct internal_aouthdr internal_a; |
| 1034 | |
| 1035 | bfd_error = system_call_error; |
| 1036 | |
| 1037 | /* figure out how much to read */ |
| 1038 | if (bfd_read((PTR) &filehdr, 1, FILHSZ, abfd) != FILHSZ) |
| 1039 | return 0; |
| 1040 | |
| 1041 | bfd_swap_filehdr_in(abfd, &filehdr, &internal_f); |
| 1042 | |
| 1043 | if (BADMAG(internal_f)) { |
| 1044 | bfd_error = wrong_format; |
| 1045 | return 0; |
| 1046 | } |
| 1047 | nscns =internal_f.f_nscns; |
| 1048 | |
| 1049 | if (internal_f.f_opthdr) { |
| 1050 | if (bfd_read((PTR) &opthdr, 1,AOUTSZ, abfd) != AOUTSZ) { |
| 1051 | return 0; |
| 1052 | } |
| 1053 | bfd_swap_aouthdr_in(abfd, &opthdr, &internal_a); |
| 1054 | } |
| 1055 | |
| 1056 | /* Seek past the opt hdr stuff */ |
| 1057 | bfd_seek(abfd, internal_f.f_opthdr + FILHSZ, SEEK_SET); |
| 1058 | |
| 1059 | /* if the optional header is NULL or not the correct size then |
| 1060 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) |
| 1061 | and Intel 960 readwrite headers (I960WRMAGIC) is that the |
| 1062 | optional header is of a different size. |
| 1063 | |
| 1064 | But the mips keeps extra stuff in it's opthdr, so dont check |
| 1065 | when doing that |
| 1066 | */ |
| 1067 | |
| 1068 | #ifndef MIPS |
| 1069 | if (internal_f.f_opthdr != 0 && AOUTSZ != internal_f.f_opthdr) |
| 1070 | return (bfd_target *)NULL; |
| 1071 | #endif |
| 1072 | |
| 1073 | return coff_real_object_p(abfd, nscns, &internal_f, &internal_a); |
| 1074 | } |
| 1075 | |
| 1076 | |
| 1077 | |
| 1078 | #ifndef NO_COFF_LINENOS |
| 1079 | |
| 1080 | static void |
| 1081 | DEFUN(coff_count_linenumbers,(abfd), |
| 1082 | bfd *abfd) |
| 1083 | { |
| 1084 | unsigned int limit = bfd_get_symcount(abfd); |
| 1085 | unsigned int i; |
| 1086 | asymbol **p; |
| 1087 | { |
| 1088 | asection *s = abfd->sections->output_section; |
| 1089 | while (s) { |
| 1090 | BFD_ASSERT(s->lineno_count == 0); |
| 1091 | s = s->next; |
| 1092 | } |
| 1093 | } |
| 1094 | |
| 1095 | |
| 1096 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) { |
| 1097 | asymbol *q_maybe = *p; |
| 1098 | if (q_maybe->the_bfd->xvec->flavour == bfd_target_coff_flavour_enum) { |
| 1099 | coff_symbol_type *q = coffsymbol(q_maybe); |
| 1100 | if (q->lineno) { |
| 1101 | /* |
| 1102 | This symbol has a linenumber, increment the owning |
| 1103 | section's linenumber count |
| 1104 | */ |
| 1105 | alent *l = q->lineno; |
| 1106 | q->symbol.section->output_section->lineno_count++; |
| 1107 | l++; |
| 1108 | while (l->line_number) { |
| 1109 | q->symbol.section->output_section->lineno_count++; |
| 1110 | l++; |
| 1111 | } |
| 1112 | } |
| 1113 | } |
| 1114 | } |
| 1115 | } |
| 1116 | |
| 1117 | #endif /* NO_COFF_LINENOS */ |
| 1118 | |
| 1119 | #ifndef NO_COFF_SYMBOLS |
| 1120 | |
| 1121 | /* |
| 1122 | Takes a bfd and a symbol, returns a pointer to the coff specific area |
| 1123 | of the symbol if there is one. |
| 1124 | */ |
| 1125 | static coff_symbol_type * |
| 1126 | DEFUN(coff_symbol_from,(abfd, symbol), |
| 1127 | bfd *abfd AND |
| 1128 | asymbol *symbol) |
| 1129 | { |
| 1130 | if (symbol->the_bfd->xvec->flavour != bfd_target_coff_flavour_enum) |
| 1131 | return (coff_symbol_type *)NULL; |
| 1132 | |
| 1133 | if (symbol->the_bfd->tdata == (PTR)NULL) |
| 1134 | return (coff_symbol_type *)NULL; |
| 1135 | |
| 1136 | return (coff_symbol_type *) symbol; |
| 1137 | } |
| 1138 | |
| 1139 | |
| 1140 | |
| 1141 | static void |
| 1142 | DEFUN(fixup_symbol_value,(coff_symbol_ptr, syment), |
| 1143 | coff_symbol_type *coff_symbol_ptr AND |
| 1144 | struct internal_syment *syment) |
| 1145 | { |
| 1146 | |
| 1147 | /* Normalize the symbol flags */ |
| 1148 | if (coff_symbol_ptr->symbol.flags & BSF_FORT_COMM) { |
| 1149 | /* a common symbol is undefined with a value */ |
| 1150 | syment->n_scnum = N_UNDEF; |
| 1151 | syment->n_value = coff_symbol_ptr->symbol.value; |
| 1152 | } |
| 1153 | else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) { |
| 1154 | syment->n_value = coff_symbol_ptr->symbol.value; |
| 1155 | } |
| 1156 | else if (coff_symbol_ptr->symbol.flags & BSF_UNDEFINED) { |
| 1157 | syment->n_scnum = N_UNDEF; |
| 1158 | syment->n_value = 0; |
| 1159 | } |
| 1160 | else if (coff_symbol_ptr->symbol.flags & BSF_ABSOLUTE) { |
| 1161 | syment->n_scnum = N_ABS; |
| 1162 | syment->n_value = coff_symbol_ptr->symbol.value; |
| 1163 | } |
| 1164 | else { |
| 1165 | syment->n_scnum = |
| 1166 | coff_symbol_ptr->symbol.section->output_section->index+1; |
| 1167 | |
| 1168 | syment->n_value = |
| 1169 | coff_symbol_ptr->symbol.value + |
| 1170 | coff_symbol_ptr->symbol.section->output_offset + |
| 1171 | coff_symbol_ptr->symbol.section->output_section->vma; |
| 1172 | } |
| 1173 | } |
| 1174 | |
| 1175 | /* run through all the symbols in the symbol table and work out what |
| 1176 | their indexes into the symbol table will be when output |
| 1177 | |
| 1178 | Coff requires that each C_FILE symbol points to the next one in the |
| 1179 | chain, and that the last one points to the first external symbol. We |
| 1180 | do that here too. |
| 1181 | |
| 1182 | */ |
| 1183 | static void |
| 1184 | DEFUN(coff_renumber_symbols,(bfd_ptr), |
| 1185 | bfd *bfd_ptr) |
| 1186 | { |
| 1187 | unsigned int symbol_count = bfd_get_symcount(bfd_ptr); |
| 1188 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
| 1189 | unsigned int native_index = 0; |
| 1190 | struct internal_syment *last_file = (struct internal_syment *)NULL; |
| 1191 | unsigned int symbol_index; |
| 1192 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) |
| 1193 | { |
| 1194 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); |
| 1195 | if (coff_symbol_ptr && coff_symbol_ptr->native) { |
| 1196 | combined_entry_type *s = coff_symbol_ptr->native; |
| 1197 | int i; |
| 1198 | |
| 1199 | if (s->u.syment.n_sclass == C_FILE) |
| 1200 | { |
| 1201 | if (last_file != (struct internal_syment *)NULL) { |
| 1202 | last_file->n_value = native_index; |
| 1203 | } |
| 1204 | last_file = &(s->u.syment); |
| 1205 | } |
| 1206 | else { |
| 1207 | |
| 1208 | /* Modify the symbol values according to their section and |
| 1209 | type */ |
| 1210 | |
| 1211 | fixup_symbol_value(coff_symbol_ptr, &(s->u.syment)); |
| 1212 | } |
| 1213 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) { |
| 1214 | s[i].offset = native_index ++; |
| 1215 | } |
| 1216 | } |
| 1217 | else { |
| 1218 | native_index++; |
| 1219 | } |
| 1220 | } |
| 1221 | } |
| 1222 | |
| 1223 | |
| 1224 | /* |
| 1225 | Run thorough the symbol table again, and fix it so that all pointers to |
| 1226 | entries are changed to the entries' index in the output symbol table. |
| 1227 | |
| 1228 | */ |
| 1229 | static void |
| 1230 | DEFUN(coff_mangle_symbols,(bfd_ptr), |
| 1231 | bfd *bfd_ptr) |
| 1232 | { |
| 1233 | unsigned int symbol_count = bfd_get_symcount(bfd_ptr); |
| 1234 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
| 1235 | |
| 1236 | unsigned int symbol_index; |
| 1237 | |
| 1238 | |
| 1239 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) |
| 1240 | { |
| 1241 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); |
| 1242 | if (coff_symbol_ptr && coff_symbol_ptr->native ) { |
| 1243 | int i; |
| 1244 | combined_entry_type *s = coff_symbol_ptr->native; |
| 1245 | |
| 1246 | |
| 1247 | |
| 1248 | |
| 1249 | |
| 1250 | for (i = 0; i < s->u.syment.n_numaux ; i++) { |
| 1251 | combined_entry_type *a = s + i + 1; |
| 1252 | if (a->fix_tag) { |
| 1253 | a->u.auxent.x_sym.x_tagndx.l = a->u.auxent.x_sym.x_tagndx.p->offset; |
| 1254 | } |
| 1255 | if (a->fix_end) { |
| 1256 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = |
| 1257 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; |
| 1258 | } |
| 1259 | |
| 1260 | } |
| 1261 | } |
| 1262 | } |
| 1263 | } |
| 1264 | |
| 1265 | #if 0 |
| 1266 | unsigned int symbol_count = bfd_get_symcount(bfd_ptr); |
| 1267 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
| 1268 | struct internal_syment *last_tagndx = (struct internal_syment *)NULL; |
| 1269 | struct internal_syment *last_file = (struct internal_syment *)NULL; |
| 1270 | struct internal_syment *last_fcn = (struct internal_syment *)NULL; |
| 1271 | struct internal_syment *block_stack[50]; |
| 1272 | struct internal_syment **last_block = &block_stack[0]; |
| 1273 | boolean first_time = true; |
| 1274 | unsigned int symbol_index; |
| 1275 | unsigned int native_index = 0; |
| 1276 | |
| 1277 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) { |
| 1278 | coff_symbol_type *coff_symbol_ptr = |
| 1279 | coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); |
| 1280 | if (coff_symbol_ptr == (coff_symbol_type *)NULL) { |
| 1281 | /* |
| 1282 | This symbol has no coff information in it, it will take up |
| 1283 | only one slot in the output symbol table |
| 1284 | */ |
| 1285 | native_index++; |
| 1286 | } |
| 1287 | else { |
| 1288 | struct internal_syment *syment = coff_symbol_ptr->native; |
| 1289 | if (syment == (struct internal_syment *)NULL) { |
| 1290 | native_index++; |
| 1291 | } |
| 1292 | else { |
| 1293 | /* Normalize the symbol flags */ |
| 1294 | if (coff_symbol_ptr->symbol.flags & BSF_FORT_COMM) { |
| 1295 | /* a common symbol is undefined with a value */ |
| 1296 | syment->n_scnum = N_UNDEF; |
| 1297 | syment->n_value = coff_symbol_ptr->symbol.value; |
| 1298 | } |
| 1299 | else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) { |
| 1300 | syment->n_value = coff_symbol_ptr->symbol.value; |
| 1301 | } |
| 1302 | else if (coff_symbol_ptr->symbol.flags & BSF_UNDEFINED) { |
| 1303 | syment->n_scnum = N_UNDEF; |
| 1304 | syment->n_value = 0; |
| 1305 | } |
| 1306 | else if (coff_symbol_ptr->symbol.flags & BSF_ABSOLUTE) { |
| 1307 | syment->n_scnum = N_ABS; |
| 1308 | syment->n_value = coff_symbol_ptr->symbol.value; |
| 1309 | } |
| 1310 | else { |
| 1311 | syment->n_scnum = |
| 1312 | coff_symbol_ptr->symbol.section->output_section->index+1; |
| 1313 | |
| 1314 | syment->n_value = |
| 1315 | coff_symbol_ptr->symbol.value + |
| 1316 | coff_symbol_ptr->symbol.section->output_offset + |
| 1317 | coff_symbol_ptr->symbol.section->output_section->vma; |
| 1318 | } |
| 1319 | |
| 1320 | |
| 1321 | /* If this symbol ties up something then do it */ |
| 1322 | |
| 1323 | if (syment->n_sclass == C_FILE && last_file != (struct internal_syment *)NULL) |
| 1324 | { |
| 1325 | last_file->n_value = native_index; |
| 1326 | } |
| 1327 | else if ((syment->n_sclass == C_EXT |
| 1328 | || syment->n_sclass == C_STAT |
| 1329 | #ifdef C_LEAFEXT |
| 1330 | || syment->n_sclass == C_LEAFEXT |
| 1331 | || syment->n_sclass == C_LEAFSTAT |
| 1332 | #endif |
| 1333 | ) |
| 1334 | && last_fcn != (struct internal_syment *)NULL) |
| 1335 | { |
| 1336 | union internal_auxent *auxent = (union internal_auxent *)(last_fcn+1); |
| 1337 | auxent->x_sym.x_fcnary.x_fcn.x_endndx.l = native_index; |
| 1338 | last_fcn = (struct internal_syment *)NULL; |
| 1339 | |
| 1340 | } |
| 1341 | else if (syment->n_sclass == C_EOS && last_tagndx != (struct internal_syment*)NULL) |
| 1342 | { |
| 1343 | union internal_auxent *auxent = (union internal_auxent *)(last_tagndx+1); |
| 1344 | /* Remember that we keep the native index in the offset |
| 1345 | so patch the beginning of the struct to point to this |
| 1346 | */ |
| 1347 | /*if (last_ |
| 1348 | auxent->x_sym.x_tagndx = last_tagndx->_n._n_n._n_offset;*/ |
| 1349 | auxent->x_sym.x_fcnary.x_fcn.x_endndx.l = syment->n_numaux + 1 + native_index; |
| 1350 | /* Now point the eos to the structure */ |
| 1351 | auxent = (union internal_auxent *)(syment+1); |
| 1352 | auxent->x_sym.x_tagndx.l = last_tagndx->_n._n_n._n_offset; |
| 1353 | } |
| 1354 | else if (syment->n_sclass == C_BLOCK |
| 1355 | && coff_symbol_ptr->symbol.name[1] == 'e') |
| 1356 | { |
| 1357 | union internal_auxent *auxent = (union internal_auxent *)((*(--last_block))+1); |
| 1358 | auxent->x_sym.x_fcnary.x_fcn.x_endndx.l = native_index + syment->n_numaux + 1; |
| 1359 | } |
| 1360 | if (syment->n_sclass == C_EXT |
| 1361 | && !ISFCN(syment->n_type) |
| 1362 | && first_time == true |
| 1363 | && last_file != (struct internal_syment *)NULL) { |
| 1364 | /* This is the first external symbol seen which isn't a |
| 1365 | function place it in the last .file entry */ |
| 1366 | last_file->n_value = native_index; |
| 1367 | first_time = false; |
| 1368 | } |
| 1369 | #ifdef C_LEAFPROC |
| 1370 | if (syment->n_sclass == C_LEAFPROC && |
| 1371 | syment->n_numaux == 2) { |
| 1372 | union internal_auxent *auxent = (union internal_auxent *)(syment+2); |
| 1373 | /* This is the definition of a leaf proc, we'll relocate the |
| 1374 | address */ |
| 1375 | auxent->x_bal.x_balntry = |
| 1376 | coff_symbol_ptr->symbol.section->output_offset + |
| 1377 | coff_symbol_ptr->symbol.section->output_section->vma + |
| 1378 | auxent->x_bal.x_balntry ; |
| 1379 | } |
| 1380 | #endif |
| 1381 | /* If this symbol needs to be tied up then remember some facts */ |
| 1382 | if (syment->n_sclass == C_FILE) |
| 1383 | { |
| 1384 | last_file = syment; |
| 1385 | } |
| 1386 | if (syment->n_numaux != 0) { |
| 1387 | /* |
| 1388 | If this symbol would like to point to something in the |
| 1389 | future then remember where it is |
| 1390 | */ |
| 1391 | if (uses_x_sym_x_tagndx_p(bfd_ptr, syment)) { |
| 1392 | /* |
| 1393 | If this is a ref to a structure then we'll tie it up |
| 1394 | now - there are never any forward refs for one |
| 1395 | */ |
| 1396 | if (syment->n_sclass == C_STRTAG || |
| 1397 | syment->n_sclass == C_ENTAG || |
| 1398 | syment->n_sclass == C_UNTAG) { |
| 1399 | last_tagndx = syment; |
| 1400 | } |
| 1401 | else { |
| 1402 | /* |
| 1403 | This is a ref to a structure - the structure must |
| 1404 | have been defined within the same file, and previous |
| 1405 | to this point, so we can deduce the new tagndx |
| 1406 | directly. |
| 1407 | */ |
| 1408 | union internal_auxent *auxent = (union internal_auxent *)(syment+1); |
| 1409 | bfd *bfd_ptr = coff_symbol_ptr->symbol.the_bfd; |
| 1410 | struct internal_syment *base = obj_raw_syments(bfd_ptr); |
| 1411 | /* auxent->x_sym.x_tagndx = base[auxent->x_sym.x_tagndx]._n._n_n._n_offset;*/ |
| 1412 | |
| 1413 | |
| 1414 | } |
| 1415 | } |
| 1416 | if (ISFCN(syment->n_type)) { |
| 1417 | last_fcn = syment; |
| 1418 | } |
| 1419 | if (syment->n_sclass == C_BLOCK |
| 1420 | && coff_symbol_ptr->symbol.name[1] == 'b') |
| 1421 | { |
| 1422 | *last_block++ = syment; |
| 1423 | } |
| 1424 | } |
| 1425 | syment->_n._n_n._n_offset = native_index; |
| 1426 | native_index = native_index + 1 + syment->n_numaux; |
| 1427 | } |
| 1428 | } |
| 1429 | } |
| 1430 | } |
| 1431 | |
| 1432 | |
| 1433 | #endif |
| 1434 | static int string_size; |
| 1435 | static void |
| 1436 | DEFUN(coff_fix_symbol_name,(abfd, symbol, native), |
| 1437 | bfd *abfd AND |
| 1438 | asymbol *symbol AND |
| 1439 | combined_entry_type *native) |
| 1440 | { |
| 1441 | unsigned int name_length; |
| 1442 | union internal_auxent *auxent; |
| 1443 | char * name = ( char *)(symbol->name); |
| 1444 | |
| 1445 | if (name == (char *) NULL) { |
| 1446 | /* |
| 1447 | coff symbols always have names, so we'll make one up |
| 1448 | */ |
| 1449 | symbol->name = "strange"; |
| 1450 | name = (char *)symbol->name; |
| 1451 | } |
| 1452 | name_length = strlen(name); |
| 1453 | |
| 1454 | if (native->u.syment.n_sclass == C_FILE) { |
| 1455 | strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN); |
| 1456 | auxent = &(native+1)->u.auxent; |
| 1457 | |
| 1458 | #ifdef COFF_LONG_FILENAMES |
| 1459 | if (name_length <= FILNMLEN) { |
| 1460 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); |
| 1461 | } |
| 1462 | else { |
| 1463 | auxent->x_file.x_n.x_offset = string_size + 4; |
| 1464 | auxent->x_file.x_n.x_zeroes = 0; |
| 1465 | string_size += name_length + 1; |
| 1466 | } |
| 1467 | #else |
| 1468 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); |
| 1469 | if (name_length > FILNMLEN) { |
| 1470 | name[FILNMLEN] = '\0'; |
| 1471 | } |
| 1472 | #endif |
| 1473 | } |
| 1474 | else |
| 1475 | { /* NOT A C_FILE SYMBOL */ |
| 1476 | if (name_length <= SYMNMLEN) { |
| 1477 | /* This name will fit into the symbol neatly */ |
| 1478 | strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN); |
| 1479 | } |
| 1480 | else { |
| 1481 | native->u.syment._n._n_n._n_offset = string_size + 4; |
| 1482 | native->u.syment._n._n_n._n_zeroes = 0; |
| 1483 | string_size += name_length + 1; |
| 1484 | } |
| 1485 | } |
| 1486 | } |
| 1487 | |
| 1488 | |
| 1489 | |
| 1490 | static unsigned int |
| 1491 | DEFUN(coff_write_symbol,(abfd, symbol, native, written), |
| 1492 | bfd *abfd AND |
| 1493 | asymbol *symbol AND |
| 1494 | combined_entry_type *native AND |
| 1495 | unsigned int written) |
| 1496 | { |
| 1497 | unsigned int numaux = native->u.syment.n_numaux; |
| 1498 | int type = native->u.syment.n_type; |
| 1499 | int class = native->u.syment.n_sclass; |
| 1500 | SYMENT buf; |
| 1501 | unsigned int j; |
| 1502 | |
| 1503 | coff_fix_symbol_name(abfd, symbol, native); |
| 1504 | coff_swap_sym_out(abfd, &native->u.syment, &buf); |
| 1505 | bfd_write((PTR)& buf, 1, SYMESZ, abfd); |
| 1506 | for (j = 0; j != native->u.syment.n_numaux; j++) |
| 1507 | { |
| 1508 | AUXENT buf1; |
| 1509 | coff_swap_aux_out(abfd, |
| 1510 | &( (native + j + 1)->u.auxent), type, class, &buf1); |
| 1511 | bfd_write((PTR) (&buf1), 1, AUXESZ, abfd); |
| 1512 | } |
| 1513 | /* |
| 1514 | Reuse somewhere in the symbol to keep the index |
| 1515 | */ |
| 1516 | set_index(symbol, written); |
| 1517 | return written + 1 + numaux; |
| 1518 | } |
| 1519 | |
| 1520 | |
| 1521 | static unsigned int |
| 1522 | DEFUN(coff_write_alien_symbol,(abfd, symbol, written), |
| 1523 | bfd *abfd AND |
| 1524 | asymbol *symbol AND |
| 1525 | unsigned int written) |
| 1526 | { |
| 1527 | /* |
| 1528 | This symbol has been created by the loader, or come from a non |
| 1529 | coff format. It has no native element to inherit, make our |
| 1530 | own |
| 1531 | */ |
| 1532 | combined_entry_type *native; |
| 1533 | combined_entry_type dummy; |
| 1534 | native = &dummy; |
| 1535 | native->u.syment.n_type = T_NULL; |
| 1536 | #ifdef I960 |
| 1537 | native->u.syment.n_flags = 0; |
| 1538 | #endif |
| 1539 | if (symbol->flags & BSF_ABSOLUTE) { |
| 1540 | native->u.syment.n_scnum = N_ABS; |
| 1541 | native->u.syment.n_value = symbol->value; |
| 1542 | } |
| 1543 | else if (symbol->flags & (BSF_UNDEFINED | BSF_FORT_COMM)) { |
| 1544 | native->u.syment.n_scnum = N_UNDEF; |
| 1545 | native->u.syment.n_value = symbol->value; |
| 1546 | } |
| 1547 | else if (symbol->flags & BSF_DEBUGGING) { |
| 1548 | /* |
| 1549 | remove name so it doesn't take up any space |
| 1550 | */ |
| 1551 | symbol->name = ""; |
| 1552 | } |
| 1553 | else { |
| 1554 | native->u.syment.n_scnum = symbol->section->output_section->index + |
| 1555 | 1; |
| 1556 | native->u.syment.n_value = symbol->value + |
| 1557 | symbol->section->output_section->vma + |
| 1558 | symbol->section->output_offset; |
| 1559 | #ifdef I960 |
| 1560 | /* Copy the any flags from the the file hdr into the symbol */ |
| 1561 | { |
| 1562 | coff_symbol_type *c = coff_symbol_from(abfd, symbol); |
| 1563 | if (c != (coff_symbol_type *)NULL) { |
| 1564 | native->u.syment.n_flags = c->symbol.the_bfd->flags; |
| 1565 | } |
| 1566 | } |
| 1567 | #endif |
| 1568 | } |
| 1569 | |
| 1570 | #ifdef HASPAD1 |
| 1571 | native->u.syment.pad1[0] = 0; |
| 1572 | native->u.syment.pad1[0] = 0; |
| 1573 | #endif |
| 1574 | |
| 1575 | native->u.syment.n_type = 0; |
| 1576 | if (symbol->flags & BSF_LOCAL) |
| 1577 | native->u.syment.n_sclass = C_STAT; |
| 1578 | else |
| 1579 | native->u.syment.n_sclass = C_EXT; |
| 1580 | native->u.syment.n_numaux = 0; |
| 1581 | |
| 1582 | return coff_write_symbol(abfd, symbol, native, written); |
| 1583 | } |
| 1584 | |
| 1585 | static unsigned int |
| 1586 | DEFUN(coff_write_native_symbol,(abfd, symbol, written), |
| 1587 | bfd *abfd AND |
| 1588 | coff_symbol_type *symbol AND |
| 1589 | unsigned int written) |
| 1590 | { |
| 1591 | /* |
| 1592 | Does this symbol have an ascociated line number - if so then |
| 1593 | make it remember this symbol index. Also tag the auxent of |
| 1594 | this symbol to point to the right place in the lineno table |
| 1595 | */ |
| 1596 | combined_entry_type *native = symbol->native; |
| 1597 | |
| 1598 | alent *lineno = symbol->lineno; |
| 1599 | |
| 1600 | if (lineno) { |
| 1601 | unsigned int count = 0; |
| 1602 | lineno[count].u.offset = written; |
| 1603 | if (native->u.syment.n_numaux) { |
| 1604 | union internal_auxent *a = &((native+1)->u.auxent); |
| 1605 | |
| 1606 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = |
| 1607 | symbol->symbol.section->output_section->moving_line_filepos; |
| 1608 | } |
| 1609 | /* |
| 1610 | And count and relocate all other linenumbers |
| 1611 | */ |
| 1612 | count++; |
| 1613 | while (lineno[count].line_number) { |
| 1614 | lineno[count].u.offset += |
| 1615 | symbol->symbol.section->output_section->vma + |
| 1616 | symbol->symbol.section->output_offset; |
| 1617 | count++; |
| 1618 | } |
| 1619 | symbol->symbol.section->output_section->moving_line_filepos += |
| 1620 | count * LINESZ; |
| 1621 | |
| 1622 | } |
| 1623 | return coff_write_symbol(abfd, &( symbol->symbol), native,written); |
| 1624 | } |
| 1625 | |
| 1626 | static void |
| 1627 | DEFUN(coff_write_symbols,(abfd), |
| 1628 | bfd *abfd) |
| 1629 | { |
| 1630 | unsigned int i; |
| 1631 | unsigned int limit = bfd_get_symcount(abfd); |
| 1632 | unsigned int written = 0; |
| 1633 | |
| 1634 | asymbol **p; |
| 1635 | |
| 1636 | string_size = 0; |
| 1637 | |
| 1638 | |
| 1639 | /* Seek to the right place */ |
| 1640 | bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET); |
| 1641 | |
| 1642 | /* Output all the symbols we have */ |
| 1643 | |
| 1644 | written = 0; |
| 1645 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) |
| 1646 | { |
| 1647 | asymbol *symbol = *p; |
| 1648 | coff_symbol_type *c_symbol = coff_symbol_from(abfd, symbol); |
| 1649 | |
| 1650 | |
| 1651 | |
| 1652 | if (c_symbol == (coff_symbol_type *) NULL || |
| 1653 | c_symbol->native == (combined_entry_type *)NULL) |
| 1654 | { |
| 1655 | written = coff_write_alien_symbol(abfd, symbol, written); |
| 1656 | } |
| 1657 | else |
| 1658 | { |
| 1659 | written = coff_write_native_symbol(abfd, c_symbol, written); |
| 1660 | } |
| 1661 | |
| 1662 | } |
| 1663 | |
| 1664 | bfd_get_symcount(abfd) = written; |
| 1665 | |
| 1666 | /* Now write out strings */ |
| 1667 | |
| 1668 | if (string_size != 0) |
| 1669 | { |
| 1670 | unsigned int size = string_size + 4; |
| 1671 | char buffer[4]; |
| 1672 | bfd_h_put_32(abfd, size, buffer); |
| 1673 | bfd_write((PTR) buffer, 1, sizeof(buffer), abfd); |
| 1674 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) |
| 1675 | { |
| 1676 | asymbol *q = *p; |
| 1677 | size_t name_length = strlen(q->name); |
| 1678 | int maxlen; |
| 1679 | coff_symbol_type* c_symbol = coff_symbol_from(abfd, q); |
| 1680 | maxlen = ((c_symbol != NULL && c_symbol->native != NULL) && |
| 1681 | (c_symbol->native->u.syment.n_sclass == C_FILE)) ? |
| 1682 | FILNMLEN : SYMNMLEN; |
| 1683 | |
| 1684 | if (name_length > maxlen) { |
| 1685 | bfd_write((PTR) (q->name), 1, name_length + 1, abfd); |
| 1686 | } |
| 1687 | } |
| 1688 | } |
| 1689 | else { |
| 1690 | /* We would normally not write anything here, but we'll write |
| 1691 | out 4 so that any stupid coff reader which tries to read |
| 1692 | the string table even when there isn't one won't croak. |
| 1693 | */ |
| 1694 | |
| 1695 | uint32e_type size = 4; |
| 1696 | size = size; |
| 1697 | bfd_write((PTR)&size, 1, sizeof(size), abfd); |
| 1698 | |
| 1699 | } |
| 1700 | } |
| 1701 | #endif /* NO_COFF_SYMBOLS */ |
| 1702 | |
| 1703 | /*doc* |
| 1704 | @subsubsection Writing Relocations |
| 1705 | To write a relocations, all the back end does is step though the |
| 1706 | canonical relocation table, and create an @code{internal_reloc}. The |
| 1707 | symbol index to use is removed from the @code{offset} field in the |
| 1708 | symbol table supplied, the address comes directly from the sum of the |
| 1709 | section base address and the relocation offset and the type is dug |
| 1710 | directly from the howto field. |
| 1711 | |
| 1712 | Then the @code{internal_reloc} is swapped into the shape of an |
| 1713 | @code{external_reloc} and written out to disk. |
| 1714 | */ |
| 1715 | |
| 1716 | static void |
| 1717 | DEFUN(coff_write_relocs,(abfd), |
| 1718 | bfd *abfd) |
| 1719 | { |
| 1720 | asection *s; |
| 1721 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) { |
| 1722 | unsigned int i; |
| 1723 | struct external_reloc dst; |
| 1724 | |
| 1725 | arelent **p = s->orelocation; |
| 1726 | bfd_seek(abfd, s->rel_filepos, SEEK_SET); |
| 1727 | for (i = 0; i < s->reloc_count; i++) { |
| 1728 | struct internal_reloc n; |
| 1729 | arelent *q = p[i]; |
| 1730 | memset((PTR)&n, 0, sizeof(n)); |
| 1731 | n.r_vaddr = q->address + s->vma; |
| 1732 | if (q->sym_ptr_ptr) { |
| 1733 | n.r_symndx = get_index((*(q->sym_ptr_ptr))); |
| 1734 | } |
| 1735 | #ifdef SELECT_RELOC |
| 1736 | /* Work out reloc type from what is required */ |
| 1737 | SELECT_RELOC(n.r_type, q->howto); |
| 1738 | #else |
| 1739 | n.r_type = q->howto->type; |
| 1740 | #endif |
| 1741 | bfd_swap_reloc_out(abfd, &n, &dst); |
| 1742 | bfd_write((PTR) &n, 1, RELSZ, abfd); |
| 1743 | } |
| 1744 | } |
| 1745 | } |
| 1746 | |
| 1747 | #ifndef NO_COFF_LINENOS |
| 1748 | |
| 1749 | static void |
| 1750 | DEFUN(coff_write_linenumbers,(abfd), |
| 1751 | bfd *abfd) |
| 1752 | { |
| 1753 | asection *s; |
| 1754 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) { |
| 1755 | if (s->lineno_count) { |
| 1756 | asymbol **q = abfd->outsymbols; |
| 1757 | bfd_seek(abfd, s->line_filepos, SEEK_SET); |
| 1758 | /* Find all the linenumbers in this section */ |
| 1759 | while (*q) { |
| 1760 | asymbol *p = *q; |
| 1761 | alent *l = BFD_SEND(p->the_bfd, _get_lineno, (p->the_bfd, p)); |
| 1762 | if (l) { |
| 1763 | /* Found a linenumber entry, output */ |
| 1764 | struct internal_lineno out; |
| 1765 | LINENO buff; |
| 1766 | memset( (PTR)&out, 0, sizeof(out)); |
| 1767 | out.l_lnno = 0; |
| 1768 | out.l_addr.l_symndx = l->u.offset; |
| 1769 | coff_swap_lineno_out(abfd, &out, &buff); |
| 1770 | bfd_write((PTR) &buff, 1, LINESZ, abfd); |
| 1771 | l++; |
| 1772 | while (l->line_number) { |
| 1773 | out.l_lnno = l->line_number; |
| 1774 | out.l_addr.l_symndx = l->u.offset; |
| 1775 | coff_swap_lineno_out(abfd, &out, &buff); |
| 1776 | bfd_write((PTR) &buff, 1, LINESZ, abfd); |
| 1777 | l++; |
| 1778 | } |
| 1779 | } |
| 1780 | q++; |
| 1781 | } |
| 1782 | } |
| 1783 | } |
| 1784 | } |
| 1785 | |
| 1786 | static alent * |
| 1787 | DEFUN(coff_get_lineno,(ignore_abfd, symbol), |
| 1788 | bfd *ignore_abfd AND |
| 1789 | asymbol *symbol) |
| 1790 | { |
| 1791 | return coffsymbol(symbol)->lineno; |
| 1792 | } |
| 1793 | |
| 1794 | #endif /* NO_COFF_LINENOS */ |
| 1795 | |
| 1796 | static asymbol * |
| 1797 | coff_make_empty_symbol(abfd) |
| 1798 | bfd *abfd; |
| 1799 | { |
| 1800 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); |
| 1801 | if (new == NULL) { |
| 1802 | bfd_error = no_memory; |
| 1803 | return (NULL); |
| 1804 | } /* on error */ |
| 1805 | new->native = 0; |
| 1806 | new->lineno = (alent *) NULL; |
| 1807 | new->symbol.the_bfd = abfd; |
| 1808 | return &new->symbol; |
| 1809 | } |
| 1810 | |
| 1811 | #ifndef NO_COFF_SYMBOLS |
| 1812 | |
| 1813 | static void |
| 1814 | DEFUN(coff_print_symbol,(ignore_abfd, filep, symbol, how), |
| 1815 | bfd *ignore_abfd AND |
| 1816 | PTR filep AND |
| 1817 | asymbol *symbol AND |
| 1818 | bfd_print_symbol_enum_type how) |
| 1819 | { |
| 1820 | FILE *file = (FILE *)filep; |
| 1821 | switch (how) { |
| 1822 | case bfd_print_symbol_name_enum: |
| 1823 | fprintf(file, "%s", symbol->name); |
| 1824 | break; |
| 1825 | case bfd_print_symbol_type_enum: |
| 1826 | fprintf(file, "coff %lx %lx", (unsigned long) coffsymbol(symbol)->native, |
| 1827 | (unsigned long) coffsymbol(symbol)->lineno); |
| 1828 | break; |
| 1829 | case bfd_print_symbol_all_enum: |
| 1830 | { |
| 1831 | CONST char *section_name = symbol->section == (asection *) NULL ? |
| 1832 | "*abs" : symbol->section->name; |
| 1833 | bfd_print_symbol_vandf((PTR) file, symbol); |
| 1834 | |
| 1835 | fprintf(file, " %-5s %s %s %s", |
| 1836 | section_name, |
| 1837 | coffsymbol(symbol)->native ? "n" : "g", |
| 1838 | coffsymbol(symbol)->lineno ? "l" : " ", |
| 1839 | symbol->name); |
| 1840 | } |
| 1841 | |
| 1842 | |
| 1843 | break; |
| 1844 | } |
| 1845 | } |
| 1846 | |
| 1847 | #endif /* NO_COFF_SYMBOLS */ |
| 1848 | |
| 1849 | /* Set flags and magic number of a coff file from architecture and machine |
| 1850 | type. Result is true if we can represent the arch&type, false if not. */ |
| 1851 | |
| 1852 | static boolean |
| 1853 | DEFUN(coff_set_flags,(abfd, magicp, flagsp), |
| 1854 | bfd *abfd AND |
| 1855 | unsigned *magicp AND |
| 1856 | unsigned short *flagsp) |
| 1857 | { |
| 1858 | |
| 1859 | switch (abfd->obj_arch) { |
| 1860 | |
| 1861 | #ifdef I960ROMAGIC |
| 1862 | |
| 1863 | case bfd_arch_i960: |
| 1864 | |
| 1865 | { |
| 1866 | unsigned flags; |
| 1867 | *magicp = I960ROMAGIC; |
| 1868 | /* |
| 1869 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : |
| 1870 | I960RWMAGIC); FIXME??? |
| 1871 | */ |
| 1872 | switch (abfd->obj_machine) { |
| 1873 | case bfd_mach_i960_core: |
| 1874 | flags = F_I960CORE; |
| 1875 | break; |
| 1876 | case bfd_mach_i960_kb_sb: |
| 1877 | flags = F_I960KB; |
| 1878 | break; |
| 1879 | case bfd_mach_i960_mc: |
| 1880 | flags = F_I960MC; |
| 1881 | break; |
| 1882 | case bfd_mach_i960_xa: |
| 1883 | flags = F_I960XA; |
| 1884 | break; |
| 1885 | case bfd_mach_i960_ca: |
| 1886 | flags = F_I960CA; |
| 1887 | break; |
| 1888 | case bfd_mach_i960_ka_sa: |
| 1889 | flags = F_I960KA; |
| 1890 | break; |
| 1891 | default: |
| 1892 | return false; |
| 1893 | } |
| 1894 | *flagsp = flags; |
| 1895 | return true; |
| 1896 | } |
| 1897 | break; |
| 1898 | #endif |
| 1899 | #ifdef MIPS |
| 1900 | case bfd_arch_mips: |
| 1901 | *magicp = MIPS_MAGIC_2; |
| 1902 | return true; |
| 1903 | break; |
| 1904 | #endif |
| 1905 | #ifdef I386MAGIC |
| 1906 | case bfd_arch_i386: |
| 1907 | *magicp = I386MAGIC; |
| 1908 | return true; |
| 1909 | #endif |
| 1910 | #ifdef MC68MAGIC |
| 1911 | case bfd_arch_m68k: |
| 1912 | *magicp = MC68MAGIC; |
| 1913 | return true; |
| 1914 | #endif |
| 1915 | |
| 1916 | #ifdef MC88MAGIC |
| 1917 | case bfd_arch_m88k: |
| 1918 | *magicp = MC88OMAGIC; |
| 1919 | return true; |
| 1920 | break; |
| 1921 | #endif |
| 1922 | |
| 1923 | #ifdef A29K_MAGIC_BIG |
| 1924 | case bfd_arch_a29k: |
| 1925 | if (abfd->xvec->byteorder_big_p) |
| 1926 | *magicp = A29K_MAGIC_BIG; |
| 1927 | else |
| 1928 | *magicp = A29K_MAGIC_LITTLE; |
| 1929 | return true; |
| 1930 | break; |
| 1931 | #endif |
| 1932 | |
| 1933 | default: /* Unknown architecture */ |
| 1934 | /* return false; -- fall through to "return false" below, to avoid |
| 1935 | "statement never reached" errors on the one below. */ |
| 1936 | break; |
| 1937 | } |
| 1938 | |
| 1939 | return false; |
| 1940 | } |
| 1941 | |
| 1942 | |
| 1943 | static boolean |
| 1944 | DEFUN(coff_set_arch_mach,(abfd, arch, machine), |
| 1945 | bfd *abfd AND |
| 1946 | enum bfd_architecture arch AND |
| 1947 | unsigned long machine) |
| 1948 | { |
| 1949 | unsigned dummy1; |
| 1950 | unsigned short dummy2; |
| 1951 | abfd->obj_arch = arch; |
| 1952 | abfd->obj_machine = machine; |
| 1953 | if (arch != bfd_arch_unknown && |
| 1954 | coff_set_flags(abfd, &dummy1, &dummy2) != true) |
| 1955 | return false; /* We can't represent this type */ |
| 1956 | return true; /* We're easy ... */ |
| 1957 | } |
| 1958 | |
| 1959 | |
| 1960 | /* Calculate the file position for each section. */ |
| 1961 | |
| 1962 | static void |
| 1963 | DEFUN(coff_compute_section_file_positions,(abfd), |
| 1964 | bfd *abfd) |
| 1965 | { |
| 1966 | asection *current; |
| 1967 | file_ptr sofar = FILHSZ; |
| 1968 | if (bfd_get_start_address(abfd)) { |
| 1969 | /* |
| 1970 | A start address may have been added to the original file. In this |
| 1971 | case it will need an optional header to record it. |
| 1972 | */ |
| 1973 | abfd->flags |= EXEC_P; |
| 1974 | } |
| 1975 | if (abfd->flags & EXEC_P) |
| 1976 | sofar += AOUTSZ; |
| 1977 | |
| 1978 | |
| 1979 | sofar += abfd->section_count * SCNHSZ; |
| 1980 | for (current = abfd->sections; |
| 1981 | current != (asection *)NULL; |
| 1982 | current = current->next) { |
| 1983 | /* Only deal with sections which have contents */ |
| 1984 | if (!(current->flags & SEC_HAS_CONTENTS)) |
| 1985 | continue; |
| 1986 | |
| 1987 | /* Align the sections in the file to the same boundary on |
| 1988 | which they are aligned in virtual memory. I960 doesn't |
| 1989 | do this (FIXME) so we can stay in sync with Intel. 960 |
| 1990 | doesn't yet page from files... */ |
| 1991 | #ifndef I960 |
| 1992 | sofar = ALIGN(sofar, 1 << current->alignment_power); |
| 1993 | #endif |
| 1994 | /* FIXME, in demand paged files, the low order bits of the file |
| 1995 | offset must match the low order bits of the virtual address. |
| 1996 | "Low order" is apparently implementation defined. Add code |
| 1997 | here to round sofar up to match the virtual address. */ |
| 1998 | |
| 1999 | current->filepos = sofar; |
| 2000 | sofar += current->size; |
| 2001 | } |
| 2002 | obj_relocbase(abfd) = sofar; |
| 2003 | } |
| 2004 | |
| 2005 | |
| 2006 | |
| 2007 | |
| 2008 | /* SUPPRESS 558 */ |
| 2009 | /* SUPPRESS 529 */ |
| 2010 | static boolean |
| 2011 | DEFUN(coff_write_object_contents,(abfd), |
| 2012 | bfd *abfd) |
| 2013 | { |
| 2014 | asection *current; |
| 2015 | boolean hasrelocs = false; |
| 2016 | boolean haslinno = false; |
| 2017 | file_ptr reloc_base; |
| 2018 | file_ptr lineno_base; |
| 2019 | file_ptr sym_base; |
| 2020 | file_ptr scn_base; |
| 2021 | file_ptr data_base; |
| 2022 | unsigned long reloc_size = 0; |
| 2023 | unsigned long lnno_size = 0; |
| 2024 | asection *text_sec = NULL; |
| 2025 | asection *data_sec = NULL; |
| 2026 | asection *bss_sec = NULL; |
| 2027 | |
| 2028 | struct internal_filehdr internal_f; |
| 2029 | struct internal_aouthdr internal_a; |
| 2030 | |
| 2031 | |
| 2032 | bfd_error = system_call_error; |
| 2033 | |
| 2034 | |
| 2035 | if(abfd->output_has_begun == false) { |
| 2036 | coff_compute_section_file_positions(abfd); |
| 2037 | } |
| 2038 | |
| 2039 | if (abfd->sections != (asection *)NULL) { |
| 2040 | scn_base = abfd->sections->filepos; |
| 2041 | } |
| 2042 | else { |
| 2043 | scn_base = 0; |
| 2044 | } |
| 2045 | if (bfd_seek(abfd, scn_base, SEEK_SET) != 0) |
| 2046 | return false; |
| 2047 | reloc_base = obj_relocbase(abfd); |
| 2048 | |
| 2049 | /* Make a pass through the symbol table to count line number entries and |
| 2050 | put them into the correct asections */ |
| 2051 | |
| 2052 | #ifndef NO_COFF_LINENOS |
| 2053 | coff_count_linenumbers(abfd); |
| 2054 | #endif |
| 2055 | data_base = scn_base; |
| 2056 | |
| 2057 | /* Work out the size of the reloc and linno areas */ |
| 2058 | |
| 2059 | for (current = abfd->sections; current != NULL; current = current->next) { |
| 2060 | reloc_size += current->reloc_count * RELSZ; |
| 2061 | #ifndef NO_COFF_LINENOS |
| 2062 | lnno_size += current->lineno_count * LINESZ; |
| 2063 | #endif |
| 2064 | data_base += SCNHSZ; |
| 2065 | } |
| 2066 | |
| 2067 | lineno_base = reloc_base + reloc_size; |
| 2068 | sym_base = lineno_base + lnno_size; |
| 2069 | |
| 2070 | /* Indicate in each section->line_filepos its actual file address */ |
| 2071 | for (current = abfd->sections; current != NULL; current = current->next) { |
| 2072 | if (current->lineno_count) { |
| 2073 | current->line_filepos = lineno_base; |
| 2074 | current->moving_line_filepos = lineno_base; |
| 2075 | #ifndef NO_COFF_LINENOS |
| 2076 | lineno_base += current->lineno_count * LINESZ; |
| 2077 | #endif |
| 2078 | } |
| 2079 | else { |
| 2080 | current->line_filepos = 0; |
| 2081 | } |
| 2082 | if (current->reloc_count) { |
| 2083 | current->rel_filepos = reloc_base; |
| 2084 | reloc_base += current->reloc_count * sizeof(struct internal_reloc); |
| 2085 | } |
| 2086 | else { |
| 2087 | current->rel_filepos = 0; |
| 2088 | } |
| 2089 | } |
| 2090 | |
| 2091 | /* Write section headers to the file. */ |
| 2092 | |
| 2093 | bfd_seek(abfd, |
| 2094 | (file_ptr) ((abfd->flags & EXEC_P) ? |
| 2095 | (FILHSZ + AOUTSZ) : FILHSZ), |
| 2096 | SEEK_SET); |
| 2097 | |
| 2098 | { |
| 2099 | #if 0 |
| 2100 | unsigned int pad = abfd->flags & D_PAGED ? data_base : 0; |
| 2101 | #endif |
| 2102 | unsigned int pad = 0; |
| 2103 | |
| 2104 | for (current = abfd->sections; current != NULL; current = current->next) { |
| 2105 | struct internal_scnhdr section; |
| 2106 | strncpy(&(section.s_name[0]), current->name, 8); |
| 2107 | section.s_vaddr = current->vma + pad; |
| 2108 | section.s_paddr = current->vma + pad; |
| 2109 | section.s_size = current->size - pad; |
| 2110 | /* |
| 2111 | If this section has no size or is unloadable then the scnptr |
| 2112 | will be 0 too |
| 2113 | */ |
| 2114 | if (current->size - pad == 0 || |
| 2115 | (current->flags & SEC_LOAD) == 0) { |
| 2116 | section.s_scnptr = 0; |
| 2117 | |
| 2118 | } |
| 2119 | else { |
| 2120 | section.s_scnptr = current->filepos; |
| 2121 | } |
| 2122 | section.s_relptr = current->rel_filepos; |
| 2123 | section.s_lnnoptr = current->line_filepos; |
| 2124 | section.s_nreloc = current->reloc_count; |
| 2125 | section.s_nlnno = current->lineno_count; |
| 2126 | if (current->reloc_count != 0) |
| 2127 | hasrelocs = true; |
| 2128 | if (current->lineno_count != 0) |
| 2129 | haslinno = true; |
| 2130 | |
| 2131 | section.s_flags = sec_to_styp_flags(current->name,current->flags); |
| 2132 | |
| 2133 | if (!strcmp(current->name, _TEXT)) { |
| 2134 | text_sec = current; |
| 2135 | } else if (!strcmp(current->name, _DATA)) { |
| 2136 | data_sec = current; |
| 2137 | } else if (!strcmp(current->name, _BSS)) { |
| 2138 | bss_sec = current; |
| 2139 | } |
| 2140 | |
| 2141 | #ifdef I960 |
| 2142 | section.s_align = (current->alignment_power |
| 2143 | ? 1 << current->alignment_power |
| 2144 | : 0); |
| 2145 | |
| 2146 | #endif |
| 2147 | { |
| 2148 | SCNHDR buff; |
| 2149 | |
| 2150 | swap_scnhdr_out(abfd, §ion, &buff); |
| 2151 | bfd_write((PTR) (&buff), 1, SCNHSZ, abfd); |
| 2152 | |
| 2153 | } |
| 2154 | pad = 0; |
| 2155 | } |
| 2156 | } |
| 2157 | |
| 2158 | /* OK, now set up the filehdr... */ |
| 2159 | internal_f.f_nscns = abfd->section_count; |
| 2160 | /* |
| 2161 | We will NOT put a fucking timestamp in the header here. Every time you |
| 2162 | put it back, I will come in and take it out again. I'm sorry. This |
| 2163 | field does not belong here. We fill it with a 0 so it compares the |
| 2164 | same but is not a reasonable time. -- gnu@cygnus.com |
| 2165 | */ |
| 2166 | /* |
| 2167 | Well, I like it, so I'm conditionally compiling it in. |
| 2168 | steve@cygnus.com |
| 2169 | */ |
| 2170 | #ifdef COFF_TIMESTAMP |
| 2171 | internal_f.f_timdat = time(0); |
| 2172 | #else |
| 2173 | internal_f.f_timdat = 0; |
| 2174 | #endif |
| 2175 | |
| 2176 | if (bfd_get_symcount(abfd) != 0) |
| 2177 | internal_f.f_symptr = sym_base; |
| 2178 | else |
| 2179 | internal_f.f_symptr = 0; |
| 2180 | |
| 2181 | internal_f.f_flags = 0; |
| 2182 | |
| 2183 | if (abfd->flags & EXEC_P) |
| 2184 | internal_f.f_opthdr = AOUTSZ; |
| 2185 | else |
| 2186 | internal_f.f_opthdr = 0; |
| 2187 | |
| 2188 | if (!hasrelocs) |
| 2189 | internal_f.f_flags |= F_RELFLG; |
| 2190 | if (!haslinno) |
| 2191 | internal_f.f_flags |= F_LNNO; |
| 2192 | if (0 == bfd_get_symcount(abfd)) |
| 2193 | internal_f.f_flags |= F_LSYMS; |
| 2194 | if (abfd->flags & EXEC_P) |
| 2195 | internal_f.f_flags |= F_EXEC; |
| 2196 | #if M88 |
| 2197 | internal_f.f_flags |= F_AR32W; |
| 2198 | #else |
| 2199 | if (!abfd->xvec->byteorder_big_p) |
| 2200 | internal_f.f_flags |= F_AR32WR; |
| 2201 | #endif |
| 2202 | /* |
| 2203 | FIXME, should do something about the other byte orders and |
| 2204 | architectures. |
| 2205 | */ |
| 2206 | |
| 2207 | /* Set up architecture-dependent stuff */ |
| 2208 | |
| 2209 | { unsigned int magic = 0; |
| 2210 | unsigned short flags = 0; |
| 2211 | coff_set_flags(abfd, &magic, &flags); |
| 2212 | internal_f.f_magic = magic; |
| 2213 | internal_f.f_flags |= flags; |
| 2214 | /* ...and the "opt"hdr... */ |
| 2215 | |
| 2216 | #ifdef A29K |
| 2217 | # ifdef ULTRA3 /* NYU's machine */ |
| 2218 | /* FIXME: This is a bogus check. I really want to see if there |
| 2219 | * is a .shbss or a .shdata section, if so then set the magic |
| 2220 | * number to indicate a shared data executable. |
| 2221 | */ |
| 2222 | if (internal_f.f_nscns >= 7) |
| 2223 | internal_a.magic = SHMAGIC; /* Shared magic */ |
| 2224 | else |
| 2225 | # endif /* ULTRA3 */ |
| 2226 | internal_a.magic = NMAGIC; /* Assume separate i/d */ |
| 2227 | #define __A_MAGIC_SET__ |
| 2228 | #endif /* A29K */ |
| 2229 | #ifdef I960 |
| 2230 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); |
| 2231 | #define __A_MAGIC_SET__ |
| 2232 | #endif /* I960 */ |
| 2233 | #if M88 |
| 2234 | #define __A_MAGIC_SET__ |
| 2235 | internal_a.magic = PAGEMAGICBCS; |
| 2236 | #endif /* M88 */ |
| 2237 | |
| 2238 | #if M68 || I386 || MIPS |
| 2239 | #define __A_MAGIC_SET__ |
| 2240 | /* Never was anything here for the 68k */ |
| 2241 | #endif /* M88 */ |
| 2242 | |
| 2243 | #ifndef __A_MAGIC_SET__ |
| 2244 | # include "Your aouthdr magic number is not being set!" |
| 2245 | #else |
| 2246 | # undef __A_MAGIC_SET__ |
| 2247 | #endif |
| 2248 | } |
| 2249 | /* Now should write relocs, strings, syms */ |
| 2250 | obj_sym_filepos(abfd) = sym_base; |
| 2251 | |
| 2252 | #ifndef NO_COFF_SYMBOLS |
| 2253 | if (bfd_get_symcount(abfd) != 0) { |
| 2254 | coff_renumber_symbols(abfd); |
| 2255 | coff_mangle_symbols(abfd); |
| 2256 | coff_write_symbols(abfd); |
| 2257 | coff_write_linenumbers(abfd); |
| 2258 | coff_write_relocs(abfd); |
| 2259 | } |
| 2260 | #endif /* NO_COFF_SYMBOLS */ |
| 2261 | if (text_sec) { |
| 2262 | internal_a.tsize = text_sec->size; |
| 2263 | internal_a.text_start =text_sec->size ? text_sec->vma : 0; |
| 2264 | } |
| 2265 | if (data_sec) { |
| 2266 | internal_a.dsize = data_sec->size; |
| 2267 | internal_a.data_start = data_sec->size ? data_sec->vma : 0; |
| 2268 | } |
| 2269 | if (bss_sec) { |
| 2270 | internal_a.bsize = bss_sec->size; |
| 2271 | } |
| 2272 | |
| 2273 | internal_a.entry = bfd_get_start_address(abfd); |
| 2274 | internal_f.f_nsyms = bfd_get_symcount(abfd); |
| 2275 | |
| 2276 | /* now write them */ |
| 2277 | if (bfd_seek(abfd, 0L, SEEK_SET) != 0) |
| 2278 | return false; |
| 2279 | { |
| 2280 | FILHDR buff; |
| 2281 | bfd_swap_filehdr_out(abfd, &internal_f, &buff); |
| 2282 | bfd_write((PTR) &buff, 1, FILHSZ, abfd); |
| 2283 | } |
| 2284 | if (abfd->flags & EXEC_P) { |
| 2285 | AOUTHDR buff; |
| 2286 | bfd_swap_aouthdr_out(abfd, &internal_a, &buff); |
| 2287 | bfd_write((PTR) &buff, 1, AOUTSZ, abfd); |
| 2288 | } |
| 2289 | return true; |
| 2290 | } |
| 2291 | |
| 2292 | #ifndef NO_COFF_SYMBOLS |
| 2293 | |
| 2294 | /* |
| 2295 | this function transforms the offsets into the symbol table into |
| 2296 | pointers to syments. |
| 2297 | */ |
| 2298 | |
| 2299 | |
| 2300 | static void |
| 2301 | DEFUN(coff_pointerize_aux,(abfd, table_base, type, class, auxent), |
| 2302 | bfd *abfd AND |
| 2303 | combined_entry_type *table_base AND |
| 2304 | int type AND |
| 2305 | int class AND |
| 2306 | combined_entry_type *auxent) |
| 2307 | { |
| 2308 | /* Don't bother if this is a file or a section */ |
| 2309 | if (class == C_STAT && type == T_NULL) return; |
| 2310 | if (class == C_FILE) return; |
| 2311 | |
| 2312 | /* Otherwise patch up */ |
| 2313 | if (ISFCN(type) || ISTAG(class) || class == C_BLOCK) { |
| 2314 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = table_base + |
| 2315 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; |
| 2316 | auxent->fix_end = 1; |
| 2317 | } |
| 2318 | if (auxent->u.auxent.x_sym.x_tagndx.l != 0) { |
| 2319 | auxent->u.auxent.x_sym.x_tagndx.p = table_base + auxent->u.auxent.x_sym.x_tagndx.l; |
| 2320 | auxent->fix_tag = 1; |
| 2321 | } |
| 2322 | } |
| 2323 | |
| 2324 | #endif /* NO_COFF_SYMBOLS */ |
| 2325 | |
| 2326 | static boolean |
| 2327 | DEFUN(coff_set_section_contents,(abfd, section, location, offset, count), |
| 2328 | bfd *abfd AND |
| 2329 | sec_ptr section AND |
| 2330 | PTR location AND |
| 2331 | file_ptr offset AND |
| 2332 | bfd_size_type count) |
| 2333 | { |
| 2334 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ |
| 2335 | coff_compute_section_file_positions(abfd); |
| 2336 | |
| 2337 | bfd_seek(abfd, (file_ptr) (section->filepos + offset), SEEK_SET); |
| 2338 | |
| 2339 | if (count != 0) { |
| 2340 | return (bfd_write(location, 1, count, abfd) == count) ? true : false; |
| 2341 | } |
| 2342 | return true; |
| 2343 | } |
| 2344 | #if 0 |
| 2345 | static boolean |
| 2346 | coff_close_and_cleanup(abfd) |
| 2347 | bfd *abfd; |
| 2348 | { |
| 2349 | if (!bfd_read_p(abfd)) |
| 2350 | switch (abfd->format) { |
| 2351 | case bfd_archive: |
| 2352 | if (!_bfd_write_archive_contents(abfd)) |
| 2353 | return false; |
| 2354 | break; |
| 2355 | case bfd_object: |
| 2356 | if (!coff_write_object_contents(abfd)) |
| 2357 | return false; |
| 2358 | break; |
| 2359 | default: |
| 2360 | bfd_error = invalid_operation; |
| 2361 | return false; |
| 2362 | } |
| 2363 | |
| 2364 | /* We depend on bfd_close to free all the memory on the obstack. */ |
| 2365 | /* FIXME if bfd_release is not using obstacks! */ |
| 2366 | return true; |
| 2367 | } |
| 2368 | |
| 2369 | #endif |
| 2370 | static PTR |
| 2371 | buy_and_read(abfd, where, seek_direction, size) |
| 2372 | bfd *abfd; |
| 2373 | file_ptr where; |
| 2374 | int seek_direction; |
| 2375 | size_t size; |
| 2376 | { |
| 2377 | PTR area = (PTR) bfd_alloc(abfd, size); |
| 2378 | if (!area) { |
| 2379 | bfd_error = no_memory; |
| 2380 | return (NULL); |
| 2381 | } |
| 2382 | bfd_seek(abfd, where, seek_direction); |
| 2383 | if (bfd_read(area, 1, size, abfd) != size) { |
| 2384 | bfd_error = system_call_error; |
| 2385 | return (NULL); |
| 2386 | } /* on error */ |
| 2387 | return (area); |
| 2388 | } /* buy_and_read() */ |
| 2389 | |
| 2390 | |
| 2391 | #ifndef NO_COFF_SYMBOLS |
| 2392 | |
| 2393 | static char * |
| 2394 | DEFUN(build_string_table,(abfd), |
| 2395 | bfd *abfd) |
| 2396 | { |
| 2397 | char string_table_size_buffer[4]; |
| 2398 | unsigned int string_table_size; |
| 2399 | char *string_table; |
| 2400 | /* |
| 2401 | At this point we should be "seek"'d to the end of the |
| 2402 | symbols === the symbol table size. |
| 2403 | */ |
| 2404 | |
| 2405 | if (bfd_read((char *) string_table_size_buffer, |
| 2406 | sizeof(string_table_size_buffer), |
| 2407 | 1, abfd) != sizeof(string_table_size)) { |
| 2408 | bfd_error = system_call_error; |
| 2409 | return (NULL); |
| 2410 | } /* on error */ |
| 2411 | |
| 2412 | string_table_size = bfd_h_get_32(abfd, (bfd_byte *) string_table_size_buffer); |
| 2413 | |
| 2414 | if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) { |
| 2415 | bfd_error = no_memory; |
| 2416 | return (NULL); |
| 2417 | } /* on mallocation error */ |
| 2418 | if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) { |
| 2419 | bfd_error = system_call_error; |
| 2420 | return (NULL); |
| 2421 | } |
| 2422 | return string_table; |
| 2423 | } |
| 2424 | |
| 2425 | /* |
| 2426 | read a symbol table into freshly mallocated memory, swap it, and knit the |
| 2427 | symbol names into a normalized form. By normalized here I mean that all |
| 2428 | symbols have an n_offset pointer that points to a NULL terminated string. |
| 2429 | Oh, and the first symbol MUST be a C_FILE. If there wasn't one there |
| 2430 | before, put one there. |
| 2431 | */ |
| 2432 | |
| 2433 | static combined_entry_type * |
| 2434 | DEFUN(get_normalized_symtab,(abfd), |
| 2435 | bfd *abfd) |
| 2436 | { |
| 2437 | |
| 2438 | combined_entry_type *internal; |
| 2439 | combined_entry_type *internal_ptr; |
| 2440 | combined_entry_type *internal_end; |
| 2441 | SYMENT *raw; |
| 2442 | SYMENT *raw_src; |
| 2443 | SYMENT *raw_end; |
| 2444 | char *string_table = NULL; |
| 2445 | unsigned long size; |
| 2446 | |
| 2447 | |
| 2448 | unsigned int raw_size; |
| 2449 | if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) { |
| 2450 | return obj_raw_syments(abfd); |
| 2451 | } |
| 2452 | if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) { |
| 2453 | bfd_error = no_symbols; |
| 2454 | return (NULL); |
| 2455 | } |
| 2456 | |
| 2457 | internal = (combined_entry_type *)bfd_alloc(abfd, size); |
| 2458 | internal_end = internal + bfd_get_symcount(abfd); |
| 2459 | |
| 2460 | raw_size = bfd_get_symcount(abfd) * SYMESZ; |
| 2461 | raw = (SYMENT *)bfd_alloc(abfd,raw_size); |
| 2462 | |
| 2463 | if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1 |
| 2464 | || bfd_read((PTR)raw, raw_size, 1, abfd) != raw_size) { |
| 2465 | bfd_error = system_call_error; |
| 2466 | return (NULL); |
| 2467 | } |
| 2468 | /* mark the end of the symbols */ |
| 2469 | raw_end = raw + bfd_get_symcount(abfd); |
| 2470 | /* |
| 2471 | FIXME SOMEDAY. A string table size of zero is very weird, but |
| 2472 | probably possible. If one shows up, it will probably kill us. |
| 2473 | */ |
| 2474 | |
| 2475 | /* Swap all the raw entries */ |
| 2476 | for (raw_src = raw, internal_ptr = internal; raw_src < raw_end; raw_src++, internal_ptr++) { |
| 2477 | unsigned int i; |
| 2478 | coff_swap_sym_in(abfd, raw_src,&internal_ptr->u.syment); |
| 2479 | internal_ptr->fix_tag = 0; |
| 2480 | internal_ptr->fix_end = 0; |
| 2481 | |
| 2482 | for (i = internal_ptr->u.syment.n_numaux; i; --i, raw_src++, internal_ptr++) { |
| 2483 | (internal_ptr+1)->fix_tag = 0; |
| 2484 | (internal_ptr+1)->fix_end = 0; |
| 2485 | |
| 2486 | coff_swap_aux_in(abfd, (AUXENT *)(raw_src +1), internal_ptr->u.syment.n_type, |
| 2487 | internal_ptr->u.syment.n_sclass, & (internal_ptr+1)->u.auxent); |
| 2488 | |
| 2489 | coff_pointerize_aux(abfd, |
| 2490 | internal, |
| 2491 | internal_ptr->u.syment.n_type, |
| 2492 | internal_ptr->u.syment.n_sclass, |
| 2493 | internal_ptr +1); |
| 2494 | } |
| 2495 | } |
| 2496 | |
| 2497 | /* Free all the raw stuff */ |
| 2498 | bfd_release(abfd, raw_src); |
| 2499 | |
| 2500 | for (internal_ptr = internal; internal_ptr < internal_end; |
| 2501 | internal_ptr ++) |
| 2502 | { |
| 2503 | if (internal_ptr->u.syment.n_sclass == C_FILE) { |
| 2504 | /* make a file symbol point to the name in the auxent, since |
| 2505 | the text ".file" is redundant */ |
| 2506 | if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) { |
| 2507 | /* the filename is a long one, point into the string table |
| 2508 | */ |
| 2509 | if (string_table == NULL) { |
| 2510 | string_table = build_string_table(abfd); |
| 2511 | } |
| 2512 | |
| 2513 | internal_ptr->u.syment._n._n_n._n_offset = |
| 2514 | (int) (string_table - 4 + |
| 2515 | (internal_ptr+1)->u.auxent.x_file.x_n.x_offset); |
| 2516 | } |
| 2517 | else { |
| 2518 | /* ordinary short filename, put into memory anyway */ |
| 2519 | internal_ptr->u.syment._n._n_n._n_offset = (int) |
| 2520 | copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname, FILNMLEN); |
| 2521 | |
| 2522 | } |
| 2523 | } |
| 2524 | else { |
| 2525 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) { |
| 2526 | /* |
| 2527 | This is a "short" name. Make it long. |
| 2528 | */ |
| 2529 | unsigned long i = 0; |
| 2530 | char *newstring = NULL; |
| 2531 | /* |
| 2532 | find the length of this string without walking into memory |
| 2533 | that isn't ours. |
| 2534 | */ |
| 2535 | |
| 2536 | for (i = 0; i < 8; ++i) { |
| 2537 | if (internal_ptr->u.syment._n._n_name[i] == '\0') { |
| 2538 | break; |
| 2539 | } /* if end of string */ |
| 2540 | } /* possible lengths of this string. */ |
| 2541 | |
| 2542 | if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) { |
| 2543 | bfd_error = no_memory; |
| 2544 | return (NULL); |
| 2545 | } /* on error */ |
| 2546 | bzero(newstring, i); |
| 2547 | strncpy(newstring, internal_ptr->u.syment._n._n_name, i-1); |
| 2548 | internal_ptr->u.syment._n._n_n._n_offset = (int) newstring; |
| 2549 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; |
| 2550 | |
| 2551 | } |
| 2552 | else { |
| 2553 | /* This is a long name already. Just point it at the string in memory. */ |
| 2554 | if (string_table == NULL) { |
| 2555 | string_table = build_string_table(abfd); |
| 2556 | } |
| 2557 | internal_ptr->u.syment._n._n_n._n_offset = |
| 2558 | (int) (string_table - 4 + internal_ptr->u.syment._n._n_n._n_offset); |
| 2559 | } |
| 2560 | } |
| 2561 | internal_ptr += internal_ptr->u.syment.n_numaux; |
| 2562 | } |
| 2563 | |
| 2564 | obj_raw_syments(abfd) = internal; |
| 2565 | obj_string_table(abfd) = string_table; |
| 2566 | |
| 2567 | return (internal); |
| 2568 | } /* get_normalized_symtab() */ |
| 2569 | |
| 2570 | #endif /* NO_COFF_SYMBOLS */ |
| 2571 | |
| 2572 | static |
| 2573 | struct sec * |
| 2574 | DEFUN(section_from_bfd_index,(abfd, index), |
| 2575 | bfd *abfd AND |
| 2576 | int index) |
| 2577 | { |
| 2578 | if (index > 0) { |
| 2579 | struct sec *answer = abfd->sections; |
| 2580 | while (--index) { |
| 2581 | answer = answer->next; |
| 2582 | } |
| 2583 | return answer; |
| 2584 | } |
| 2585 | return 0; |
| 2586 | } |
| 2587 | |
| 2588 | #ifndef NO_COFF_LINENOS |
| 2589 | |
| 2590 | /*doc* |
| 2591 | @subsubsection Reading Linenumbers |
| 2592 | Createing the linenumber table is done by reading in the entire coff |
| 2593 | linenumber table, and creating another table for internal use. |
| 2594 | |
| 2595 | A coff line number table is structured so that each |
| 2596 | function is marked as having a line number of 0. Each line within the |
| 2597 | function is an offset from the first line in the function. The base of |
| 2598 | the line number information for the table is stored in the symbol |
| 2599 | associated with the function. |
| 2600 | |
| 2601 | The information is copied from the external to the internal table, and |
| 2602 | each symbol which marks a function is marked by pointing its... |
| 2603 | |
| 2604 | **How does this work ?** |
| 2605 | |
| 2606 | */ |
| 2607 | |
| 2608 | static boolean |
| 2609 | coff_slurp_line_table(abfd, asect) |
| 2610 | bfd *abfd; |
| 2611 | asection *asect; |
| 2612 | { |
| 2613 | LINENO *native_lineno; |
| 2614 | alent *lineno_cache; |
| 2615 | |
| 2616 | BFD_ASSERT(asect->lineno == (alent *) NULL); |
| 2617 | |
| 2618 | native_lineno = (LINENO *) buy_and_read(abfd, |
| 2619 | asect->line_filepos, |
| 2620 | SEEK_SET, |
| 2621 | (size_t) (LINESZ * |
| 2622 | asect->lineno_count)); |
| 2623 | lineno_cache = |
| 2624 | (alent *) bfd_alloc(abfd, (size_t) ((asect->lineno_count + 1) * sizeof(alent))); |
| 2625 | if (lineno_cache == NULL) { |
| 2626 | bfd_error = no_memory; |
| 2627 | return false; |
| 2628 | } else { |
| 2629 | unsigned int counter = 0; |
| 2630 | alent *cache_ptr = lineno_cache; |
| 2631 | LINENO *src = native_lineno; |
| 2632 | |
| 2633 | while (counter < asect->lineno_count) { |
| 2634 | struct internal_lineno dst; |
| 2635 | coff_swap_lineno_in(abfd, src, &dst); |
| 2636 | cache_ptr->line_number = dst.l_lnno; |
| 2637 | |
| 2638 | if (cache_ptr->line_number == 0) { |
| 2639 | coff_symbol_type *sym = |
| 2640 | (coff_symbol_type *) (dst.l_addr.l_symndx |
| 2641 | + obj_symbol_slew(abfd) |
| 2642 | + obj_raw_syments(abfd))->u.syment._n._n_n._n_zeroes; |
| 2643 | cache_ptr->u.sym = (asymbol *) sym; |
| 2644 | sym->lineno = cache_ptr; |
| 2645 | } |
| 2646 | else { |
| 2647 | cache_ptr->u.offset = dst.l_addr.l_paddr |
| 2648 | - bfd_section_vma(abfd, asect); |
| 2649 | } /* If no linenumber expect a symbol index */ |
| 2650 | |
| 2651 | cache_ptr++; |
| 2652 | src++; |
| 2653 | counter++; |
| 2654 | } |
| 2655 | cache_ptr->line_number = 0; |
| 2656 | |
| 2657 | } |
| 2658 | asect->lineno = lineno_cache; |
| 2659 | /* FIXME, free native_lineno here, or use alloca or something. */ |
| 2660 | return true; |
| 2661 | } /* coff_slurp_line_table() */ |
| 2662 | |
| 2663 | #endif /* NO_COFF_LINENOS */ |
| 2664 | |
| 2665 | #ifndef NO_COFF_LINENOS |
| 2666 | |
| 2667 | static boolean |
| 2668 | DEFUN(coff_slurp_symbol_table,(abfd), |
| 2669 | bfd *abfd) |
| 2670 | { |
| 2671 | combined_entry_type *native_symbols; |
| 2672 | coff_symbol_type *cached_area; |
| 2673 | unsigned int *table_ptr; |
| 2674 | |
| 2675 | unsigned int number_of_symbols = 0; |
| 2676 | if (obj_symbols(abfd)) |
| 2677 | return true; |
| 2678 | bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET); |
| 2679 | |
| 2680 | /* Read in the symbol table */ |
| 2681 | if ((native_symbols = get_normalized_symtab(abfd)) == NULL) { |
| 2682 | return (false); |
| 2683 | } /* on error */ |
| 2684 | |
| 2685 | |
| 2686 | /* Allocate enough room for all the symbols in cached form */ |
| 2687 | cached_area = |
| 2688 | (coff_symbol_type *) |
| 2689 | bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(coff_symbol_type))); |
| 2690 | |
| 2691 | if (cached_area == NULL) { |
| 2692 | bfd_error = no_memory; |
| 2693 | return false; |
| 2694 | } /* on error */ |
| 2695 | table_ptr = |
| 2696 | (unsigned int *) |
| 2697 | bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(unsigned int))); |
| 2698 | |
| 2699 | if (table_ptr == NULL) { |
| 2700 | bfd_error = no_memory; |
| 2701 | return false; |
| 2702 | } else { |
| 2703 | coff_symbol_type *dst = cached_area; |
| 2704 | unsigned int last_native_index = bfd_get_symcount(abfd); |
| 2705 | unsigned int this_index = 0; |
| 2706 | while (this_index < last_native_index) { |
| 2707 | combined_entry_type *src = native_symbols + this_index; |
| 2708 | table_ptr[this_index] = number_of_symbols; |
| 2709 | dst->symbol.the_bfd = abfd; |
| 2710 | |
| 2711 | dst->symbol.name = (char *)(src->u.syment._n._n_n._n_offset); |
| 2712 | /* |
| 2713 | We use the native name field to point to the cached field |
| 2714 | */ |
| 2715 | src->u.syment._n._n_n._n_zeroes = (int) dst; |
| 2716 | dst->symbol.section = section_from_bfd_index(abfd, |
| 2717 | src->u.syment.n_scnum); |
| 2718 | switch (src->u.syment.n_sclass) { |
| 2719 | #ifdef I960 |
| 2720 | case C_LEAFEXT: |
| 2721 | #if 0 |
| 2722 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; |
| 2723 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
| 2724 | dst->symbol.flags |= BSF_NOT_AT_END; |
| 2725 | #endif |
| 2726 | /* Fall through to next case */ |
| 2727 | |
| 2728 | #endif |
| 2729 | |
| 2730 | case C_EXT: |
| 2731 | if ((src->u.syment.n_scnum) == 0) { |
| 2732 | if ((src->u.syment.n_value) == 0) { |
| 2733 | dst->symbol.flags = BSF_UNDEFINED; |
| 2734 | dst->symbol.value= 0; |
| 2735 | } |
| 2736 | else { |
| 2737 | dst->symbol.flags = BSF_FORT_COMM; |
| 2738 | dst->symbol.value = (src->u.syment.n_value); |
| 2739 | } |
| 2740 | } |
| 2741 | else { |
| 2742 | /* |
| 2743 | Base the value as an index from the base of the |
| 2744 | section |
| 2745 | */ |
| 2746 | if (dst->symbol.section == (asection *) NULL) { |
| 2747 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL | BSF_ABSOLUTE; |
| 2748 | dst->symbol.value = src->u.syment.n_value; |
| 2749 | } |
| 2750 | else { |
| 2751 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
| 2752 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; |
| 2753 | } |
| 2754 | if (ISFCN((src->u.syment.n_type))) { |
| 2755 | /* |
| 2756 | A function ext does not go at the end of a file |
| 2757 | */ |
| 2758 | dst->symbol.flags |= BSF_NOT_AT_END; |
| 2759 | } |
| 2760 | } |
| 2761 | |
| 2762 | break; |
| 2763 | case C_STAT: /* static */ |
| 2764 | #ifdef I960 |
| 2765 | case C_LEAFSTAT: /* static leaf procedure */ |
| 2766 | #endif |
| 2767 | case C_LABEL: /* label */ |
| 2768 | dst->symbol.flags = BSF_LOCAL; |
| 2769 | /* |
| 2770 | Base the value as an index from the base of the section |
| 2771 | */ |
| 2772 | dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma; |
| 2773 | break; |
| 2774 | |
| 2775 | case C_MOS: /* member of structure */ |
| 2776 | case C_EOS: /* end of structure */ |
| 2777 | #ifdef NOTDEF /* C_AUTOARG has the same value */ |
| 2778 | #ifdef C_GLBLREG |
| 2779 | case C_GLBLREG: /* A29k-specific storage class */ |
| 2780 | #endif |
| 2781 | #endif |
| 2782 | case C_REGPARM: /* register parameter */ |
| 2783 | case C_REG: /* register variable */ |
| 2784 | #ifdef C_AUTOARG |
| 2785 | case C_AUTOARG: /* 960-specific storage class */ |
| 2786 | #endif |
| 2787 | case C_TPDEF: /* type definition */ |
| 2788 | |
| 2789 | case C_ARG: |
| 2790 | case C_AUTO: /* automatic variable */ |
| 2791 | case C_FIELD: /* bit field */ |
| 2792 | case C_ENTAG: /* enumeration tag */ |
| 2793 | case C_MOE: /* member of enumeration */ |
| 2794 | case C_MOU: /* member of union */ |
| 2795 | case C_UNTAG: /* union tag */ |
| 2796 | |
| 2797 | dst->symbol.flags = BSF_DEBUGGING; |
| 2798 | dst->symbol.value = (src->u.syment.n_value); |
| 2799 | break; |
| 2800 | |
| 2801 | case C_FILE: /* file name */ |
| 2802 | case C_STRTAG: /* structure tag */ |
| 2803 | dst->symbol.flags = BSF_DEBUGGING; |
| 2804 | dst->symbol.value = (src->u.syment.n_value); |
| 2805 | |
| 2806 | break; |
| 2807 | case C_BLOCK: /* ".bb" or ".eb" */ |
| 2808 | case C_FCN: /* ".bf" or ".ef" */ |
| 2809 | case C_EFCN: /* physical end of function */ |
| 2810 | dst->symbol.flags = BSF_LOCAL; |
| 2811 | /* |
| 2812 | Base the value as an index from the base of the section |
| 2813 | */ |
| 2814 | dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma; |
| 2815 | |
| 2816 | break; |
| 2817 | case C_NULL: |
| 2818 | case C_EXTDEF: /* external definition */ |
| 2819 | case C_ULABEL: /* undefined label */ |
| 2820 | case C_USTATIC: /* undefined static */ |
| 2821 | case C_LINE: /* line # reformatted as symbol table entry */ |
| 2822 | case C_ALIAS: /* duplicate tag */ |
| 2823 | case C_HIDDEN: /* ext symbol in dmert public lib */ |
| 2824 | |
| 2825 | default: |
| 2826 | |
| 2827 | fprintf(stderr,"Unrecognized storage class %d\n", |
| 2828 | src->u.syment.n_sclass); |
| 2829 | abort(); |
| 2830 | dst->symbol.flags = BSF_DEBUGGING; |
| 2831 | dst->symbol.value = (src->u.syment.n_value); |
| 2832 | |
| 2833 | break; |
| 2834 | } |
| 2835 | |
| 2836 | BFD_ASSERT(dst->symbol.flags != 0); |
| 2837 | |
| 2838 | dst->native = src; |
| 2839 | |
| 2840 | dst->symbol.udata = 0; |
| 2841 | dst->lineno = (alent *) NULL; |
| 2842 | this_index += (src->u.syment.n_numaux) + 1; |
| 2843 | dst++; |
| 2844 | number_of_symbols++; |
| 2845 | } /* walk the native symtab */ |
| 2846 | } /* bfdize the native symtab */ |
| 2847 | |
| 2848 | obj_symbols(abfd) = cached_area; |
| 2849 | obj_raw_syments(abfd) = native_symbols; |
| 2850 | |
| 2851 | bfd_get_symcount(abfd) = number_of_symbols; |
| 2852 | obj_convert(abfd) = table_ptr; |
| 2853 | /* Slurp the line tables for each section too */ |
| 2854 | { |
| 2855 | asection *p; |
| 2856 | p = abfd->sections; |
| 2857 | while (p) { |
| 2858 | coff_slurp_line_table(abfd, p); |
| 2859 | p = p->next; |
| 2860 | } |
| 2861 | } |
| 2862 | return true; |
| 2863 | } /* coff_slurp_symbol_table() */ |
| 2864 | |
| 2865 | static unsigned int |
| 2866 | coff_get_symtab_upper_bound(abfd) |
| 2867 | bfd *abfd; |
| 2868 | { |
| 2869 | if (!coff_slurp_symbol_table(abfd)) |
| 2870 | return 0; |
| 2871 | |
| 2872 | return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *)); |
| 2873 | } |
| 2874 | |
| 2875 | |
| 2876 | static unsigned int |
| 2877 | coff_get_symtab(abfd, alocation) |
| 2878 | bfd *abfd; |
| 2879 | asymbol **alocation; |
| 2880 | { |
| 2881 | unsigned int counter = 0; |
| 2882 | coff_symbol_type *symbase; |
| 2883 | coff_symbol_type **location = (coff_symbol_type **) (alocation); |
| 2884 | if (!coff_slurp_symbol_table(abfd)) |
| 2885 | return 0; |
| 2886 | |
| 2887 | for (symbase = obj_symbols(abfd); counter++ < bfd_get_symcount(abfd);) |
| 2888 | *(location++) = symbase++; |
| 2889 | *location++ = 0; |
| 2890 | return bfd_get_symcount(abfd); |
| 2891 | } |
| 2892 | |
| 2893 | #endif /* NO_COFF_SYMBOLS */ |
| 2894 | |
| 2895 | static unsigned int |
| 2896 | coff_get_reloc_upper_bound(abfd, asect) |
| 2897 | bfd *abfd; |
| 2898 | sec_ptr asect; |
| 2899 | { |
| 2900 | if (bfd_get_format(abfd) != bfd_object) { |
| 2901 | bfd_error = invalid_operation; |
| 2902 | return 0; |
| 2903 | } |
| 2904 | return (asect->reloc_count + 1) * sizeof(arelent *); |
| 2905 | } |
| 2906 | |
| 2907 | /*doc* |
| 2908 | @subsubsection Reading Relocations |
| 2909 | Coff relocations are easily transformed into the internal bfd form |
| 2910 | (@code{arelent}). |
| 2911 | |
| 2912 | Reading a coff relocation table is done in the following stages: |
| 2913 | @itemize @bullet |
| 2914 | @item |
| 2915 | The entire coff relocation table is read into memory. |
| 2916 | @item |
| 2917 | Each relocation is processed in turn, first it is swapped from the |
| 2918 | external to the internal form. |
| 2919 | @item |
| 2920 | The symbol referenced in the relocation's symbol index is turned into |
| 2921 | a pointer into the canonical symbol table. Note that this table is the |
| 2922 | same as the one returned by a call to @code{bfd_canonicalize_symtab}. |
| 2923 | The back end will call the routine and save the result if a |
| 2924 | canonicalization hasn't been done. |
| 2925 | @item |
| 2926 | The reloc index is turned into a pointer to a howto structure, in a |
| 2927 | back end specific way. For instance, the 386 and 960 use the |
| 2928 | @code{r_type} to directly produce an index into a howto table vector; |
| 2929 | the 88k subtracts a number from the @code{r_type} field and creates an |
| 2930 | addend field. |
| 2931 | @end itemize |
| 2932 | */ |
| 2933 | |
| 2934 | static boolean |
| 2935 | DEFUN(coff_slurp_reloc_table,(abfd, asect, symbols), |
| 2936 | bfd *abfd AND |
| 2937 | sec_ptr asect AND |
| 2938 | asymbol **symbols) |
| 2939 | { |
| 2940 | RELOC *native_relocs; |
| 2941 | arelent *reloc_cache; |
| 2942 | if (asect->relocation) |
| 2943 | return true; |
| 2944 | if (asect->reloc_count == 0) |
| 2945 | return true; |
| 2946 | #ifndef NO_COFF_SYMBOLS |
| 2947 | if (!coff_slurp_symbol_table(abfd)) |
| 2948 | return false; |
| 2949 | #endif |
| 2950 | native_relocs = |
| 2951 | (RELOC *) buy_and_read(abfd, |
| 2952 | asect->rel_filepos, |
| 2953 | SEEK_SET, |
| 2954 | (size_t) (RELSZ * |
| 2955 | asect->reloc_count)); |
| 2956 | reloc_cache = (arelent *) |
| 2957 | bfd_alloc(abfd, (size_t) (asect->reloc_count * sizeof(arelent))); |
| 2958 | |
| 2959 | if (reloc_cache == NULL) { |
| 2960 | bfd_error = no_memory; |
| 2961 | return false; |
| 2962 | } { /* on error */ |
| 2963 | arelent *cache_ptr; |
| 2964 | RELOC *src; |
| 2965 | for (cache_ptr = reloc_cache, |
| 2966 | src = native_relocs; |
| 2967 | cache_ptr < reloc_cache + asect->reloc_count; |
| 2968 | cache_ptr++, |
| 2969 | src++) { |
| 2970 | struct internal_reloc dst; |
| 2971 | asymbol *ptr; |
| 2972 | bfd_swap_reloc_in(abfd, src, &dst); |
| 2973 | |
| 2974 | dst.r_symndx += obj_symbol_slew(abfd); |
| 2975 | cache_ptr->sym_ptr_ptr = symbols + obj_convert(abfd)[dst.r_symndx]; |
| 2976 | #ifdef A29K |
| 2977 | /* AMD has two relocation entries for the 'consth' instruction. |
| 2978 | * The first is R_IHIHALF (part 1), the second is R_IHCONST |
| 2979 | * (part 2). The second entry's r_symndx does not contain |
| 2980 | * an index to a symbol but rather a value (apparently). |
| 2981 | * Also, see the ifdef below for saving the r_symndx value in addend. |
| 2982 | */ |
| 2983 | if (dst.r_type == R_IHCONST) { |
| 2984 | ptr = NULL; |
| 2985 | } else |
| 2986 | #endif |
| 2987 | ptr = *(cache_ptr->sym_ptr_ptr); |
| 2988 | cache_ptr->address = dst.r_vaddr; |
| 2989 | /* |
| 2990 | The symbols definitions that we have read in have been |
| 2991 | relocated as if their sections started at 0. But the offsets |
| 2992 | refering to the symbols in the raw data have not been |
| 2993 | modified, so we have to have a negative addend to compensate. |
| 2994 | |
| 2995 | Note that symbols which used to be common must be left alone |
| 2996 | */ |
| 2997 | |
| 2998 | if (ptr && ptr->the_bfd == abfd |
| 2999 | && ptr->section != (asection *) NULL |
| 3000 | && ((ptr->flags & BSF_OLD_COMMON)== 0)) |
| 3001 | { |
| 3002 | #ifndef M88 |
| 3003 | cache_ptr->addend = -(ptr->section->vma + ptr->value); |
| 3004 | #else |
| 3005 | cache_ptr->addend = 0; |
| 3006 | #endif |
| 3007 | |
| 3008 | } |
| 3009 | else { |
| 3010 | cache_ptr->addend = 0; |
| 3011 | } |
| 3012 | |
| 3013 | cache_ptr->address -= asect->vma; |
| 3014 | |
| 3015 | cache_ptr->section = (asection *) NULL; |
| 3016 | |
| 3017 | #ifdef A29K |
| 3018 | if (dst.r_type == R_IHCONST) { |
| 3019 | /* Add in the value which was stored in the symbol index */ |
| 3020 | /* See above comment */ |
| 3021 | cache_ptr->addend += dst.r_symndx; |
| 3022 | /* Throw away the bogus symbol pointer */ |
| 3023 | cache_ptr->sym_ptr_ptr = 0; |
| 3024 | } |
| 3025 | cache_ptr->howto = howto_table + dst.r_type; |
| 3026 | #endif |
| 3027 | #if I386 |
| 3028 | cache_ptr->howto = howto_table + dst.r_type; |
| 3029 | #endif |
| 3030 | #if I960 |
| 3031 | cache_ptr->howto = howto_table + dst.r_type; |
| 3032 | #endif |
| 3033 | #if M68 |
| 3034 | cache_ptr->howto = howto_table + dst.r_type - R_RELBYTE; |
| 3035 | #endif |
| 3036 | #if M88 |
| 3037 | if (dst.r_type >= R_PCR16L && dst.r_type <= R_VRT32) { |
| 3038 | cache_ptr->howto = howto_table + dst.r_type - R_PCR16L; |
| 3039 | cache_ptr->addend += dst.r_offset << 16; |
| 3040 | } |
| 3041 | else { |
| 3042 | BFD_ASSERT(0); |
| 3043 | } |
| 3044 | #endif |
| 3045 | |
| 3046 | } |
| 3047 | |
| 3048 | } |
| 3049 | |
| 3050 | asect->relocation = reloc_cache; |
| 3051 | return true; |
| 3052 | } |
| 3053 | |
| 3054 | |
| 3055 | /* This is stupid. This function should be a boolean predicate */ |
| 3056 | static unsigned int |
| 3057 | coff_canonicalize_reloc(abfd, section, relptr, symbols) |
| 3058 | bfd *abfd; |
| 3059 | sec_ptr section; |
| 3060 | arelent **relptr; |
| 3061 | asymbol **symbols; |
| 3062 | { |
| 3063 | arelent *tblptr = section->relocation; |
| 3064 | unsigned int count = 0; |
| 3065 | if (!(tblptr || coff_slurp_reloc_table(abfd, section, symbols))) |
| 3066 | return 0; |
| 3067 | tblptr = section->relocation; |
| 3068 | if (!tblptr) |
| 3069 | return 0; |
| 3070 | |
| 3071 | for (; count++ < section->reloc_count;) |
| 3072 | *relptr++ = tblptr++; |
| 3073 | |
| 3074 | *relptr = 0; |
| 3075 | |
| 3076 | return section->reloc_count; |
| 3077 | } |
| 3078 | |
| 3079 | #ifndef NO_COFF_SYMBOLS |
| 3080 | |
| 3081 | /* |
| 3082 | provided a bfd, a section and an offset into the section, calculate and |
| 3083 | return the name of the source file and the line nearest to the wanted |
| 3084 | location. |
| 3085 | */ |
| 3086 | |
| 3087 | static boolean |
| 3088 | DEFUN(coff_find_nearest_line,(abfd, |
| 3089 | section, |
| 3090 | symbols, |
| 3091 | offset, |
| 3092 | filename_ptr, |
| 3093 | functionname_ptr, |
| 3094 | line_ptr), |
| 3095 | bfd *abfd AND |
| 3096 | asection *section AND |
| 3097 | asymbol **symbols AND |
| 3098 | bfd_vma offset AND |
| 3099 | CONST char **filename_ptr AND |
| 3100 | CONST char **functionname_ptr AND |
| 3101 | unsigned int *line_ptr) |
| 3102 | { |
| 3103 | static bfd *cache_abfd; |
| 3104 | static asection *cache_section; |
| 3105 | static bfd_vma cache_offset; |
| 3106 | static unsigned int cache_i; |
| 3107 | static alent *cache_l; |
| 3108 | |
| 3109 | unsigned int i = 0; |
| 3110 | struct icofdata *cof = obj_icof(abfd); |
| 3111 | /* Run through the raw syments if available */ |
| 3112 | combined_entry_type *p; |
| 3113 | alent *l; |
| 3114 | unsigned int line_base = 0; |
| 3115 | |
| 3116 | |
| 3117 | *filename_ptr = 0; |
| 3118 | *functionname_ptr = 0; |
| 3119 | *line_ptr = 0; |
| 3120 | |
| 3121 | /* Don't try and find line numbers in a non coff file */ |
| 3122 | if (abfd->xvec->flavour != bfd_target_coff_flavour_enum) |
| 3123 | return false; |
| 3124 | |
| 3125 | if (cof == (struct icofdata *)NULL) |
| 3126 | return false; |
| 3127 | |
| 3128 | p = cof->raw_syments; |
| 3129 | |
| 3130 | for (i = 0; i < cof->raw_syment_count; i++) { |
| 3131 | if (p->u.syment.n_sclass == C_FILE) { |
| 3132 | /* File name has been moved into symbol */ |
| 3133 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; |
| 3134 | break; |
| 3135 | } |
| 3136 | p += 1 + p->u.syment.n_numaux; |
| 3137 | } |
| 3138 | /* Now wander though the raw linenumbers of the section */ |
| 3139 | /* |
| 3140 | If this is the same bfd as we were previously called with and this is |
| 3141 | the same section, and the offset we want is further down then we can |
| 3142 | prime the lookup loop |
| 3143 | */ |
| 3144 | if (abfd == cache_abfd && |
| 3145 | section == cache_section && |
| 3146 | offset >= cache_offset) { |
| 3147 | i = cache_i; |
| 3148 | l = cache_l; |
| 3149 | } |
| 3150 | else { |
| 3151 | i = 0; |
| 3152 | l = section->lineno; |
| 3153 | } |
| 3154 | |
| 3155 | for (; i < section->lineno_count; i++) { |
| 3156 | if (l->line_number == 0) { |
| 3157 | /* Get the symbol this line number points at */ |
| 3158 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); |
| 3159 | *functionname_ptr = coff->symbol.name; |
| 3160 | if (coff->native) { |
| 3161 | combined_entry_type *s = coff->native; |
| 3162 | s = s + 1 + s->u.syment.n_numaux; |
| 3163 | /* |
| 3164 | S should now point to the .bf of the function |
| 3165 | */ |
| 3166 | if (s->u.syment.n_numaux) { |
| 3167 | /* |
| 3168 | The linenumber is stored in the auxent |
| 3169 | */ |
| 3170 | union internal_auxent *a = &((s + 1)->u.auxent); |
| 3171 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; |
| 3172 | } |
| 3173 | } |
| 3174 | } |
| 3175 | else { |
| 3176 | if (l->u.offset > offset) |
| 3177 | break; |
| 3178 | *line_ptr = l->line_number + line_base + 1; |
| 3179 | } |
| 3180 | l++; |
| 3181 | } |
| 3182 | |
| 3183 | cache_abfd = abfd; |
| 3184 | cache_section = section; |
| 3185 | cache_offset = offset; |
| 3186 | cache_i = i; |
| 3187 | cache_l = l; |
| 3188 | |
| 3189 | return true; |
| 3190 | } |
| 3191 | |
| 3192 | #ifdef GNU960 |
| 3193 | file_ptr |
| 3194 | coff_sym_filepos(abfd) |
| 3195 | bfd *abfd; |
| 3196 | { |
| 3197 | return obj_sym_filepos(abfd); |
| 3198 | } |
| 3199 | #endif |
| 3200 | |
| 3201 | #endif /* NO_COFF_SYMBOLS */ |
| 3202 | |
| 3203 | |
| 3204 | static int |
| 3205 | DEFUN(coff_sizeof_headers,(abfd, reloc), |
| 3206 | bfd *abfd AND |
| 3207 | boolean reloc) |
| 3208 | { |
| 3209 | size_t size; |
| 3210 | |
| 3211 | if (reloc == false) { |
| 3212 | size = FILHSZ + AOUTSZ; |
| 3213 | } |
| 3214 | else { |
| 3215 | size = FILHSZ; |
| 3216 | } |
| 3217 | |
| 3218 | size += abfd->section_count * SCNHSZ; |
| 3219 | return size; |
| 3220 | } |
| 3221 | |
| 3222 | |
| 3223 | #define coff_core_file_failing_command _bfd_dummy_core_file_failing_command |
| 3224 | #define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal |
| 3225 | #define coff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p |
| 3226 | #define coff_slurp_armap bfd_slurp_coff_armap |
| 3227 | #define coff_slurp_extended_name_table _bfd_slurp_extended_name_table |
| 3228 | #define coff_truncate_arname bfd_dont_truncate_arname |
| 3229 | #define coff_openr_next_archived_file bfd_generic_openr_next_archived_file |
| 3230 | #define coff_generic_stat_arch_elt bfd_generic_stat_arch_elt |
| 3231 | #define coff_get_section_contents bfd_generic_get_section_contents |
| 3232 | #define coff_close_and_cleanup bfd_generic_close_and_cleanup |
| 3233 | |
| 3234 | #define coff_bfd_debug_info_start bfd_void |
| 3235 | #define coff_bfd_debug_info_end bfd_void |
| 3236 | #define coff_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void |
| 3237 | |