bfd/targets.c

   1 /* Generic target-file-type support for the BFD library.
   2    Copyright 1990, 1991, 1992, 1993 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 #include "bfd.h"
  22 #include "sysdep.h"
  23 #include "libbfd.h"
  24
  25 /*
  26 SECTION
  27         Targets
  28
  29 DESCRIPTION
  30         Each port of BFD to a different machine requries the creation
  31         of a target back end. All the back end provides to the root
  32         part of BFD is a structure containing pointers to functions
  33         which perform certain low level operations on files. BFD
  34         translates the applications's requests through a pointer into
  35         calls to the back end routines.
  36
  37         When a file is opened with <<bfd_openr>>, its format and
  38         target are unknown. BFD uses various mechanisms to determine
  39         how to interpret the file. The operations performed are:
  40
  41         o First a BFD is created by calling the internal routine
  42         <<new_bfd>>, then <<bfd_find_target>> is called with the
  43         target string supplied to <<bfd_openr>> and the new BFD pointer.
  44
  45         o If a null target string was provided to <<bfd_find_target>>,
  46         it looks up the environment variable <<GNUTARGET>> and uses
  47         that as the target string.
  48
  49         o If the target string is still NULL, or the target string is
  50         <<default>>, then the first item in the target vector is used
  51         as the target type, and <<target_defaulted>> is set to
  52         cause <<bfd_check_format>> to loop through all the targets.
  53         @xref{bfd_target}.  @xref{Formats}.
  54
  55         o Otherwise, the elements in the target vector are inspected
  56         one by one, until a match on target name is found. When found,
  57         that is used.
  58
  59         o Otherwise the error <<invalid_target>> is returned to
  60         <<bfd_openr>>.
  61
  62         o <<bfd_openr>> attempts to open the file using
  63         <<bfd_open_file>>, and returns the BFD.
  64
  65         Once the BFD has been opened and the target selected, the file
  66         format may be determined. This is done by calling
  67         <<bfd_check_format>> on the BFD with a suggested format.
  68         If <<target_defaulted>> has been set, each possible target
  69         type is tried to see if it recognizes the specified format.  The
  70         routine returns <<true>> when the application guesses right.
  71 @menu
  72 @* bfd_target::
  73 @end menu
  74 */
  75
  76
  77 /*
  78
  79 INODE
  80         bfd_target,  , Targets, Targets
  81 DOCDD
  82 SUBSECTION
  83         bfd_target
  84
  85 DESCRIPTION
  86         This structure contains everything that BFD knows about a
  87         target. It includes things like its byte order, name, what
  88         routines to call to do various operations, etc.
  89
  90         Every BFD points to a target structure with its <<xvec>>
  91         member.
  92
  93         These macros are used to dispatch to functions through the
  94         bfd_target vector. They are used in a number of macros further
  95         down in @file{bfd.h}, and are also used when calling various
  96         routines by hand inside the BFD implementation.  The "arglist"
  97         argument must be parenthesized; it contains all the arguments
  98         to the called function.
  99
 100         They make the documentation (more) unpleasant to read, so if
 101         someone wants to fix this and not break the above, please do.
 102
 103 .#define BFD_SEND(bfd, message, arglist) \
 104 .               ((*((bfd)->xvec->message)) arglist)
 105
 106         For operations which index on the BFD format
 107
 108 .#define BFD_SEND_FMT(bfd, message, arglist) \
 109 .            (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
 110
 111         This is the struct which defines the type of BFD this is.  The
 112         <<xvec>> member of the struct <<bfd>> itself points here.  Each
 113         module that implements access to a different target under BFD,
 114         defines one of these.
 115
 116
 117         FIXME, these names should be rationalised with the names of
 118         the entry points which call them. Too bad we can't have one
 119         macro to define them both!
 120
 121 .typedef struct bfd_target
 122 .{
 123
 124 Identifies the kind of target, eg SunOS4, Ultrix, etc.
 125
 126 .  char *name;
 127
 128 The "flavour" of a back end is a general indication about the contents
 129 of a file.
 130
 131 .  enum target_flavour {
 132 .    bfd_target_unknown_flavour,
 133 .    bfd_target_aout_flavour,
 134 .    bfd_target_coff_flavour,
 135 .    bfd_target_ecoff_flavour,
 136 .    bfd_target_elf_flavour,
 137 .    bfd_target_ieee_flavour,
 138 .    bfd_target_nlm_flavour,
 139 .    bfd_target_oasys_flavour,
 140 .    bfd_target_tekhex_flavour,
 141 .    bfd_target_srec_flavour,
 142 .    bfd_target_hppa_flavour} flavour;
 143
 144 The order of bytes within the data area of a file.
 145
 146 .  boolean byteorder_big_p;
 147
 148 The order of bytes within the header parts of a file.
 149
 150 .  boolean header_byteorder_big_p;
 151
 152 This is a mask of all the flags which an executable may have set -
 153 from the set <<NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.
 154
 155 .  flagword object_flags;
 156
 157 This is a mask of all the flags which a section may have set - from
 158 the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.
 159
 160 .  flagword section_flags;
 161
 162 The character normally found at the front of a symbol
 163 (if any), perhaps _.
 164
 165 .  char symbol_leading_char;
 166
 167 The pad character for filenames within an archive header.
 168
 169 .  char ar_pad_char;
 170
 171 The maximum number of characters in an archive header.
 172
 173 .  unsigned short ar_max_namelen;
 174
 175 The minimum alignment restriction for any section.
 176
 177 .  unsigned int align_power_min;
 178
 179 Entries for byte swapping for data. These are different to the other
 180 entry points, since they don't take BFD as first arg.  Certain other handlers
 181 could do the same.
 182
 183 .  bfd_vma      (*bfd_getx64) PARAMS ((bfd_byte *));
 184 .  bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((bfd_byte *));
 185 .  void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
 186 .  bfd_vma      (*bfd_getx32) PARAMS ((bfd_byte *));
 187 .  bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((bfd_byte *));
 188 .  void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
 189 .  bfd_vma      (*bfd_getx16) PARAMS ((bfd_byte *));
 190 .  bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((bfd_byte *));
 191 .  void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
 192
 193 Byte swapping for the headers
 194
 195 .  bfd_vma      (*bfd_h_getx64) PARAMS ((bfd_byte *));
 196 .  bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((bfd_byte *));
 197 .  void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
 198 .  bfd_vma      (*bfd_h_getx32) PARAMS ((bfd_byte *));
 199 .  bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((bfd_byte *));
 200 .  void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
 201 .  bfd_vma      (*bfd_h_getx16) PARAMS ((bfd_byte *));
 202 .  bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((bfd_byte *));
 203 .  void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
 204
 205 Format dependent routines: these are vectors of entry points
 206 within the target vector structure, one for each format to check.
 207
 208 Check the format of a file being read.  Return bfd_target * or zero.
 209
 210 .  struct bfd_target * (*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
 211
 212 Set the format of a file being written.
 213
 214 .  boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
 215
 216 Write cached information into a file being written, at bfd_close.
 217
 218 .  boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
 219
 220 The following functions are defined in <<JUMP_TABLE>>. The idea is
 221 that the back end writer of <<foo>> names all the routines
 222 <<foo_>>@var{entry_point}, <<JUMP_TABLE>> will built the entries
 223 in this structure in the right order.
 224
 225 Core file entry points
 226
 227 .  char *   (*_core_file_failing_command) PARAMS ((bfd *));
 228 .  int      (*_core_file_failing_signal) PARAMS ((bfd *));
 229 .  boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
 230
 231 Archive entry points
 232
 233 .  boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
 234 .  boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
 235 .  void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
 236 .  boolean  (*write_armap) PARAMS ((bfd *arch,
 237 .                              unsigned int elength,
 238 .                              struct orl *map,
 239 .                              unsigned int orl_count,
 240 .                              int stridx));
 241
 242 Standard stuff.
 243
 244 .  boolean       (*_close_and_cleanup) PARAMS ((bfd *));
 245 .  boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
 246 .                                            file_ptr, bfd_size_type));
 247 .  boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
 248 .                                            file_ptr, bfd_size_type));
 249 .  boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
 250
 251 Symbols and relocations
 252
 253 .  unsigned int  (*_get_symtab_upper_bound) PARAMS ((bfd *));
 254 .  unsigned int  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
 255 .                                              struct symbol_cache_entry **));
 256 .  unsigned int  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
 257 .  unsigned int  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
 258 .                                              struct symbol_cache_entry **));
 259 .  struct symbol_cache_entry  *
 260 .                (*_bfd_make_empty_symbol) PARAMS ((bfd *));
 261 .  void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
 262 .                                      struct symbol_cache_entry *,
 263 .                                      bfd_print_symbol_type));
 264 .#define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
 265 .  void          (*_bfd_get_symbol_info) PARAMS ((bfd *,
 266 .                                      struct symbol_cache_entry *,
 267 .                                      symbol_info *));
 268 .#define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
 269
 270 .  alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
 271 .
 272 .  boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
 273 .                    unsigned long));
 274 .
 275 .  bfd *      (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
 276 .
 277 .  boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
 278 .                    struct sec *section, struct symbol_cache_entry **symbols,
 279 .                    bfd_vma offset, CONST char **file, CONST char **func,
 280 .                    unsigned int *line));
 281 .
 282 .  int        (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
 283 .
 284 .  int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
 285 .
 286 .  void       (*_bfd_debug_info_start) PARAMS ((bfd *));
 287 .  void       (*_bfd_debug_info_end) PARAMS ((bfd *));
 288 .  void       (*_bfd_debug_info_accumulate) PARAMS ((bfd *, struct sec *));
 289 .
 290 .  bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
 291 .                    struct bfd_seclet *, bfd_byte *data,
 292 .                    boolean relocateable));
 293 .
 294 .  boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
 295 .                    struct symbol_cache_entry **));
 296 .
 297 .  boolean    (*_bfd_seclet_link) PARAMS ((bfd *, PTR data,
 298 .                     boolean relocateable));
 299
 300 . {* See documentation on reloc types.  *}
 301 . CONST struct reloc_howto_struct *
 302 .       (*reloc_type_lookup) PARAMS ((bfd *abfd,
 303 .                                     bfd_reloc_code_real_type code));
 304 .
 305 . {* Back-door to allow format-aware applications to create debug symbols
 306 .    while using BFD for everything else.  Currently used by the assembler
 307 .    when creating COFF files.  *}
 308 . asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
 309 .       bfd *abfd,
 310 .       void *ptr,
 311 .       unsigned long size));
 312
 313 Data for use by back-end routines, which isn't generic enough to belong
 314 in this structure.
 315
 316 . PTR backend_data;
 317 .} bfd_target;
 318
 319 */
 320
 321 /* The default is to define a target_vector containing all the targets.
 322    By setting MINIMIZE=1 on the "make" command line, the user can change this
 323    to a vector containing just DEFAULT_VECTOR and any required
 324    traditional-core-file handler.  (This is to save space in the executables.)
 325    The config files can also override the default large vector by giving an
 326    explicit SELECT_VECS macro.  */
 327
 328 #if MINIMIZE && defined(DEFAULT_VECTOR) && !defined(SELECT_VECS)
 329 #ifdef TRAD_CORE
 330 #define SELECT_VECS &DEFAULT_VECTOR,&trad_core_vec
 331 #else
 332 #ifdef SCO_CORE
 333 #define SELECT_VECS &DEFAULT_VECTOR,&sco_core_vec
 334 #else
 335 #ifdef AIX386_CORE
 336 #define SELECT_VECS &DEFAULT_VECTOR,&aix386_core_vec
 337 #else
 338 #define SELECT_VECS &DEFAULT_VECTOR
 339 #endif
 340 #endif
 341 #endif
 342 #endif
 343
 344 /* All known xvecs.  They are listed a second time below, since
 345    we can't intermix extern's and initializers.  */
 346 extern bfd_target i386lynx_vec;
 347 extern bfd_target ecoff_little_vec;
 348 extern bfd_target ecoff_big_vec;
 349 extern bfd_target aout_mips_little_vec;
 350 extern bfd_target aout_mips_big_vec;
 351 extern bfd_target sunos_big_vec;
 352 extern bfd_target demo_64_vec;
 353 extern bfd_target srec_vec;
 354 extern bfd_target symbolsrec_vec;
 355 extern bfd_target tekhex_vec;
 356 extern bfd_target a_out_adobe_vec;
 357 extern bfd_target b_out_vec_little_host;
 358 extern bfd_target b_out_vec_big_host;
 359 extern bfd_target icoff_little_vec;
 360 extern bfd_target icoff_big_vec;
 361 extern bfd_target bfd_elf32_sparc_vec;
 362 extern bfd_target bfd_elf32_i386_vec;
 363 extern bfd_target bfd_elf32_m68k_vec;
 364 extern bfd_target bfd_elf32_i860_vec;
 365 extern bfd_target bfd_elf32_m88k_vec;
 366 extern bfd_target bfd_elf32_bigmips_vec;
 367 extern bfd_target bfd_elf32_littlemips_vec;
 368 extern bfd_target bfd_elf32_big_generic_vec;
 369 extern bfd_target bfd_elf32_little_generic_vec;
 370 extern bfd_target bfd_elf64_big_generic_vec;
 371 extern bfd_target bfd_elf64_little_generic_vec;
 372 extern bfd_target bfd_nlm32_big_generic_vec;
 373 extern bfd_target bfd_nlm32_little_generic_vec;
 374 extern bfd_target bfd_nlm64_big_generic_vec;
 375 extern bfd_target bfd_nlm64_little_generic_vec;
 376 extern bfd_target ieee_vec;
 377 extern bfd_target oasys_vec;
 378 extern bfd_target m88kbcs_vec;
 379 extern bfd_target m68kcoff_vec;
 380 extern bfd_target m68kcoffun_vec;
 381 extern bfd_target i386coff_vec;
 382 extern bfd_target i386aout_vec;
 383 extern bfd_target i386linux_vec;
 384 extern bfd_target a29kcoff_big_vec;
 385 extern bfd_target trad_core_vec;
 386 extern bfd_target sco_core_vec;
 387 extern bfd_target aix386_core_vec;
 388 extern bfd_target rs6000coff_vec;
 389 extern bfd_target h8300coff_vec;
 390 extern bfd_target h8500coff_vec;
 391 extern bfd_target z8kcoff_vec;
 392 extern bfd_target we32kcoff_vec;
 393 extern bfd_target shcoff_vec;
 394 extern bfd_target hp300hpux_vec;
 395
 396 #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD)
 397 extern bfd_target hppa_vec;
 398 #endif
 399
 400 #ifdef DEFAULT_VECTOR
 401 extern bfd_target DEFAULT_VECTOR;
 402 #endif
 403
 404 bfd_target *target_vector[] = {
 405
 406 #ifdef SELECT_VECS
 407
 408         SELECT_VECS,
 409
 410 #else /* not SELECT_VECS */
 411
 412 #ifdef DEFAULT_VECTOR
 413         &DEFAULT_VECTOR,
 414 #endif
 415
 416         &i386coff_vec,
 417         &i386aout_vec,
 418         &i386lynx_vec,
 419         &ecoff_little_vec,
 420         &ecoff_big_vec,
 421         &aout_mips_little_vec,
 422         &aout_mips_big_vec,
 423         &ieee_vec,
 424 #if 0
 425         /* We have no oasys tools anymore, so we can't test any of this
 426            anymore. If you want to test the stuff yourself, go ahead...
 427            steve@cygnus.com
 428            Worse, since there is no magic number for archives, there
 429            can annoying target mis-matches.  */
 430         &oasys_vec,
 431 #endif
 432         &sunos_big_vec,
 433 #ifdef BFD64
 434         &demo_64_vec,   /* Only compiled if host has long-long support */
 435 #endif
 436         &h8300coff_vec,
 437         &z8kcoff_vec,
 438         &m88kbcs_vec,
 439         &srec_vec,
 440         &symbolsrec_vec,
 441 /*      &tekhex_vec,*/
 442         &icoff_little_vec,
 443         &icoff_big_vec,
 444         &bfd_elf32_sparc_vec,
 445         &bfd_elf32_i386_vec,
 446         &bfd_elf32_m68k_vec,
 447         &bfd_elf32_i860_vec,
 448         &bfd_elf32_m88k_vec,
 449         &bfd_elf32_littlemips_vec,
 450         &bfd_elf32_bigmips_vec,
 451         &bfd_elf32_little_generic_vec,
 452         &bfd_elf32_big_generic_vec,
 453         &bfd_nlm32_little_generic_vec,
 454         &bfd_nlm32_big_generic_vec,
 455 #ifdef BFD64
 456         &bfd_elf64_little_generic_vec,
 457         &bfd_elf64_big_generic_vec,
 458         &bfd_nlm64_little_generic_vec,
 459         &bfd_nlm64_big_generic_vec,
 460 #endif
 461         &a_out_adobe_vec,
 462         &b_out_vec_little_host,
 463         &b_out_vec_big_host,
 464         &m68kcoff_vec,
 465         &m68kcoffun_vec,
 466         &a29kcoff_big_vec,
 467         &rs6000coff_vec,
 468 #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD)
 469         &hppa_vec,
 470 #endif
 471         &hp300hpux_vec,
 472         &we32kcoff_vec,
 473
 474 #ifdef  TRAD_CORE
 475         &trad_core_vec,
 476 #endif
 477 #ifdef  SCO_CORE
 478         &sco_core_vec,
 479 #endif
 480 #ifdef AIX386_CORE
 481         &aix386_core_vec,
 482 #endif
 483
 484 #endif /* not SELECT_VECS */
 485         NULL, /* end of list marker */
 486 };
 487
 488 /* default_vector[0] contains either the address of the default vector,
 489    if there is one, or zero if there isn't.  */
 490
 491 bfd_target *default_vector[] = {
 492 #ifdef DEFAULT_VECTOR
 493         &DEFAULT_VECTOR,
 494 #endif
 495         0,
 496 };
 497
 498
 499
 500
 501 /*
 502 FUNCTION
 503         bfd_find_target
 504
 505 DESCRIPTION
 506         Returns a pointer to the transfer vector for the object target
 507         named target_name.  If target_name is NULL, chooses the one in
 508         the environment variable GNUTARGET; if that is null or not
 509         defined thenthe first entry in the target list is chosen.
 510         Passing in the string "default" or setting the environment
 511         variable to "default" will cause the first entry in the target
 512         list to be returned, and "target_defaulted" will be set in the
 513         BFD.  This causes <<bfd_check_format>> to loop over all the
 514         targets to find the one that matches the file being read.
 515
 516 SYNOPSIS
 517         bfd_target *bfd_find_target(CONST char *, bfd *);
 518 */
 519
 520 bfd_target *
 521 DEFUN(bfd_find_target,(target_name, abfd),
 522       CONST char *target_name AND
 523       bfd *abfd)
 524 {
 525   bfd_target **target;
 526   extern char *getenv ();
 527   CONST char *targname = (target_name ? target_name :
 528                           (CONST char *) getenv ("GNUTARGET"));
 529
 530   /* This is safe; the vector cannot be null */
 531   if (targname == NULL || !strcmp (targname, "default")) {
 532     abfd->target_defaulted = true;
 533     return abfd->xvec = target_vector[0];
 534   }
 535
 536   abfd->target_defaulted = false;
 537
 538   for (target = &target_vector[0]; *target != NULL; target++) {
 539     if (!strcmp (targname, (*target)->name))
 540       return abfd->xvec = *target;
 541   }
 542
 543   bfd_error = invalid_target;
 544   return NULL;
 545 }
 546
 547
 548 /*
 549 FUNCTION
 550         bfd_target_list
 551
 552 DESCRIPTION
 553         This function returns a freshly malloced NULL-terminated
 554         vector of the names of all the valid BFD targets. Do not
 555         modify the names
 556
 557 SYNOPSIS
 558         CONST char **bfd_target_list(void);
 559
 560 */
 561
 562 CONST char **
 563 DEFUN_VOID(bfd_target_list)
 564 {
 565   int vec_length= 0;
 566 #ifdef NATIVE_HPPAHPUX_COMPILER
 567   /* The native compiler on the HP9000/700 has a bug which causes it
 568      to loop endlessly when compiling this file.  This avoids it.  */
 569   volatile
 570 #endif
 571     bfd_target **target;
 572   CONST  char **name_list, **name_ptr;
 573
 574   for (target = &target_vector[0]; *target != NULL; target++)
 575     vec_length++;
 576
 577   name_ptr =
 578     name_list = (CONST char **) zalloc ((vec_length + 1) * sizeof (char **));
 579
 580   if (name_list == NULL) {
 581     bfd_error = no_memory;
 582     return NULL;
 583   }
 584
 585   for (target = &target_vector[0]; *target != NULL; target++)
 586     *(name_ptr++) = (*target)->name;
 587
 588   return name_list;
 589 }