| 1 | /* nlmconv.c -- NLM conversion program |
| 2 | Copyright (C) 1993 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Binutils. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | /* Written by Ian Lance Taylor <ian@cygnus.com>. |
| 21 | |
| 22 | This program can be used to convert any appropriate object file |
| 23 | into a NetWare Loadable Module (an NLM). It will accept a linker |
| 24 | specification file which is identical to that accepted by the |
| 25 | NetWare linker, NLMLINK, except that the INPUT command, normally |
| 26 | used to give a list of object files to link together, is not used. |
| 27 | This program will convert only a single object file. */ |
| 28 | |
| 29 | #include <ansidecl.h> |
| 30 | #include <stdio.h> |
| 31 | #include <time.h> |
| 32 | #include <ctype.h> |
| 33 | #include <sys/types.h> |
| 34 | #include <sys/stat.h> |
| 35 | #include <sys/file.h> |
| 36 | #include <assert.h> |
| 37 | #include <getopt.h> |
| 38 | #include <bfd.h> |
| 39 | #include "sysdep.h" |
| 40 | #include "bucomm.h" |
| 41 | /* Internal BFD NLM header. */ |
| 42 | #include "libnlm.h" |
| 43 | #include "nlmconv.h" |
| 44 | |
| 45 | /* Needed for Alpha support. */ |
| 46 | #include "coff/sym.h" |
| 47 | #include "coff/ecoff.h" |
| 48 | |
| 49 | /* If strerror is just a macro, we want to use the one from libiberty |
| 50 | since it will handle undefined values. */ |
| 51 | #undef strerror |
| 52 | extern char *strerror (); |
| 53 | |
| 54 | #ifndef localtime |
| 55 | extern struct tm *localtime (); |
| 56 | #endif |
| 57 | |
| 58 | #ifndef getenv |
| 59 | extern char *getenv (); |
| 60 | #endif |
| 61 | |
| 62 | #ifndef SEEK_SET |
| 63 | #define SEEK_SET 0 |
| 64 | #endif |
| 65 | |
| 66 | #ifndef R_OK |
| 67 | #define R_OK 4 |
| 68 | #define W_OK 2 |
| 69 | #define X_OK 1 |
| 70 | #endif |
| 71 | \f |
| 72 | /* Global variables. */ |
| 73 | |
| 74 | /* The name used to invoke the program. */ |
| 75 | char *program_name; |
| 76 | |
| 77 | /* The version number. */ |
| 78 | extern char *program_version; |
| 79 | |
| 80 | /* Local variables. */ |
| 81 | |
| 82 | /* Whether to print out debugging information (currently just controls |
| 83 | whether it prints the linker command if there is one). */ |
| 84 | static int debug; |
| 85 | |
| 86 | /* The symbol table. */ |
| 87 | static asymbol **symbols; |
| 88 | |
| 89 | /* A temporary file name to be unlinked on exit. Actually, for most |
| 90 | errors, we leave it around. It's not clear whether that is helpful |
| 91 | or not. */ |
| 92 | static char *unlink_on_exit; |
| 93 | |
| 94 | /* The list of long options. */ |
| 95 | static struct option long_options[] = |
| 96 | { |
| 97 | { "debug", no_argument, 0, 'd' }, |
| 98 | { "header-file", required_argument, 0, 'T' }, |
| 99 | { "help", no_argument, 0, 'h' }, |
| 100 | { "input-target", required_argument, 0, 'I' }, |
| 101 | { "input-format", required_argument, 0, 'I' }, /* Obsolete */ |
| 102 | { "linker", required_argument, 0, 'l' }, |
| 103 | { "output-target", required_argument, 0, 'O' }, |
| 104 | { "output-format", required_argument, 0, 'O' }, /* Obsolete */ |
| 105 | { "version", no_argument, 0, 'V' }, |
| 106 | { NULL, no_argument, 0, 0 } |
| 107 | }; |
| 108 | |
| 109 | /* Local routines. */ |
| 110 | |
| 111 | static void show_help PARAMS ((void)); |
| 112 | static void show_usage PARAMS ((FILE *, int)); |
| 113 | static const char *select_output_format PARAMS ((enum bfd_architecture, |
| 114 | unsigned long, boolean)); |
| 115 | static void setup_sections PARAMS ((bfd *, asection *, PTR)); |
| 116 | static void copy_sections PARAMS ((bfd *, asection *, PTR)); |
| 117 | static void mangle_relocs PARAMS ((bfd *, asection *, arelent ***, |
| 118 | bfd_size_type *, char *, |
| 119 | bfd_size_type)); |
| 120 | static void i386_mangle_relocs PARAMS ((bfd *, asection *, arelent ***, |
| 121 | bfd_size_type *, char *, |
| 122 | bfd_size_type)); |
| 123 | static void alpha_mangle_relocs PARAMS ((bfd *, asection *, arelent ***, |
| 124 | bfd_size_type *, char *, |
| 125 | bfd_size_type)); |
| 126 | static void default_mangle_relocs PARAMS ((bfd *, asection *, arelent ***, |
| 127 | bfd_size_type *, char *, |
| 128 | bfd_size_type)); |
| 129 | static char *link_inputs PARAMS ((struct string_list *, char *)); |
| 130 | static const char *choose_temp_base_try PARAMS ((const char *, |
| 131 | const char *)); |
| 132 | static void choose_temp_base PARAMS ((void)); |
| 133 | static int pexecute PARAMS ((char *, char *[])); |
| 134 | \f |
| 135 | /* The main routine. */ |
| 136 | |
| 137 | int |
| 138 | main (argc, argv) |
| 139 | int argc; |
| 140 | char **argv; |
| 141 | { |
| 142 | int opt; |
| 143 | char *input_file = NULL; |
| 144 | const char *input_format = NULL; |
| 145 | const char *output_format = NULL; |
| 146 | const char *header_file = NULL; |
| 147 | char *ld_arg = NULL; |
| 148 | Nlm_Internal_Fixed_Header fixed_hdr_struct; |
| 149 | Nlm_Internal_Variable_Header var_hdr_struct; |
| 150 | Nlm_Internal_Version_Header version_hdr_struct; |
| 151 | Nlm_Internal_Copyright_Header copyright_hdr_struct; |
| 152 | Nlm_Internal_Extended_Header extended_hdr_struct; |
| 153 | bfd *inbfd; |
| 154 | bfd *outbfd; |
| 155 | asymbol **newsyms, **outsyms; |
| 156 | unsigned int symcount, newsymalloc, newsymcount; |
| 157 | asection *bss_sec, *data_sec; |
| 158 | bfd_vma vma; |
| 159 | bfd_size_type align; |
| 160 | asymbol *endsym; |
| 161 | unsigned int i; |
| 162 | char inlead, outlead; |
| 163 | boolean gotstart, gotexit, gotcheck; |
| 164 | struct stat st; |
| 165 | FILE *custom_data, *help_data, *message_data, *rpc_data, *shared_data; |
| 166 | size_t custom_size, help_size, message_size, module_size, rpc_size; |
| 167 | asection *custom_section, *help_section, *message_section, *module_section; |
| 168 | asection *rpc_section, *shared_section; |
| 169 | bfd *sharedbfd; |
| 170 | size_t shared_offset, shared_size; |
| 171 | Nlm_Internal_Fixed_Header sharedhdr; |
| 172 | int len; |
| 173 | char *modname; |
| 174 | char **matching; |
| 175 | |
| 176 | program_name = argv[0]; |
| 177 | |
| 178 | bfd_init (); |
| 179 | |
| 180 | while ((opt = getopt_long (argc, argv, "dhI:l:O:T:V", long_options, |
| 181 | (int *) NULL)) |
| 182 | != EOF) |
| 183 | { |
| 184 | switch (opt) |
| 185 | { |
| 186 | case 'd': |
| 187 | debug = 1; |
| 188 | break; |
| 189 | case 'h': |
| 190 | show_help (); |
| 191 | /*NOTREACHED*/ |
| 192 | case 'I': |
| 193 | input_format = optarg; |
| 194 | break; |
| 195 | case 'l': |
| 196 | ld_arg = optarg; |
| 197 | break; |
| 198 | case 'O': |
| 199 | output_format = optarg; |
| 200 | break; |
| 201 | case 'T': |
| 202 | header_file = optarg; |
| 203 | break; |
| 204 | case 'V': |
| 205 | printf ("GNU %s version %s\n", program_name, program_version); |
| 206 | exit (0); |
| 207 | /*NOTREACHED*/ |
| 208 | case 0: |
| 209 | break; |
| 210 | default: |
| 211 | show_usage (stderr, 1); |
| 212 | /*NOTREACHED*/ |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | /* The input and output files may be named on the command line. */ |
| 217 | output_file = NULL; |
| 218 | if (optind < argc) |
| 219 | { |
| 220 | input_file = argv[optind]; |
| 221 | ++optind; |
| 222 | if (optind < argc) |
| 223 | { |
| 224 | output_file = argv[optind]; |
| 225 | ++optind; |
| 226 | if (optind < argc) |
| 227 | show_usage (stderr, 1); |
| 228 | if (strcmp (input_file, output_file) == 0) |
| 229 | { |
| 230 | fprintf (stderr, |
| 231 | "%s: input and output files must be different\n", |
| 232 | program_name); |
| 233 | exit (1); |
| 234 | } |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | /* Initialize the header information to default values. */ |
| 239 | fixed_hdr = &fixed_hdr_struct; |
| 240 | memset ((PTR) &fixed_hdr_struct, 0, sizeof fixed_hdr_struct); |
| 241 | var_hdr = &var_hdr_struct; |
| 242 | memset ((PTR) &var_hdr_struct, 0, sizeof var_hdr_struct); |
| 243 | version_hdr = &version_hdr_struct; |
| 244 | memset ((PTR) &version_hdr_struct, 0, sizeof version_hdr_struct); |
| 245 | copyright_hdr = ©right_hdr_struct; |
| 246 | memset ((PTR) ©right_hdr_struct, 0, sizeof copyright_hdr_struct); |
| 247 | extended_hdr = &extended_hdr_struct; |
| 248 | memset ((PTR) &extended_hdr_struct, 0, sizeof extended_hdr_struct); |
| 249 | check_procedure = NULL; |
| 250 | custom_file = NULL; |
| 251 | debug_info = false; |
| 252 | exit_procedure = "_Stop"; |
| 253 | export_symbols = NULL; |
| 254 | map_file = NULL; |
| 255 | full_map = false; |
| 256 | help_file = NULL; |
| 257 | import_symbols = NULL; |
| 258 | message_file = NULL; |
| 259 | modules = NULL; |
| 260 | sharelib_file = NULL; |
| 261 | start_procedure = "_Prelude"; |
| 262 | verbose = false; |
| 263 | rpc_file = NULL; |
| 264 | |
| 265 | parse_errors = 0; |
| 266 | |
| 267 | /* Parse the header file (if there is one). */ |
| 268 | if (header_file != NULL) |
| 269 | { |
| 270 | if (! nlmlex_file (header_file) |
| 271 | || yyparse () != 0 |
| 272 | || parse_errors != 0) |
| 273 | exit (1); |
| 274 | } |
| 275 | |
| 276 | if (input_files != NULL) |
| 277 | { |
| 278 | if (input_file != NULL) |
| 279 | { |
| 280 | fprintf (stderr, |
| 281 | "%s: input file named both on command line and with INPUT\n", |
| 282 | program_name); |
| 283 | exit (1); |
| 284 | } |
| 285 | if (input_files->next == NULL) |
| 286 | input_file = input_files->string; |
| 287 | else |
| 288 | input_file = link_inputs (input_files, ld_arg); |
| 289 | } |
| 290 | else if (input_file == NULL) |
| 291 | { |
| 292 | fprintf (stderr, "%s: no input file\n", program_name); |
| 293 | show_usage (stderr, 1); |
| 294 | } |
| 295 | |
| 296 | inbfd = bfd_openr (input_file, input_format); |
| 297 | if (inbfd == NULL) |
| 298 | bfd_fatal (input_file); |
| 299 | |
| 300 | if (! bfd_check_format_matches (inbfd, bfd_object, &matching)) |
| 301 | { |
| 302 | bfd_nonfatal (input_file); |
| 303 | if (bfd_error == file_ambiguously_recognized) |
| 304 | { |
| 305 | list_matching_formats (matching); |
| 306 | free (matching); |
| 307 | } |
| 308 | exit (1); |
| 309 | } |
| 310 | |
| 311 | if (output_format == NULL) |
| 312 | output_format = select_output_format (bfd_get_arch (inbfd), |
| 313 | bfd_get_mach (inbfd), |
| 314 | inbfd->xvec->byteorder_big_p); |
| 315 | |
| 316 | assert (output_format != NULL); |
| 317 | |
| 318 | /* Use the output file named on the command line if it exists. |
| 319 | Otherwise use the file named in the OUTPUT statement. */ |
| 320 | if (output_file == NULL) |
| 321 | { |
| 322 | fprintf (stderr, "%s: no name for output file\n", |
| 323 | program_name); |
| 324 | show_usage (stderr, 1); |
| 325 | } |
| 326 | |
| 327 | outbfd = bfd_openw (output_file, output_format); |
| 328 | if (outbfd == NULL) |
| 329 | bfd_fatal (output_file); |
| 330 | if (! bfd_set_format (outbfd, bfd_object)) |
| 331 | bfd_fatal (output_file); |
| 332 | |
| 333 | assert (bfd_get_flavour (outbfd) == bfd_target_nlm_flavour); |
| 334 | |
| 335 | if (bfd_arch_get_compatible (inbfd, outbfd) == NULL) |
| 336 | fprintf (stderr, |
| 337 | "%s: warning:input and output formats are not compatible\n", |
| 338 | program_name); |
| 339 | |
| 340 | /* Move the values read from the command file into outbfd. */ |
| 341 | *nlm_fixed_header (outbfd) = fixed_hdr_struct; |
| 342 | *nlm_variable_header (outbfd) = var_hdr_struct; |
| 343 | *nlm_version_header (outbfd) = version_hdr_struct; |
| 344 | *nlm_copyright_header (outbfd) = copyright_hdr_struct; |
| 345 | *nlm_extended_header (outbfd) = extended_hdr_struct; |
| 346 | |
| 347 | /* Start copying the input BFD to the output BFD. */ |
| 348 | if (! bfd_set_file_flags (outbfd, bfd_get_file_flags (inbfd))) |
| 349 | bfd_fatal (bfd_get_filename (outbfd)); |
| 350 | |
| 351 | symbols = (asymbol **) xmalloc (get_symtab_upper_bound (inbfd)); |
| 352 | symcount = bfd_canonicalize_symtab (inbfd, symbols); |
| 353 | |
| 354 | /* Make sure we have a .bss section. */ |
| 355 | bss_sec = bfd_get_section_by_name (outbfd, NLM_UNINITIALIZED_DATA_NAME); |
| 356 | if (bss_sec == NULL) |
| 357 | { |
| 358 | bss_sec = bfd_make_section (outbfd, NLM_UNINITIALIZED_DATA_NAME); |
| 359 | if (bss_sec == NULL |
| 360 | || ! bfd_set_section_flags (outbfd, bss_sec, SEC_ALLOC) |
| 361 | || ! bfd_set_section_alignment (outbfd, bss_sec, 1)) |
| 362 | bfd_fatal ("make .bss section"); |
| 363 | } |
| 364 | |
| 365 | /* Set up the sections. */ |
| 366 | bfd_map_over_sections (inbfd, setup_sections, (PTR) outbfd); |
| 367 | |
| 368 | /* The .bss section immediately follows the .data section. */ |
| 369 | data_sec = bfd_get_section_by_name (outbfd, NLM_INITIALIZED_DATA_NAME); |
| 370 | if (data_sec != NULL) |
| 371 | { |
| 372 | bfd_size_type add; |
| 373 | |
| 374 | vma = bfd_get_section_size_before_reloc (data_sec); |
| 375 | align = 1 << bss_sec->alignment_power; |
| 376 | add = ((vma + align - 1) &~ (align - 1)) - vma; |
| 377 | vma += add; |
| 378 | if (! bfd_set_section_vma (outbfd, bss_sec, vma)) |
| 379 | bfd_fatal ("set .bss vma"); |
| 380 | if (add != 0) |
| 381 | { |
| 382 | bfd_size_type data_size; |
| 383 | |
| 384 | data_size = bfd_get_section_size_before_reloc (data_sec); |
| 385 | if (! bfd_set_section_size (outbfd, data_sec, data_size + add)) |
| 386 | bfd_fatal ("set .data size"); |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | /* Adjust symbol information. */ |
| 391 | inlead = bfd_get_symbol_leading_char (inbfd); |
| 392 | outlead = bfd_get_symbol_leading_char (outbfd); |
| 393 | gotstart = false; |
| 394 | gotexit = false; |
| 395 | gotcheck = false; |
| 396 | newsymalloc = 10; |
| 397 | newsyms = (asymbol **) xmalloc (newsymalloc * sizeof (asymbol *)); |
| 398 | newsymcount = 0; |
| 399 | endsym = NULL; |
| 400 | for (i = 0; i < symcount; i++) |
| 401 | { |
| 402 | register asymbol *sym; |
| 403 | |
| 404 | sym = symbols[i]; |
| 405 | |
| 406 | /* Add or remove a leading underscore. */ |
| 407 | if (inlead != outlead) |
| 408 | { |
| 409 | if (inlead != '\0') |
| 410 | { |
| 411 | if (bfd_asymbol_name (sym)[0] == inlead) |
| 412 | { |
| 413 | if (outlead == '\0') |
| 414 | ++sym->name; |
| 415 | else |
| 416 | { |
| 417 | char *new; |
| 418 | |
| 419 | new = xmalloc (strlen (bfd_asymbol_name (sym)) + 1); |
| 420 | new[0] = outlead; |
| 421 | strcpy (new + 1, bfd_asymbol_name (sym) + 1); |
| 422 | sym->name = new; |
| 423 | } |
| 424 | } |
| 425 | } |
| 426 | else |
| 427 | { |
| 428 | char *new; |
| 429 | |
| 430 | new = xmalloc (strlen (bfd_asymbol_name (sym)) + 2); |
| 431 | new[0] = outlead; |
| 432 | strcpy (new + 1, bfd_asymbol_name (sym)); |
| 433 | sym->name = new; |
| 434 | } |
| 435 | } |
| 436 | |
| 437 | /* NLM's have an uninitialized data section, but they do not |
| 438 | have a common section in the Unix sense. Move all common |
| 439 | symbols into the .bss section, and mark them as exported. */ |
| 440 | if (bfd_is_com_section (bfd_get_section (sym))) |
| 441 | { |
| 442 | bfd_vma size; |
| 443 | |
| 444 | sym->section = bss_sec; |
| 445 | size = sym->value; |
| 446 | sym->value = bss_sec->_raw_size; |
| 447 | bss_sec->_raw_size += size; |
| 448 | align = 1 << bss_sec->alignment_power; |
| 449 | bss_sec->_raw_size = (bss_sec->_raw_size + align - 1) &~ (align - 1); |
| 450 | sym->flags |= BSF_EXPORT | BSF_GLOBAL; |
| 451 | } |
| 452 | else if (bfd_get_section (sym)->output_section != NULL) |
| 453 | { |
| 454 | /* Move the symbol into the output section. */ |
| 455 | sym->value += bfd_get_section (sym)->output_offset; |
| 456 | sym->section = bfd_get_section (sym)->output_section; |
| 457 | /* This is no longer a section symbol. */ |
| 458 | sym->flags &=~ BSF_SECTION_SYM; |
| 459 | } |
| 460 | |
| 461 | /* Force _edata and _end to be defined. This would normally be |
| 462 | done by the linker, but the manipulation of the common |
| 463 | symbols will confuse it. */ |
| 464 | if (bfd_asymbol_name (sym)[0] == '_' |
| 465 | && bfd_get_section (sym) == &bfd_und_section) |
| 466 | { |
| 467 | if (strcmp (bfd_asymbol_name (sym), "_edata") == 0) |
| 468 | { |
| 469 | sym->section = bss_sec; |
| 470 | sym->value = 0; |
| 471 | } |
| 472 | if (strcmp (bfd_asymbol_name (sym), "_end") == 0) |
| 473 | { |
| 474 | sym->section = bss_sec; |
| 475 | endsym = sym; |
| 476 | } |
| 477 | } |
| 478 | |
| 479 | /* If this is a global symbol, check the export list. */ |
| 480 | if ((sym->flags & (BSF_EXPORT | BSF_GLOBAL)) != 0) |
| 481 | { |
| 482 | register struct string_list *l; |
| 483 | int found_simple; |
| 484 | |
| 485 | /* Unfortunately, a symbol can appear multiple times on the |
| 486 | export list, with and without prefixes. */ |
| 487 | found_simple = 0; |
| 488 | for (l = export_symbols; l != NULL; l = l->next) |
| 489 | { |
| 490 | if (strcmp (l->string, bfd_asymbol_name (sym)) == 0) |
| 491 | found_simple = 1; |
| 492 | else |
| 493 | { |
| 494 | char *zbase; |
| 495 | |
| 496 | zbase = strchr (l->string, '@'); |
| 497 | if (zbase != NULL |
| 498 | && strcmp (zbase + 1, bfd_asymbol_name (sym)) == 0) |
| 499 | { |
| 500 | /* We must add a symbol with this prefix. */ |
| 501 | if (newsymcount >= newsymalloc) |
| 502 | { |
| 503 | newsymalloc += 10; |
| 504 | newsyms = ((asymbol **) |
| 505 | xrealloc ((PTR) newsyms, |
| 506 | (newsymalloc |
| 507 | * sizeof (asymbol *)))); |
| 508 | } |
| 509 | newsyms[newsymcount] = |
| 510 | (asymbol *) xmalloc (sizeof (asymbol)); |
| 511 | *newsyms[newsymcount] = *sym; |
| 512 | newsyms[newsymcount]->name = l->string; |
| 513 | ++newsymcount; |
| 514 | } |
| 515 | } |
| 516 | } |
| 517 | if (! found_simple) |
| 518 | { |
| 519 | /* The unmodified symbol is actually not exported at |
| 520 | all. */ |
| 521 | sym->flags &=~ (BSF_GLOBAL | BSF_EXPORT); |
| 522 | sym->flags |= BSF_LOCAL; |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | /* If it's an undefined symbol, see if it's on the import list. |
| 527 | Change the prefix if necessary. */ |
| 528 | if (bfd_get_section (sym) == &bfd_und_section) |
| 529 | { |
| 530 | register struct string_list *l; |
| 531 | |
| 532 | for (l = import_symbols; l != NULL; l = l->next) |
| 533 | { |
| 534 | if (strcmp (l->string, bfd_asymbol_name (sym)) == 0) |
| 535 | break; |
| 536 | else |
| 537 | { |
| 538 | char *zbase; |
| 539 | |
| 540 | zbase = strchr (l->string, '@'); |
| 541 | if (zbase != NULL |
| 542 | && strcmp (zbase + 1, bfd_asymbol_name (sym)) == 0) |
| 543 | { |
| 544 | sym->name = l->string; |
| 545 | break; |
| 546 | } |
| 547 | } |
| 548 | } |
| 549 | if (l == NULL) |
| 550 | fprintf (stderr, |
| 551 | "%s: warning: symbol %s imported but not in import list\n", |
| 552 | program_name, bfd_asymbol_name (sym)); |
| 553 | } |
| 554 | |
| 555 | /* See if it's one of the special named symbols. */ |
| 556 | if (strcmp (bfd_asymbol_name (sym), start_procedure) == 0) |
| 557 | { |
| 558 | if (! bfd_set_start_address (outbfd, bfd_asymbol_value (sym))) |
| 559 | bfd_fatal ("set start address"); |
| 560 | gotstart = true; |
| 561 | } |
| 562 | if (strcmp (bfd_asymbol_name (sym), exit_procedure) == 0) |
| 563 | { |
| 564 | nlm_fixed_header (outbfd)->exitProcedureOffset = |
| 565 | bfd_asymbol_value (sym); |
| 566 | gotexit = true; |
| 567 | } |
| 568 | if (check_procedure != NULL |
| 569 | && strcmp (bfd_asymbol_name (sym), check_procedure) == 0) |
| 570 | { |
| 571 | nlm_fixed_header (outbfd)->checkUnloadProcedureOffset = |
| 572 | bfd_asymbol_value (sym); |
| 573 | gotcheck = true; |
| 574 | } |
| 575 | } |
| 576 | |
| 577 | if (endsym != NULL) |
| 578 | endsym->value = bfd_get_section_size_before_reloc (bss_sec); |
| 579 | |
| 580 | if (newsymcount == 0) |
| 581 | outsyms = symbols; |
| 582 | else |
| 583 | { |
| 584 | outsyms = (asymbol **) xmalloc ((symcount + newsymcount + 1) |
| 585 | * sizeof (asymbol *)); |
| 586 | memcpy (outsyms, symbols, symcount * sizeof (asymbol *)); |
| 587 | memcpy (outsyms + symcount, newsyms, newsymcount * sizeof (asymbol *)); |
| 588 | outsyms[symcount + newsymcount] = NULL; |
| 589 | } |
| 590 | |
| 591 | bfd_set_symtab (outbfd, outsyms, symcount + newsymcount); |
| 592 | |
| 593 | if (! gotstart) |
| 594 | fprintf (stderr, "%s: warning: START procedure %s not defined\n", |
| 595 | program_name, start_procedure); |
| 596 | if (! gotexit) |
| 597 | fprintf (stderr, "%s: warning: EXIT procedure %s not defined\n", |
| 598 | program_name, exit_procedure); |
| 599 | if (check_procedure != NULL |
| 600 | && ! gotcheck) |
| 601 | fprintf (stderr, "%s: warning: CHECK procedure %s not defined\n", |
| 602 | program_name, check_procedure); |
| 603 | |
| 604 | /* Add additional sections required for the header information. */ |
| 605 | if (custom_file != NULL) |
| 606 | { |
| 607 | custom_data = fopen (custom_file, "r"); |
| 608 | if (custom_data == NULL |
| 609 | || fstat (fileno (custom_data), &st) < 0) |
| 610 | { |
| 611 | fprintf (stderr, "%s:%s: %s\n", program_name, custom_file, |
| 612 | strerror (errno)); |
| 613 | custom_file = NULL; |
| 614 | } |
| 615 | else |
| 616 | { |
| 617 | custom_size = st.st_size; |
| 618 | custom_section = bfd_make_section (outbfd, ".nlmcustom"); |
| 619 | if (custom_section == NULL |
| 620 | || ! bfd_set_section_size (outbfd, custom_section, custom_size) |
| 621 | || ! bfd_set_section_flags (outbfd, custom_section, |
| 622 | SEC_HAS_CONTENTS)) |
| 623 | bfd_fatal ("custom section"); |
| 624 | } |
| 625 | } |
| 626 | if (help_file != NULL) |
| 627 | { |
| 628 | help_data = fopen (help_file, "r"); |
| 629 | if (help_data == NULL |
| 630 | || fstat (fileno (help_data), &st) < 0) |
| 631 | { |
| 632 | fprintf (stderr, "%s:%s: %s\n", program_name, help_file, |
| 633 | strerror (errno)); |
| 634 | help_file = NULL; |
| 635 | } |
| 636 | else |
| 637 | { |
| 638 | help_size = st.st_size; |
| 639 | help_section = bfd_make_section (outbfd, ".nlmhelp"); |
| 640 | if (help_section == NULL |
| 641 | || ! bfd_set_section_size (outbfd, help_section, help_size) |
| 642 | || ! bfd_set_section_flags (outbfd, help_section, |
| 643 | SEC_HAS_CONTENTS)) |
| 644 | bfd_fatal ("help section"); |
| 645 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); |
| 646 | } |
| 647 | } |
| 648 | if (message_file != NULL) |
| 649 | { |
| 650 | message_data = fopen (message_file, "r"); |
| 651 | if (message_data == NULL |
| 652 | || fstat (fileno (message_data), &st) < 0) |
| 653 | { |
| 654 | fprintf (stderr, "%s:%s: %s\n", program_name, message_file, |
| 655 | strerror (errno)); |
| 656 | message_file = NULL; |
| 657 | } |
| 658 | else |
| 659 | { |
| 660 | message_size = st.st_size; |
| 661 | message_section = bfd_make_section (outbfd, ".nlmmessages"); |
| 662 | if (message_section == NULL |
| 663 | || ! bfd_set_section_size (outbfd, message_section, message_size) |
| 664 | || ! bfd_set_section_flags (outbfd, message_section, |
| 665 | SEC_HAS_CONTENTS)) |
| 666 | bfd_fatal ("message section"); |
| 667 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); |
| 668 | } |
| 669 | } |
| 670 | if (modules != NULL) |
| 671 | { |
| 672 | struct string_list *l; |
| 673 | |
| 674 | module_size = 0; |
| 675 | for (l = modules; l != NULL; l = l->next) |
| 676 | module_size += strlen (l->string) + 1; |
| 677 | module_section = bfd_make_section (outbfd, ".nlmmodules"); |
| 678 | if (module_section == NULL |
| 679 | || ! bfd_set_section_size (outbfd, module_section, module_size) |
| 680 | || ! bfd_set_section_flags (outbfd, module_section, |
| 681 | SEC_HAS_CONTENTS)) |
| 682 | bfd_fatal ("module section"); |
| 683 | } |
| 684 | if (rpc_file != NULL) |
| 685 | { |
| 686 | rpc_data = fopen (rpc_file, "r"); |
| 687 | if (rpc_data == NULL |
| 688 | || fstat (fileno (rpc_data), &st) < 0) |
| 689 | { |
| 690 | fprintf (stderr, "%s:%s: %s\n", program_name, rpc_file, |
| 691 | strerror (errno)); |
| 692 | rpc_file = NULL; |
| 693 | } |
| 694 | else |
| 695 | { |
| 696 | rpc_size = st.st_size; |
| 697 | rpc_section = bfd_make_section (outbfd, ".nlmrpc"); |
| 698 | if (rpc_section == NULL |
| 699 | || ! bfd_set_section_size (outbfd, rpc_section, rpc_size) |
| 700 | || ! bfd_set_section_flags (outbfd, rpc_section, |
| 701 | SEC_HAS_CONTENTS)) |
| 702 | bfd_fatal ("rpc section"); |
| 703 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); |
| 704 | } |
| 705 | } |
| 706 | if (sharelib_file != NULL) |
| 707 | { |
| 708 | sharedbfd = bfd_openr (sharelib_file, output_format); |
| 709 | if (sharedbfd == NULL |
| 710 | || ! bfd_check_format (sharedbfd, bfd_object)) |
| 711 | { |
| 712 | fprintf (stderr, "%s:%s: %s\n", program_name, sharelib_file, |
| 713 | bfd_errmsg (bfd_error)); |
| 714 | sharelib_file = NULL; |
| 715 | } |
| 716 | else |
| 717 | { |
| 718 | sharedhdr = *nlm_fixed_header (sharedbfd); |
| 719 | bfd_close (sharedbfd); |
| 720 | shared_data = fopen (sharelib_file, "r"); |
| 721 | if (shared_data == NULL |
| 722 | || (fstat (fileno (shared_data), &st) < 0)) |
| 723 | { |
| 724 | fprintf (stderr, "%s:%s: %s\n", program_name, sharelib_file, |
| 725 | strerror (errno)); |
| 726 | sharelib_file = NULL; |
| 727 | } |
| 728 | else |
| 729 | { |
| 730 | /* If we were clever, we could just copy out the |
| 731 | sections of the shared library which we actually |
| 732 | need. However, we would have to figure out the sizes |
| 733 | of the external and public information, and that can |
| 734 | not be done without reading through them. */ |
| 735 | if (sharedhdr.uninitializedDataSize > 0) |
| 736 | { |
| 737 | /* There is no place to record this information. */ |
| 738 | fprintf (stderr, |
| 739 | "%s:%s: warning: shared libraries can not have uninitialized data\n", |
| 740 | program_name, sharelib_file); |
| 741 | } |
| 742 | shared_offset = st.st_size; |
| 743 | if (shared_offset > sharedhdr.codeImageOffset) |
| 744 | shared_offset = sharedhdr.codeImageOffset; |
| 745 | if (shared_offset > sharedhdr.dataImageOffset) |
| 746 | shared_offset = sharedhdr.dataImageOffset; |
| 747 | if (shared_offset > sharedhdr.relocationFixupOffset) |
| 748 | shared_offset = sharedhdr.relocationFixupOffset; |
| 749 | if (shared_offset > sharedhdr.externalReferencesOffset) |
| 750 | shared_offset = sharedhdr.externalReferencesOffset; |
| 751 | if (shared_offset > sharedhdr.publicsOffset) |
| 752 | shared_offset = sharedhdr.publicsOffset; |
| 753 | shared_size = st.st_size - shared_offset; |
| 754 | shared_section = bfd_make_section (outbfd, ".nlmshared"); |
| 755 | if (shared_section == NULL |
| 756 | || ! bfd_set_section_size (outbfd, shared_section, |
| 757 | shared_size) |
| 758 | || ! bfd_set_section_flags (outbfd, shared_section, |
| 759 | SEC_HAS_CONTENTS)) |
| 760 | bfd_fatal ("shared section"); |
| 761 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); |
| 762 | } |
| 763 | } |
| 764 | } |
| 765 | |
| 766 | /* Check whether a version was given. */ |
| 767 | if (strncmp (version_hdr->stamp, "VeRsIoN#", 8) != 0) |
| 768 | fprintf (stderr, "%s: warning: No version number given\n", |
| 769 | program_name); |
| 770 | |
| 771 | /* At least for now, always create an extended header, because that |
| 772 | is what NLMLINK does. */ |
| 773 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); |
| 774 | |
| 775 | /* If the date was not given, force it in. */ |
| 776 | if (nlm_version_header (outbfd)->month == 0 |
| 777 | && nlm_version_header (outbfd)->day == 0 |
| 778 | && nlm_version_header (outbfd)->year == 0) |
| 779 | { |
| 780 | time_t now; |
| 781 | struct tm *ptm; |
| 782 | |
| 783 | time (&now); |
| 784 | ptm = localtime (&now); |
| 785 | nlm_version_header (outbfd)->month = ptm->tm_mon + 1; |
| 786 | nlm_version_header (outbfd)->day = ptm->tm_mday; |
| 787 | nlm_version_header (outbfd)->year = ptm->tm_year + 1900; |
| 788 | strncpy (version_hdr->stamp, "VeRsIoN#", 8); |
| 789 | } |
| 790 | |
| 791 | /* Copy over the sections. */ |
| 792 | bfd_map_over_sections (inbfd, copy_sections, (PTR) outbfd); |
| 793 | |
| 794 | /* Finish up the header information. */ |
| 795 | if (custom_file != NULL) |
| 796 | { |
| 797 | PTR data; |
| 798 | |
| 799 | data = xmalloc (custom_size); |
| 800 | if (fread (data, 1, custom_size, custom_data) != custom_size) |
| 801 | fprintf (stderr, "%s:%s: read: %s\n", program_name, custom_file, |
| 802 | strerror (errno)); |
| 803 | else |
| 804 | { |
| 805 | if (! bfd_set_section_contents (outbfd, custom_section, data, |
| 806 | (file_ptr) 0, custom_size)) |
| 807 | bfd_fatal ("custom section"); |
| 808 | nlm_fixed_header (outbfd)->customDataOffset = |
| 809 | custom_section->filepos; |
| 810 | nlm_fixed_header (outbfd)->customDataSize = custom_size; |
| 811 | } |
| 812 | free (data); |
| 813 | } |
| 814 | if (! debug_info) |
| 815 | { |
| 816 | /* As a special hack, the backend recognizes a debugInfoOffset |
| 817 | of -1 to mean that it should not output any debugging |
| 818 | information. This can not be handling by fiddling with the |
| 819 | symbol table because exported symbols appear in both the |
| 820 | export information and the debugging information. */ |
| 821 | nlm_fixed_header (outbfd)->debugInfoOffset = (file_ptr) -1; |
| 822 | } |
| 823 | if (map_file != NULL) |
| 824 | fprintf (stderr, |
| 825 | "%s: warning: MAP and FULLMAP are not supported; try ld -M\n", |
| 826 | program_name); |
| 827 | if (help_file != NULL) |
| 828 | { |
| 829 | PTR data; |
| 830 | |
| 831 | data = xmalloc (help_size); |
| 832 | if (fread (data, 1, help_size, help_data) != help_size) |
| 833 | fprintf (stderr, "%s:%s: read: %s\n", program_name, help_file, |
| 834 | strerror (errno)); |
| 835 | else |
| 836 | { |
| 837 | if (! bfd_set_section_contents (outbfd, help_section, data, |
| 838 | (file_ptr) 0, help_size)) |
| 839 | bfd_fatal ("help section"); |
| 840 | nlm_extended_header (outbfd)->helpFileOffset = |
| 841 | help_section->filepos; |
| 842 | nlm_extended_header (outbfd)->helpFileLength = help_size; |
| 843 | } |
| 844 | free (data); |
| 845 | } |
| 846 | if (message_file != NULL) |
| 847 | { |
| 848 | PTR data; |
| 849 | |
| 850 | data = xmalloc (message_size); |
| 851 | if (fread (data, 1, message_size, message_data) != message_size) |
| 852 | fprintf (stderr, "%s:%s: read: %s\n", program_name, message_file, |
| 853 | strerror (errno)); |
| 854 | else |
| 855 | { |
| 856 | if (! bfd_set_section_contents (outbfd, message_section, data, |
| 857 | (file_ptr) 0, message_size)) |
| 858 | bfd_fatal ("message section"); |
| 859 | nlm_extended_header (outbfd)->messageFileOffset = |
| 860 | message_section->filepos; |
| 861 | nlm_extended_header (outbfd)->messageFileLength = message_size; |
| 862 | |
| 863 | /* FIXME: Are these offsets correct on all platforms? Are |
| 864 | they 32 bits on all platforms? What endianness? */ |
| 865 | nlm_extended_header (outbfd)->languageID = |
| 866 | bfd_h_get_32 (outbfd, (bfd_byte *) data + 106); |
| 867 | nlm_extended_header (outbfd)->messageCount = |
| 868 | bfd_h_get_32 (outbfd, (bfd_byte *) data + 110); |
| 869 | } |
| 870 | free (data); |
| 871 | } |
| 872 | if (modules != NULL) |
| 873 | { |
| 874 | PTR data; |
| 875 | unsigned char *set; |
| 876 | struct string_list *l; |
| 877 | bfd_size_type c; |
| 878 | |
| 879 | data = xmalloc (module_size); |
| 880 | c = 0; |
| 881 | set = (unsigned char *) data; |
| 882 | for (l = modules; l != NULL; l = l->next) |
| 883 | { |
| 884 | *set = strlen (l->string); |
| 885 | strncpy (set + 1, l->string, *set); |
| 886 | set += *set + 1; |
| 887 | ++c; |
| 888 | } |
| 889 | if (! bfd_set_section_contents (outbfd, module_section, data, |
| 890 | (file_ptr) 0, module_size)) |
| 891 | bfd_fatal ("module section"); |
| 892 | nlm_fixed_header (outbfd)->moduleDependencyOffset = |
| 893 | module_section->filepos; |
| 894 | nlm_fixed_header (outbfd)->numberOfModuleDependencies = c; |
| 895 | } |
| 896 | if (rpc_file != NULL) |
| 897 | { |
| 898 | PTR data; |
| 899 | |
| 900 | data = xmalloc (rpc_size); |
| 901 | if (fread (data, 1, rpc_size, rpc_data) != rpc_size) |
| 902 | fprintf (stderr, "%s:%s: read: %s\n", program_name, rpc_file, |
| 903 | strerror (errno)); |
| 904 | else |
| 905 | { |
| 906 | if (! bfd_set_section_contents (outbfd, rpc_section, data, |
| 907 | (file_ptr) 0, rpc_size)) |
| 908 | bfd_fatal ("rpc section"); |
| 909 | nlm_extended_header (outbfd)->RPCDataOffset = |
| 910 | rpc_section->filepos; |
| 911 | nlm_extended_header (outbfd)->RPCDataLength = rpc_size; |
| 912 | } |
| 913 | free (data); |
| 914 | } |
| 915 | if (sharelib_file != NULL) |
| 916 | { |
| 917 | PTR data; |
| 918 | |
| 919 | data = xmalloc (shared_size); |
| 920 | if (fseek (shared_data, shared_offset, SEEK_SET) != 0 |
| 921 | || fread (data, 1, shared_size, shared_data) != shared_size) |
| 922 | fprintf (stderr, "%s:%s: read: %s\n", program_name, sharelib_file, |
| 923 | strerror (errno)); |
| 924 | else |
| 925 | { |
| 926 | if (! bfd_set_section_contents (outbfd, shared_section, data, |
| 927 | (file_ptr) 0, shared_size)) |
| 928 | bfd_fatal ("shared section"); |
| 929 | } |
| 930 | nlm_extended_header (outbfd)->sharedCodeOffset = |
| 931 | sharedhdr.codeImageOffset - shared_offset + shared_section->filepos; |
| 932 | nlm_extended_header (outbfd)->sharedCodeLength = |
| 933 | sharedhdr.codeImageSize; |
| 934 | nlm_extended_header (outbfd)->sharedDataOffset = |
| 935 | sharedhdr.dataImageOffset - shared_offset + shared_section->filepos; |
| 936 | nlm_extended_header (outbfd)->sharedDataLength = |
| 937 | sharedhdr.dataImageSize; |
| 938 | nlm_extended_header (outbfd)->sharedRelocationFixupOffset = |
| 939 | (sharedhdr.relocationFixupOffset |
| 940 | - shared_offset |
| 941 | + shared_section->filepos); |
| 942 | nlm_extended_header (outbfd)->sharedRelocationFixupCount = |
| 943 | sharedhdr.numberOfRelocationFixups; |
| 944 | nlm_extended_header (outbfd)->sharedExternalReferenceOffset = |
| 945 | (sharedhdr.externalReferencesOffset |
| 946 | - shared_offset |
| 947 | + shared_section->filepos); |
| 948 | nlm_extended_header (outbfd)->sharedExternalReferenceCount = |
| 949 | sharedhdr.numberOfExternalReferences; |
| 950 | nlm_extended_header (outbfd)->sharedPublicsOffset = |
| 951 | sharedhdr.publicsOffset - shared_offset + shared_section->filepos; |
| 952 | nlm_extended_header (outbfd)->sharedPublicsCount = |
| 953 | sharedhdr.numberOfPublics; |
| 954 | nlm_extended_header (outbfd)->sharedDebugRecordOffset = |
| 955 | sharedhdr.debugInfoOffset - shared_offset + shared_section->filepos; |
| 956 | nlm_extended_header (outbfd)->sharedDebugRecordCount = |
| 957 | sharedhdr.numberOfDebugRecords; |
| 958 | nlm_extended_header (outbfd)->SharedInitializationOffset = |
| 959 | sharedhdr.codeStartOffset; |
| 960 | nlm_extended_header (outbfd)->SharedExitProcedureOffset = |
| 961 | sharedhdr.exitProcedureOffset; |
| 962 | free (data); |
| 963 | } |
| 964 | len = strlen (output_file); |
| 965 | if (len > NLM_MODULE_NAME_SIZE - 2) |
| 966 | len = NLM_MODULE_NAME_SIZE - 2; |
| 967 | nlm_fixed_header (outbfd)->moduleName[0] = len; |
| 968 | |
| 969 | strncpy (nlm_fixed_header (outbfd)->moduleName + 1, output_file, |
| 970 | NLM_MODULE_NAME_SIZE - 2); |
| 971 | nlm_fixed_header (outbfd)->moduleName[NLM_MODULE_NAME_SIZE - 1] = '\0'; |
| 972 | for (modname = nlm_fixed_header (outbfd)->moduleName; |
| 973 | *modname != '\0'; |
| 974 | modname++) |
| 975 | if (islower (*modname)) |
| 976 | *modname = toupper (*modname); |
| 977 | |
| 978 | strncpy (nlm_variable_header (outbfd)->oldThreadName, " LONG", |
| 979 | NLM_OLD_THREAD_NAME_LENGTH); |
| 980 | |
| 981 | if (! bfd_close (outbfd)) |
| 982 | bfd_fatal (output_file); |
| 983 | if (! bfd_close (inbfd)) |
| 984 | bfd_fatal (input_file); |
| 985 | |
| 986 | if (unlink_on_exit != NULL) |
| 987 | unlink (unlink_on_exit); |
| 988 | |
| 989 | return 0; |
| 990 | } |
| 991 | \f |
| 992 | /* Display a help message and exit. */ |
| 993 | |
| 994 | static void |
| 995 | show_help () |
| 996 | { |
| 997 | printf ("%s: Convert an object file into a NetWare Loadable Module\n", |
| 998 | program_name); |
| 999 | show_usage (stdout, 0); |
| 1000 | } |
| 1001 | |
| 1002 | /* Show a usage message and exit. */ |
| 1003 | |
| 1004 | static void |
| 1005 | show_usage (file, status) |
| 1006 | FILE *file; |
| 1007 | int status; |
| 1008 | { |
| 1009 | fprintf (file, "\ |
| 1010 | Usage: %s [-dhV] [-I bfdname] [-O bfdname] [-T header-file] [-l linker]\n\ |
| 1011 | [--input-target=bfdname] [--output-target=bfdname]\n\ |
| 1012 | [--header-file=file] [--linker=linker] [--debug]\n\ |
| 1013 | [--help] [--version]\n\ |
| 1014 | [in-file [out-file]]\n", |
| 1015 | program_name); |
| 1016 | exit (status); |
| 1017 | } |
| 1018 | \f |
| 1019 | /* Select the output format based on the input architecture, machine, |
| 1020 | and endianness. This chooses the appropriate NLM target. */ |
| 1021 | |
| 1022 | static const char * |
| 1023 | select_output_format (arch, mach, bigendian) |
| 1024 | enum bfd_architecture arch; |
| 1025 | unsigned long mach; |
| 1026 | boolean bigendian; |
| 1027 | { |
| 1028 | switch (arch) |
| 1029 | { |
| 1030 | case bfd_arch_i386: |
| 1031 | return "nlm32-i386"; |
| 1032 | case bfd_arch_sparc: |
| 1033 | return "nlm32-sparc"; |
| 1034 | case bfd_arch_alpha: |
| 1035 | return "nlm32-alpha"; |
| 1036 | default: |
| 1037 | fprintf (stderr, "%s: no default NLM format for %s\n", |
| 1038 | program_name, bfd_printable_arch_mach (arch, mach)); |
| 1039 | exit (1); |
| 1040 | /* Avoid warning. */ |
| 1041 | return NULL; |
| 1042 | } |
| 1043 | /*NOTREACHED*/ |
| 1044 | } |
| 1045 | \f |
| 1046 | /* The BFD sections are copied in two passes. This function selects |
| 1047 | the output section for each input section, and sets up the section |
| 1048 | name, size, etc. */ |
| 1049 | |
| 1050 | static void |
| 1051 | setup_sections (inbfd, insec, data_ptr) |
| 1052 | bfd *inbfd; |
| 1053 | asection *insec; |
| 1054 | PTR data_ptr; |
| 1055 | { |
| 1056 | bfd *outbfd = (bfd *) data_ptr; |
| 1057 | flagword f; |
| 1058 | const char *outname; |
| 1059 | asection *outsec; |
| 1060 | bfd_vma offset; |
| 1061 | bfd_size_type align; |
| 1062 | bfd_size_type add; |
| 1063 | |
| 1064 | /* FIXME: We don't want to copy the .reginfo section of an ECOFF |
| 1065 | file. However, I don't have a good way to describe this section. |
| 1066 | We do want to copy the section when using objcopy. */ |
| 1067 | if (bfd_get_flavour (inbfd) == bfd_target_ecoff_flavour |
| 1068 | && strcmp (bfd_section_name (inbfd, insec), ".reginfo") == 0) |
| 1069 | return; |
| 1070 | |
| 1071 | f = bfd_get_section_flags (inbfd, insec); |
| 1072 | if (f & SEC_CODE) |
| 1073 | outname = NLM_CODE_NAME; |
| 1074 | else if ((f & SEC_LOAD) && (f & SEC_HAS_CONTENTS)) |
| 1075 | outname = NLM_INITIALIZED_DATA_NAME; |
| 1076 | else if (f & SEC_ALLOC) |
| 1077 | outname = NLM_UNINITIALIZED_DATA_NAME; |
| 1078 | else |
| 1079 | outname = bfd_section_name (inbfd, insec); |
| 1080 | |
| 1081 | outsec = bfd_get_section_by_name (outbfd, outname); |
| 1082 | if (outsec == NULL) |
| 1083 | { |
| 1084 | outsec = bfd_make_section (outbfd, outname); |
| 1085 | if (outsec == NULL) |
| 1086 | bfd_fatal ("make section"); |
| 1087 | } |
| 1088 | |
| 1089 | insec->output_section = outsec; |
| 1090 | |
| 1091 | offset = bfd_section_size (outbfd, outsec); |
| 1092 | align = 1 << bfd_section_alignment (inbfd, insec); |
| 1093 | add = ((offset + align - 1) &~ (align - 1)) - offset; |
| 1094 | insec->output_offset = offset + add; |
| 1095 | |
| 1096 | if (! bfd_set_section_size (outbfd, outsec, |
| 1097 | (bfd_section_size (outbfd, outsec) |
| 1098 | + bfd_section_size (inbfd, insec) |
| 1099 | + add))) |
| 1100 | bfd_fatal ("set section size"); |
| 1101 | |
| 1102 | if ((bfd_section_alignment (inbfd, insec) |
| 1103 | > bfd_section_alignment (outbfd, outsec)) |
| 1104 | && ! bfd_set_section_alignment (outbfd, outsec, |
| 1105 | bfd_section_alignment (inbfd, insec))) |
| 1106 | bfd_fatal ("set section alignment"); |
| 1107 | |
| 1108 | if (! bfd_set_section_flags (outbfd, outsec, f)) |
| 1109 | bfd_fatal ("set section flags"); |
| 1110 | |
| 1111 | bfd_set_reloc (outbfd, outsec, (arelent **) NULL, 0); |
| 1112 | } |
| 1113 | |
| 1114 | /* Copy the section contents. */ |
| 1115 | |
| 1116 | static void |
| 1117 | copy_sections (inbfd, insec, data_ptr) |
| 1118 | bfd *inbfd; |
| 1119 | asection *insec; |
| 1120 | PTR data_ptr; |
| 1121 | { |
| 1122 | bfd *outbfd = (bfd *) data_ptr; |
| 1123 | asection *outsec; |
| 1124 | bfd_size_type size; |
| 1125 | PTR contents; |
| 1126 | bfd_size_type reloc_size; |
| 1127 | |
| 1128 | /* FIXME: We don't want to copy the .reginfo section of an ECOFF |
| 1129 | file. However, I don't have a good way to describe this section. |
| 1130 | We do want to copy the section when using objcopy. */ |
| 1131 | if (bfd_get_flavour (inbfd) == bfd_target_ecoff_flavour |
| 1132 | && strcmp (bfd_section_name (inbfd, insec), ".reginfo") == 0) |
| 1133 | return; |
| 1134 | |
| 1135 | outsec = insec->output_section; |
| 1136 | assert (outsec != NULL); |
| 1137 | |
| 1138 | size = bfd_get_section_size_before_reloc (insec); |
| 1139 | if (size == 0) |
| 1140 | return; |
| 1141 | |
| 1142 | /* FIXME: Why are these necessary? */ |
| 1143 | insec->_cooked_size = insec->_raw_size; |
| 1144 | insec->reloc_done = true; |
| 1145 | |
| 1146 | if ((bfd_get_section_flags (inbfd, insec) & SEC_HAS_CONTENTS) == 0) |
| 1147 | contents = NULL; |
| 1148 | else |
| 1149 | { |
| 1150 | contents = xmalloc (size); |
| 1151 | if (! bfd_get_section_contents (inbfd, insec, contents, |
| 1152 | (file_ptr) 0, size)) |
| 1153 | bfd_fatal (bfd_get_filename (inbfd)); |
| 1154 | } |
| 1155 | |
| 1156 | reloc_size = bfd_get_reloc_upper_bound (inbfd, insec); |
| 1157 | if (reloc_size != 0) |
| 1158 | { |
| 1159 | arelent **relocs; |
| 1160 | bfd_size_type reloc_count; |
| 1161 | |
| 1162 | relocs = (arelent **) xmalloc (reloc_size); |
| 1163 | reloc_count = bfd_canonicalize_reloc (inbfd, insec, relocs, symbols); |
| 1164 | mangle_relocs (outbfd, insec, &relocs, &reloc_count, (char *) contents, |
| 1165 | size); |
| 1166 | |
| 1167 | /* FIXME: refers to internal BFD fields. */ |
| 1168 | if (outsec->orelocation != (arelent **) NULL) |
| 1169 | { |
| 1170 | bfd_size_type total_count; |
| 1171 | arelent **combined; |
| 1172 | |
| 1173 | total_count = reloc_count + outsec->reloc_count; |
| 1174 | combined = (arelent **) xmalloc (total_count * sizeof (arelent)); |
| 1175 | memcpy (combined, outsec->orelocation, |
| 1176 | outsec->reloc_count * sizeof (arelent)); |
| 1177 | memcpy (combined + outsec->reloc_count, relocs, |
| 1178 | (size_t) (reloc_count * sizeof (arelent))); |
| 1179 | free (outsec->orelocation); |
| 1180 | reloc_count = total_count; |
| 1181 | relocs = combined; |
| 1182 | } |
| 1183 | |
| 1184 | bfd_set_reloc (outbfd, outsec, relocs, reloc_count); |
| 1185 | } |
| 1186 | |
| 1187 | if (contents != NULL) |
| 1188 | { |
| 1189 | if (! bfd_set_section_contents (outbfd, outsec, contents, |
| 1190 | insec->output_offset, size)) |
| 1191 | bfd_fatal (bfd_get_filename (outbfd)); |
| 1192 | free (contents); |
| 1193 | } |
| 1194 | } |
| 1195 | |
| 1196 | /* Some, perhaps all, NetWare targets require changing the relocs used |
| 1197 | by the input formats. */ |
| 1198 | |
| 1199 | static void |
| 1200 | mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents, |
| 1201 | contents_size) |
| 1202 | bfd *outbfd; |
| 1203 | asection *insec; |
| 1204 | arelent ***relocs_ptr; |
| 1205 | bfd_size_type *reloc_count_ptr; |
| 1206 | char *contents; |
| 1207 | bfd_size_type contents_size; |
| 1208 | { |
| 1209 | switch (bfd_get_arch (outbfd)) |
| 1210 | { |
| 1211 | case bfd_arch_i386: |
| 1212 | i386_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, |
| 1213 | contents, contents_size); |
| 1214 | break; |
| 1215 | case bfd_arch_alpha: |
| 1216 | alpha_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, |
| 1217 | contents, contents_size); |
| 1218 | break; |
| 1219 | default: |
| 1220 | default_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, |
| 1221 | contents, contents_size); |
| 1222 | break; |
| 1223 | } |
| 1224 | } |
| 1225 | |
| 1226 | /* By default all we need to do for relocs is change the address by |
| 1227 | the output_offset. */ |
| 1228 | |
| 1229 | /*ARGSUSED*/ |
| 1230 | static void |
| 1231 | default_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents, |
| 1232 | contents_size) |
| 1233 | bfd *outbfd; |
| 1234 | asection *insec; |
| 1235 | arelent ***relocs_ptr; |
| 1236 | bfd_size_type *reloc_count_ptr; |
| 1237 | char *contents; |
| 1238 | bfd_size_type contents_size; |
| 1239 | { |
| 1240 | if (insec->output_offset != 0) |
| 1241 | { |
| 1242 | bfd_size_type reloc_count; |
| 1243 | register arelent **relocs; |
| 1244 | register bfd_size_type i; |
| 1245 | |
| 1246 | reloc_count = *reloc_count_ptr; |
| 1247 | relocs = *relocs_ptr; |
| 1248 | for (i = 0; i < reloc_count; i++, relocs++) |
| 1249 | (*relocs)->address += insec->output_offset; |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | /* NetWare on the i386 supports a restricted set of relocs, which are |
| 1254 | different from those used on other i386 targets. This routine |
| 1255 | converts the relocs. It is, obviously, very target dependent. At |
| 1256 | the moment, the nlm32-i386 backend performs similar translations; |
| 1257 | however, it is more reliable and efficient to do them here. */ |
| 1258 | |
| 1259 | static reloc_howto_type nlm_i386_pcrel_howto = |
| 1260 | HOWTO (1, /* type */ |
| 1261 | 0, /* rightshift */ |
| 1262 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1263 | 32, /* bitsize */ |
| 1264 | true, /* pc_relative */ |
| 1265 | 0, /* bitpos */ |
| 1266 | complain_overflow_signed, /* complain_on_overflow */ |
| 1267 | 0, /* special_function */ |
| 1268 | "DISP32", /* name */ |
| 1269 | true, /* partial_inplace */ |
| 1270 | 0xffffffff, /* src_mask */ |
| 1271 | 0xffffffff, /* dst_mask */ |
| 1272 | true); /* pcrel_offset */ |
| 1273 | |
| 1274 | static void |
| 1275 | i386_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents, |
| 1276 | contents_size) |
| 1277 | bfd *outbfd; |
| 1278 | asection *insec; |
| 1279 | arelent ***relocs_ptr; |
| 1280 | bfd_size_type *reloc_count_ptr; |
| 1281 | char *contents; |
| 1282 | bfd_size_type contents_size; |
| 1283 | { |
| 1284 | bfd_size_type reloc_count, i; |
| 1285 | arelent **relocs; |
| 1286 | |
| 1287 | reloc_count = *reloc_count_ptr; |
| 1288 | relocs = *relocs_ptr; |
| 1289 | for (i = 0; i < reloc_count; i++) |
| 1290 | { |
| 1291 | arelent *rel; |
| 1292 | asymbol *sym; |
| 1293 | bfd_size_type address; |
| 1294 | bfd_vma addend; |
| 1295 | |
| 1296 | rel = *relocs++; |
| 1297 | sym = *rel->sym_ptr_ptr; |
| 1298 | |
| 1299 | /* We're moving the relocs from the input section to the output |
| 1300 | section, so we must adjust the address accordingly. */ |
| 1301 | address = rel->address; |
| 1302 | rel->address += insec->output_offset; |
| 1303 | |
| 1304 | /* Note that no serious harm will ensue if we fail to change a |
| 1305 | reloc. The backend will fail when writing out the reloc. */ |
| 1306 | |
| 1307 | /* Make sure this reloc is within the data we have. We use only |
| 1308 | 4 byte relocs here, so we insist on having 4 bytes. */ |
| 1309 | if (address + 4 > contents_size) |
| 1310 | continue; |
| 1311 | |
| 1312 | /* A PC relative reloc entirely within a single section is |
| 1313 | completely unnecessary. This can be generated by ld -r. */ |
| 1314 | if (sym == insec->symbol |
| 1315 | && rel->howto != NULL |
| 1316 | && rel->howto->pc_relative |
| 1317 | && ! rel->howto->pcrel_offset) |
| 1318 | { |
| 1319 | --*reloc_count_ptr; |
| 1320 | --relocs; |
| 1321 | memmove (relocs, relocs + 1, |
| 1322 | (size_t) ((reloc_count - i) * sizeof (arelent *))); |
| 1323 | continue; |
| 1324 | } |
| 1325 | |
| 1326 | /* Get the amount the relocation will add in. */ |
| 1327 | addend = rel->addend + sym->value; |
| 1328 | |
| 1329 | /* NetWare doesn't support PC relative relocs against defined |
| 1330 | symbols, so we have to eliminate them by doing the relocation |
| 1331 | now. We can only do this if the reloc is within a single |
| 1332 | section. */ |
| 1333 | if (rel->howto != NULL |
| 1334 | && rel->howto->pc_relative |
| 1335 | && bfd_get_section (sym) == insec->output_section) |
| 1336 | { |
| 1337 | bfd_vma val; |
| 1338 | |
| 1339 | if (rel->howto->pcrel_offset) |
| 1340 | addend -= address; |
| 1341 | |
| 1342 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + address); |
| 1343 | val += addend; |
| 1344 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + address); |
| 1345 | |
| 1346 | --*reloc_count_ptr; |
| 1347 | --relocs; |
| 1348 | memmove (relocs, relocs + 1, |
| 1349 | (size_t) ((reloc_count - i) * sizeof (arelent *))); |
| 1350 | continue; |
| 1351 | } |
| 1352 | |
| 1353 | /* NetWare doesn't support reloc addends, so we get rid of them |
| 1354 | here by simply adding them into the object data. We handle |
| 1355 | the symbol value, if any, the same way. */ |
| 1356 | if (addend != 0 |
| 1357 | && rel->howto != NULL |
| 1358 | && rel->howto->rightshift == 0 |
| 1359 | && rel->howto->size == 2 |
| 1360 | && rel->howto->bitsize == 32 |
| 1361 | && rel->howto->bitpos == 0 |
| 1362 | && rel->howto->src_mask == 0xffffffff |
| 1363 | && rel->howto->dst_mask == 0xffffffff) |
| 1364 | { |
| 1365 | bfd_vma val; |
| 1366 | |
| 1367 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + address); |
| 1368 | val += addend; |
| 1369 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + address); |
| 1370 | |
| 1371 | /* Adjust the reloc for the changes we just made. */ |
| 1372 | rel->addend = 0; |
| 1373 | if (bfd_get_section (sym) != &bfd_und_section) |
| 1374 | rel->sym_ptr_ptr = bfd_get_section (sym)->symbol_ptr_ptr; |
| 1375 | } |
| 1376 | |
| 1377 | /* NetWare uses a reloc with pcrel_offset set. We adjust |
| 1378 | pc_relative relocs accordingly. We are going to change the |
| 1379 | howto field, so we can only do this if the current one is |
| 1380 | compatible. We should check that special_function is NULL |
| 1381 | here, but at the moment coff-i386 uses a special_function |
| 1382 | which does not affect what we are doing here. */ |
| 1383 | if (rel->howto != NULL |
| 1384 | && rel->howto->pc_relative |
| 1385 | && ! rel->howto->pcrel_offset |
| 1386 | && rel->howto->rightshift == 0 |
| 1387 | && rel->howto->size == 2 |
| 1388 | && rel->howto->bitsize == 32 |
| 1389 | && rel->howto->bitpos == 0 |
| 1390 | && rel->howto->src_mask == 0xffffffff |
| 1391 | && rel->howto->dst_mask == 0xffffffff) |
| 1392 | { |
| 1393 | bfd_vma val; |
| 1394 | |
| 1395 | /* When pcrel_offset is not set, it means that the negative |
| 1396 | of the address of the memory location is stored in the |
| 1397 | memory location. We must add it back in. */ |
| 1398 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + address); |
| 1399 | val += address; |
| 1400 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + address); |
| 1401 | |
| 1402 | /* We must change to a new howto. */ |
| 1403 | rel->howto = &nlm_i386_pcrel_howto; |
| 1404 | } |
| 1405 | } |
| 1406 | } |
| 1407 | |
| 1408 | /* On the Alpha the first reloc for every section must be a special |
| 1409 | relocs which hold the GP address. Also, the first reloc in the |
| 1410 | file must be a special reloc which holds the address of the .lita |
| 1411 | section. */ |
| 1412 | |
| 1413 | static reloc_howto_type nlm32_alpha_nw_howto = |
| 1414 | HOWTO (ALPHA_R_NW_RELOC, /* type */ |
| 1415 | 0, /* rightshift */ |
| 1416 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1417 | 0, /* bitsize */ |
| 1418 | false, /* pc_relative */ |
| 1419 | 0, /* bitpos */ |
| 1420 | complain_overflow_dont, /* complain_on_overflow */ |
| 1421 | 0, /* special_function */ |
| 1422 | "NW_RELOC", /* name */ |
| 1423 | false, /* partial_inplace */ |
| 1424 | 0, /* src_mask */ |
| 1425 | 0, /* dst_mask */ |
| 1426 | false); /* pcrel_offset */ |
| 1427 | |
| 1428 | /*ARGSUSED*/ |
| 1429 | static void |
| 1430 | alpha_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents, |
| 1431 | contents_size) |
| 1432 | bfd *outbfd; |
| 1433 | asection *insec; |
| 1434 | register arelent ***relocs_ptr; |
| 1435 | bfd_size_type *reloc_count_ptr; |
| 1436 | char *contents; |
| 1437 | bfd_size_type contents_size; |
| 1438 | { |
| 1439 | bfd_size_type old_reloc_count; |
| 1440 | arelent **old_relocs; |
| 1441 | register arelent **relocs; |
| 1442 | |
| 1443 | old_reloc_count = *reloc_count_ptr; |
| 1444 | old_relocs = *relocs_ptr; |
| 1445 | relocs = (arelent **) xmalloc ((old_reloc_count + 3) * sizeof (arelent *)); |
| 1446 | *relocs_ptr = relocs; |
| 1447 | |
| 1448 | if (nlm_alpha_backend_data (outbfd)->lita_address == 0) |
| 1449 | { |
| 1450 | bfd *inbfd; |
| 1451 | asection *lita_section; |
| 1452 | |
| 1453 | inbfd = insec->owner; |
| 1454 | lita_section = bfd_get_section_by_name (inbfd, _LITA); |
| 1455 | if (lita_section != (asection *) NULL) |
| 1456 | { |
| 1457 | nlm_alpha_backend_data (outbfd)->lita_address = |
| 1458 | bfd_get_section_vma (inbfd, lita_section); |
| 1459 | nlm_alpha_backend_data (outbfd)->lita_size = |
| 1460 | bfd_section_size (inbfd, lita_section); |
| 1461 | } |
| 1462 | else |
| 1463 | { |
| 1464 | /* Avoid outputting this reloc again. */ |
| 1465 | nlm_alpha_backend_data (outbfd)->lita_address = 4; |
| 1466 | } |
| 1467 | |
| 1468 | *relocs = (arelent *) xmalloc (sizeof (arelent)); |
| 1469 | (*relocs)->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; |
| 1470 | (*relocs)->address = nlm_alpha_backend_data (outbfd)->lita_address; |
| 1471 | (*relocs)->addend = nlm_alpha_backend_data (outbfd)->lita_size + 1; |
| 1472 | (*relocs)->howto = &nlm32_alpha_nw_howto; |
| 1473 | ++relocs; |
| 1474 | ++(*reloc_count_ptr); |
| 1475 | } |
| 1476 | |
| 1477 | /* Get the GP value from bfd. It is in the .reginfo section. */ |
| 1478 | if (nlm_alpha_backend_data (outbfd)->gp == 0) |
| 1479 | { |
| 1480 | bfd *inbfd; |
| 1481 | asection *reginfo_sec; |
| 1482 | struct ecoff_reginfo sreginfo; |
| 1483 | |
| 1484 | inbfd = insec->owner; |
| 1485 | assert (bfd_get_flavour (inbfd) == bfd_target_ecoff_flavour); |
| 1486 | reginfo_sec = bfd_get_section_by_name (inbfd, REGINFO); |
| 1487 | if (reginfo_sec != (asection *) NULL |
| 1488 | && bfd_get_section_contents (inbfd, reginfo_sec, |
| 1489 | (PTR) &sreginfo, (file_ptr) 0, |
| 1490 | sizeof sreginfo) != false) |
| 1491 | nlm_alpha_backend_data (outbfd)->gp = sreginfo.gp_value; |
| 1492 | } |
| 1493 | |
| 1494 | *relocs = (arelent *) xmalloc (sizeof (arelent)); |
| 1495 | (*relocs)->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; |
| 1496 | (*relocs)->address = nlm_alpha_backend_data (outbfd)->gp; |
| 1497 | (*relocs)->addend = 0; |
| 1498 | (*relocs)->howto = &nlm32_alpha_nw_howto; |
| 1499 | ++relocs; |
| 1500 | ++(*reloc_count_ptr); |
| 1501 | |
| 1502 | memcpy ((PTR) relocs, (PTR) old_relocs, |
| 1503 | (size_t) old_reloc_count * sizeof (arelent *)); |
| 1504 | relocs[old_reloc_count] = (arelent *) NULL; |
| 1505 | |
| 1506 | free (old_relocs); |
| 1507 | |
| 1508 | if (insec->output_offset != 0) |
| 1509 | { |
| 1510 | register bfd_size_type i; |
| 1511 | |
| 1512 | for (i = 0; i < old_reloc_count; i++, relocs++) |
| 1513 | (*relocs)->address += insec->output_offset; |
| 1514 | } |
| 1515 | } |
| 1516 | \f |
| 1517 | /* Name of linker. */ |
| 1518 | #ifndef LD_NAME |
| 1519 | #define LD_NAME "ld" |
| 1520 | #endif |
| 1521 | |
| 1522 | /* Temporary file name base. */ |
| 1523 | static char *temp_filename; |
| 1524 | |
| 1525 | /* The user has specified several input files. Invoke the linker to |
| 1526 | link them all together, and convert and delete the resulting output |
| 1527 | file. */ |
| 1528 | |
| 1529 | static char * |
| 1530 | link_inputs (inputs, ld) |
| 1531 | struct string_list *inputs; |
| 1532 | char *ld; |
| 1533 | { |
| 1534 | size_t c; |
| 1535 | struct string_list *q; |
| 1536 | char **argv; |
| 1537 | size_t i; |
| 1538 | int pid; |
| 1539 | int status; |
| 1540 | |
| 1541 | c = 0; |
| 1542 | for (q = inputs; q != NULL; q = q->next) |
| 1543 | ++c; |
| 1544 | |
| 1545 | argv = (char **) alloca (c + 5); |
| 1546 | |
| 1547 | #ifndef __MSDOS__ |
| 1548 | if (ld == NULL) |
| 1549 | { |
| 1550 | char *p; |
| 1551 | |
| 1552 | /* Find the linker to invoke based on how nlmconv was run. */ |
| 1553 | p = program_name + strlen (program_name); |
| 1554 | while (p != program_name) |
| 1555 | { |
| 1556 | if (p[-1] == '/') |
| 1557 | { |
| 1558 | ld = (char *) xmalloc (p - program_name + strlen (LD_NAME) + 1); |
| 1559 | memcpy (ld, program_name, p - program_name); |
| 1560 | strcpy (ld + (p - program_name), LD_NAME); |
| 1561 | break; |
| 1562 | } |
| 1563 | --p; |
| 1564 | } |
| 1565 | } |
| 1566 | #endif |
| 1567 | |
| 1568 | if (ld == NULL) |
| 1569 | ld = (char *) LD_NAME; |
| 1570 | |
| 1571 | choose_temp_base (); |
| 1572 | |
| 1573 | unlink_on_exit = xmalloc (strlen (temp_filename) + 3); |
| 1574 | sprintf (unlink_on_exit, "%s.O", temp_filename); |
| 1575 | |
| 1576 | argv[0] = ld; |
| 1577 | argv[1] = (char *) "-r"; |
| 1578 | argv[2] = (char *) "-o"; |
| 1579 | argv[3] = unlink_on_exit; |
| 1580 | i = 4; |
| 1581 | for (q = inputs; q != NULL; q = q->next, i++) |
| 1582 | argv[i] = q->string; |
| 1583 | argv[i] = NULL; |
| 1584 | |
| 1585 | if (debug) |
| 1586 | { |
| 1587 | for (i = 0; argv[i] != NULL; i++) |
| 1588 | fprintf (stderr, " %s", argv[i]); |
| 1589 | fprintf (stderr, "\n"); |
| 1590 | } |
| 1591 | |
| 1592 | pid = pexecute (ld, argv); |
| 1593 | |
| 1594 | if (waitpid (pid, &status, 0) < 0) |
| 1595 | { |
| 1596 | perror ("waitpid"); |
| 1597 | unlink (unlink_on_exit); |
| 1598 | exit (1); |
| 1599 | } |
| 1600 | |
| 1601 | if (status != 0) |
| 1602 | { |
| 1603 | fprintf (stderr, "%s: Execution of %s failed\n", program_name, ld); |
| 1604 | unlink (unlink_on_exit); |
| 1605 | exit (1); |
| 1606 | } |
| 1607 | |
| 1608 | return unlink_on_exit; |
| 1609 | } |
| 1610 | |
| 1611 | /* Choose a temporary file name. Stolen from gcc.c. */ |
| 1612 | |
| 1613 | static const char * |
| 1614 | choose_temp_base_try (try, base) |
| 1615 | const char *try; |
| 1616 | const char *base; |
| 1617 | { |
| 1618 | const char *rv; |
| 1619 | |
| 1620 | if (base) |
| 1621 | rv = base; |
| 1622 | else if (try == NULL) |
| 1623 | rv = NULL; |
| 1624 | else if (access (try, R_OK | W_OK) != 0) |
| 1625 | rv = NULL; |
| 1626 | else |
| 1627 | rv = try; |
| 1628 | return rv; |
| 1629 | } |
| 1630 | |
| 1631 | static void |
| 1632 | choose_temp_base () |
| 1633 | { |
| 1634 | const char *base = NULL; |
| 1635 | int len; |
| 1636 | |
| 1637 | base = choose_temp_base_try (getenv ("TMPDIR"), base); |
| 1638 | base = choose_temp_base_try (getenv ("TMP"), base); |
| 1639 | base = choose_temp_base_try (getenv ("TEMP"), base); |
| 1640 | |
| 1641 | #ifdef P_tmpdir |
| 1642 | base = choose_temp_base_try (P_tmpdir, base); |
| 1643 | #endif |
| 1644 | |
| 1645 | base = choose_temp_base_try ("/usr/tmp", base); |
| 1646 | base = choose_temp_base_try ("/tmp", base); |
| 1647 | |
| 1648 | /* If all else fails, use the current directory! */ |
| 1649 | if (base == NULL) |
| 1650 | base = "./"; |
| 1651 | |
| 1652 | len = strlen (base); |
| 1653 | temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1); |
| 1654 | strcpy (temp_filename, base); |
| 1655 | if (len > 0 && temp_filename[len-1] != '/') |
| 1656 | temp_filename[len++] = '/'; |
| 1657 | strcpy (temp_filename + len, "ccXXXXXX"); |
| 1658 | |
| 1659 | mktemp (temp_filename); |
| 1660 | if (*temp_filename == '\0') |
| 1661 | abort (); |
| 1662 | } |
| 1663 | |
| 1664 | /* Execute a job. Stolen from gcc.c. */ |
| 1665 | |
| 1666 | #ifndef OS2 |
| 1667 | #ifdef __MSDOS__ |
| 1668 | |
| 1669 | static int |
| 1670 | pexecute (program, argv) |
| 1671 | char *program; |
| 1672 | char *argv[]; |
| 1673 | { |
| 1674 | char *scmd, *rf; |
| 1675 | FILE *argfile; |
| 1676 | int i; |
| 1677 | |
| 1678 | scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 10); |
| 1679 | rf = scmd + strlen(program) + 2 + el; |
| 1680 | sprintf (scmd, "%s.exe @%s.gp", program, temp_filename); |
| 1681 | argfile = fopen (rf, "w"); |
| 1682 | if (argfile == 0) |
| 1683 | pfatal_with_name (rf); |
| 1684 | |
| 1685 | for (i=1; argv[i]; i++) |
| 1686 | { |
| 1687 | char *cp; |
| 1688 | for (cp = argv[i]; *cp; cp++) |
| 1689 | { |
| 1690 | if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp)) |
| 1691 | fputc ('\\', argfile); |
| 1692 | fputc (*cp, argfile); |
| 1693 | } |
| 1694 | fputc ('\n', argfile); |
| 1695 | } |
| 1696 | fclose (argfile); |
| 1697 | |
| 1698 | i = system (scmd); |
| 1699 | |
| 1700 | remove (rf); |
| 1701 | |
| 1702 | if (i == -1) |
| 1703 | { |
| 1704 | perror (program); |
| 1705 | return MIN_FATAL_STATUS << 8; |
| 1706 | } |
| 1707 | |
| 1708 | return i << 8; |
| 1709 | } |
| 1710 | |
| 1711 | #else /* not __MSDOS__ */ |
| 1712 | |
| 1713 | static int |
| 1714 | pexecute (program, argv) |
| 1715 | char *program; |
| 1716 | char *argv[]; |
| 1717 | { |
| 1718 | int pid; |
| 1719 | int retries, sleep_interval; |
| 1720 | |
| 1721 | /* Fork a subprocess; wait and retry if it fails. */ |
| 1722 | sleep_interval = 1; |
| 1723 | for (retries = 0; retries < 4; retries++) |
| 1724 | { |
| 1725 | pid = vfork (); |
| 1726 | if (pid >= 0) |
| 1727 | break; |
| 1728 | sleep (sleep_interval); |
| 1729 | sleep_interval *= 2; |
| 1730 | } |
| 1731 | |
| 1732 | switch (pid) |
| 1733 | { |
| 1734 | case -1: |
| 1735 | #ifdef vfork |
| 1736 | perror ("fork"); |
| 1737 | #else |
| 1738 | perror ("vfork"); |
| 1739 | #endif |
| 1740 | exit (1); |
| 1741 | /* NOTREACHED */ |
| 1742 | return 0; |
| 1743 | |
| 1744 | case 0: /* child */ |
| 1745 | /* Exec the program. */ |
| 1746 | execvp (program, argv); |
| 1747 | perror (program); |
| 1748 | exit (1); |
| 1749 | /* NOTREACHED */ |
| 1750 | return 0; |
| 1751 | |
| 1752 | default: |
| 1753 | /* Return child's process number. */ |
| 1754 | return pid; |
| 1755 | } |
| 1756 | } |
| 1757 | |
| 1758 | #endif /* not __MSDOS__ */ |
| 1759 | #else /* not OS2 */ |
| 1760 | |
| 1761 | static int |
| 1762 | pexecute (program, argv) |
| 1763 | char *program; |
| 1764 | char *argv[]; |
| 1765 | { |
| 1766 | return spawnvp (1, program, argv); |
| 1767 | } |
| 1768 | #endif /* not OS2 */ |