1/* dllwrap.c -- wrapper for DLLTOOL and GCC to generate PE style DLLs 2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. 3 Contributed by Mumit Khan (khan@xraylith.wisc.edu). 4 5 This file is part of GNU Binutils. 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., 51 Franklin Street - Fifth Floor, Boston, MA 20 02110-1301, USA. */ 21 22/* AIX requires this to be the first thing in the file. */ 23#ifndef __GNUC__ 24# ifdef _AIX 25 #pragma alloca 26#endif 27#endif 28 29#ifdef HAVE_CONFIG_H 30#include "config.h" 31#endif 32 33#include "bfd.h" 34#include "libiberty.h" 35#include "bucomm.h" 36#include "getopt.h" 37#include "dyn-string.h" 38 39#include <time.h> 40#include <sys/stat.h> 41#include <stdarg.h> 42 43#ifdef HAVE_SYS_WAIT_H 44#include <sys/wait.h> 45#else /* ! HAVE_SYS_WAIT_H */ 46#if ! defined (_WIN32) || defined (__CYGWIN32__) 47#ifndef WIFEXITED 48#define WIFEXITED(w) (((w)&0377) == 0) 49#endif 50#ifndef WIFSIGNALED 51#define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0) 52#endif 53#ifndef WTERMSIG 54#define WTERMSIG(w) ((w) & 0177) 55#endif 56#ifndef WEXITSTATUS 57#define WEXITSTATUS(w) (((w) >> 8) & 0377) 58#endif 59#else /* defined (_WIN32) && ! defined (__CYGWIN32__) */ 60#ifndef WIFEXITED 61#define WIFEXITED(w) (((w) & 0xff) == 0) 62#endif 63#ifndef WIFSIGNALED 64#define WIFSIGNALED(w) (((w) & 0xff) != 0 && ((w) & 0xff) != 0x7f) 65#endif 66#ifndef WTERMSIG 67#define WTERMSIG(w) ((w) & 0x7f) 68#endif 69#ifndef WEXITSTATUS 70#define WEXITSTATUS(w) (((w) & 0xff00) >> 8) 71#endif 72#endif /* defined (_WIN32) && ! defined (__CYGWIN32__) */ 73#endif /* ! HAVE_SYS_WAIT_H */ 74 75static char *driver_name = NULL; 76static char *cygwin_driver_flags = 77 "-Wl,--dll -nostartfiles"; 78static char *mingw32_driver_flags = "-mdll"; 79static char *generic_driver_flags = "-Wl,--dll"; 80 81static char *entry_point; 82 83static char *dlltool_name = NULL; 84 85static char *target = TARGET; 86 87typedef enum { 88 UNKNOWN_TARGET, 89 CYGWIN_TARGET, 90 MINGW_TARGET 91} 92target_type; 93 94static target_type which_target = UNKNOWN_TARGET; 95 96static int dontdeltemps = 0; 97static int dry_run = 0; 98 99static char *prog_name; 100 101static int verbose = 0; 102 103static char *dll_file_name; 104static char *dll_name; 105static char *base_file_name; 106static char *exp_file_name; 107static char *def_file_name; 108static int delete_base_file = 1; 109static int delete_exp_file = 1; 110static int delete_def_file = 1; 111 112static int run (const char *, char *); 113static char *mybasename (const char *); 114static int strhash (const char *); 115static void usage (FILE *, int); 116static void display (const char *, va_list) ATTRIBUTE_PRINTF(1,0); 117static void inform (const char *, ...) ATTRIBUTE_PRINTF_1; 118static void warn (const char *, ...) ATTRIBUTE_PRINTF_1; 119static char *look_for_prog (const char *, const char *, int); 120static char *deduce_name (const char *); 121static void delete_temp_files (void); 122static void cleanup_and_exit (int); 123 124/**********************************************************************/ 125 126/* Please keep the following 4 routines in sync with dlltool.c: 127 display () 128 inform () 129 look_for_prog () 130 deduce_name () 131 It's not worth the hassle to break these out since dllwrap will 132 (hopefully) soon be retired in favor of `ld --shared. */ 133 134static void 135display (const char * message, va_list args) 136{ 137 if (prog_name != NULL) 138 fprintf (stderr, "%s: ", prog_name); 139 140 vfprintf (stderr, message, args); 141 fputc ('\n', stderr); 142} 143 144 145static void 146inform VPARAMS ((const char *message, ...)) 147{ 148 VA_OPEN (args, message); 149 VA_FIXEDARG (args, const char *, message); 150 151 if (!verbose) 152 return; 153 154 display (message, args); 155 156 VA_CLOSE (args); 157} 158 159static void 160warn VPARAMS ((const char *format, ...)) 161{ 162 VA_OPEN (args, format); 163 VA_FIXEDARG (args, const char *, format); 164 165 display (format, args); 166 167 VA_CLOSE (args); 168} 169 170/* Look for the program formed by concatenating PROG_NAME and the 171 string running from PREFIX to END_PREFIX. If the concatenated 172 string contains a '/', try appending EXECUTABLE_SUFFIX if it is 173 appropriate. */ 174 175static char * 176look_for_prog (const char *prog_name, const char *prefix, int end_prefix) 177{ 178 struct stat s; 179 char *cmd; 180 181 cmd = xmalloc (strlen (prefix) 182 + strlen (prog_name) 183#ifdef HAVE_EXECUTABLE_SUFFIX 184 + strlen (EXECUTABLE_SUFFIX) 185#endif 186 + 10); 187 strcpy (cmd, prefix); 188 189 sprintf (cmd + end_prefix, "%s", prog_name); 190 191 if (strchr (cmd, '/') != NULL) 192 { 193 int found; 194 195 found = (stat (cmd, &s) == 0 196#ifdef HAVE_EXECUTABLE_SUFFIX 197 || stat (strcat (cmd, EXECUTABLE_SUFFIX), &s) == 0 198#endif 199 ); 200 201 if (! found) 202 { 203 /* xgettext:c-format */ 204 inform (_("Tried file: %s"), cmd); 205 free (cmd); 206 return NULL; 207 } 208 } 209 210 /* xgettext:c-format */ 211 inform (_("Using file: %s"), cmd); 212 213 return cmd; 214} 215 216/* Deduce the name of the program we are want to invoke. 217 PROG_NAME is the basic name of the program we want to run, 218 eg "as" or "ld". The catch is that we might want actually 219 run "i386-pe-as" or "ppc-pe-ld". 220 221 If argv[0] contains the full path, then try to find the program 222 in the same place, with and then without a target-like prefix. 223 224 Given, argv[0] = /usr/local/bin/i586-cygwin32-dlltool, 225 deduce_name("as") uses the following search order: 226 227 /usr/local/bin/i586-cygwin32-as 228 /usr/local/bin/as 229 as 230 231 If there's an EXECUTABLE_SUFFIX, it'll use that as well; for each 232 name, it'll try without and then with EXECUTABLE_SUFFIX. 233 234 Given, argv[0] = i586-cygwin32-dlltool, it will not even try "as" 235 as the fallback, but rather return i586-cygwin32-as. 236 237 Oh, and given, argv[0] = dlltool, it'll return "as". 238 239 Returns a dynamically allocated string. */ 240 241static char * 242deduce_name (const char * name) 243{ 244 char *cmd; 245 const char *dash; 246 const char *slash; 247 const char *cp; 248 249 dash = NULL; 250 slash = NULL; 251 for (cp = prog_name; *cp != '\0'; ++cp) 252 { 253 if (*cp == '-') 254 dash = cp; 255 256 if ( 257#if defined(__DJGPP__) || defined (__CYGWIN__) || defined(__WIN32__) 258 *cp == ':' || *cp == '\\' || 259#endif 260 *cp == '/') 261 { 262 slash = cp; 263 dash = NULL; 264 } 265 } 266 267 cmd = NULL; 268 269 if (dash != NULL) 270 /* First, try looking for a prefixed NAME in the 271 PROG_NAME directory, with the same prefix as PROG_NAME. */ 272 cmd = look_for_prog (name, prog_name, dash - prog_name + 1); 273 274 if (slash != NULL && cmd == NULL) 275 /* Next, try looking for a NAME in the same directory as 276 that of this program. */ 277 cmd = look_for_prog (name, prog_name, slash - prog_name + 1); 278 279 if (cmd == NULL) 280 /* Just return NAME as is. */ 281 cmd = xstrdup (name); 282 283 return cmd; 284} 285 286static void 287delete_temp_files (void) 288{ 289 if (delete_base_file && base_file_name) 290 { 291 if (verbose) 292 { 293 if (dontdeltemps) 294 warn (_("Keeping temporary base file %s"), base_file_name); 295 else 296 warn (_("Deleting temporary base file %s"), base_file_name); 297 } 298 if (! dontdeltemps) 299 { 300 unlink (base_file_name); 301 free (base_file_name); 302 } 303 } 304 305 if (delete_exp_file && exp_file_name) 306 { 307 if (verbose) 308 { 309 if (dontdeltemps) 310 warn (_("Keeping temporary exp file %s"), exp_file_name); 311 else 312 warn (_("Deleting temporary exp file %s"), exp_file_name); 313 } 314 if (! dontdeltemps) 315 { 316 unlink (exp_file_name); 317 free (exp_file_name); 318 } 319 } 320 if (delete_def_file && def_file_name) 321 { 322 if (verbose) 323 { 324 if (dontdeltemps) 325 warn (_("Keeping temporary def file %s"), def_file_name); 326 else 327 warn (_("Deleting temporary def file %s"), def_file_name); 328 } 329 if (! dontdeltemps) 330 { 331 unlink (def_file_name); 332 free (def_file_name); 333 } 334 } 335} 336 337static void 338cleanup_and_exit (int status) 339{ 340 delete_temp_files (); 341 exit (status); 342} 343 344static int 345run (const char *what, char *args) 346{ 347 char *s; 348 int pid, wait_status, retcode; 349 int i; 350 const char **argv; 351 char *errmsg_fmt, *errmsg_arg; 352 char *temp_base = choose_temp_base (); 353 int in_quote; 354 char sep; 355 356 if (verbose || dry_run) 357 fprintf (stderr, "%s %s\n", what, args); 358 359 /* Count the args */ 360 i = 0; 361 for (s = args; *s; s++) 362 if (*s == ' ') 363 i++; 364 i++; 365 argv = alloca (sizeof (char *) * (i + 3)); 366 i = 0; 367 argv[i++] = what; 368 s = args; 369 while (1) 370 { 371 while (*s == ' ' && *s != 0) 372 s++; 373 if (*s == 0) 374 break; 375 in_quote = (*s == '\'' || *s == '"'); 376 sep = (in_quote) ? *s++ : ' '; 377 argv[i++] = s; 378 while (*s != sep && *s != 0) 379 s++; 380 if (*s == 0) 381 break; 382 *s++ = 0; 383 if (in_quote) 384 s++; 385 } 386 argv[i++] = NULL; 387 388 if (dry_run) 389 return 0; 390 391 pid = pexecute (argv[0], (char * const *) argv, prog_name, temp_base, 392 &errmsg_fmt, &errmsg_arg, PEXECUTE_ONE | PEXECUTE_SEARCH); 393 394 if (pid == -1) 395 { 396 int errno_val = errno; 397 398 fprintf (stderr, "%s: ", prog_name); 399 fprintf (stderr, errmsg_fmt, errmsg_arg); 400 fprintf (stderr, ": %s\n", strerror (errno_val)); 401 return 1; 402 } 403 404 retcode = 0; 405 pid = pwait (pid, &wait_status, 0); 406 if (pid == -1) 407 { 408 warn ("wait: %s", strerror (errno)); 409 retcode = 1; 410 } 411 else if (WIFSIGNALED (wait_status)) 412 { 413 warn (_("subprocess got fatal signal %d"), WTERMSIG (wait_status)); 414 retcode = 1; 415 } 416 else if (WIFEXITED (wait_status)) 417 { 418 if (WEXITSTATUS (wait_status) != 0) 419 { 420 warn (_("%s exited with status %d"), what, WEXITSTATUS (wait_status)); 421 retcode = 1; 422 } 423 } 424 else 425 retcode = 1; 426 427 return retcode; 428} 429 430static char * 431mybasename (const char *name) 432{ 433 const char *base = name; 434 435 while (*name) 436 { 437 if (*name == '/' || *name == '\\') 438 { 439 base = name + 1; 440 } 441 ++name; 442 } 443 return (char *) base; 444} 445 446static int 447strhash (const char *str) 448{ 449 const unsigned char *s; 450 unsigned long hash; 451 unsigned int c; 452 unsigned int len; 453 454 hash = 0; 455 len = 0; 456 s = (const unsigned char *) str; 457 while ((c = *s++) != '\0') 458 { 459 hash += c + (c << 17); 460 hash ^= hash >> 2; 461 ++len; 462 } 463 hash += len + (len << 17); 464 hash ^= hash >> 2; 465 466 return hash; 467} 468 469/**********************************************************************/ 470 471static void 472usage (FILE *file, int status) 473{ 474 fprintf (file, _("Usage %s <option(s)> <object-file(s)>\n"), prog_name); 475 fprintf (file, _(" Generic options:\n")); 476 fprintf (file, _(" @<file> Read options from <file>\n")); 477 fprintf (file, _(" --quiet, -q Work quietly\n")); 478 fprintf (file, _(" --verbose, -v Verbose\n")); 479 fprintf (file, _(" --version Print dllwrap version\n")); 480 fprintf (file, _(" --implib <outname> Synonym for --output-lib\n")); 481 fprintf (file, _(" Options for %s:\n"), prog_name); 482 fprintf (file, _(" --driver-name <driver> Defaults to \"gcc\"\n")); 483 fprintf (file, _(" --driver-flags <flags> Override default ld flags\n")); 484 fprintf (file, _(" --dlltool-name <dlltool> Defaults to \"dlltool\"\n")); 485 fprintf (file, _(" --entry <entry> Specify alternate DLL entry point\n")); 486 fprintf (file, _(" --image-base <base> Specify image base address\n")); 487 fprintf (file, _(" --target <machine> i386-cygwin32 or i386-mingw32\n")); 488 fprintf (file, _(" --dry-run Show what needs to be run\n")); 489 fprintf (file, _(" --mno-cygwin Create Mingw DLL\n")); 490 fprintf (file, _(" Options passed to DLLTOOL:\n")); 491 fprintf (file, _(" --machine <machine>\n")); 492 fprintf (file, _(" --output-exp <outname> Generate export file.\n")); 493 fprintf (file, _(" --output-lib <outname> Generate input library.\n")); 494 fprintf (file, _(" --add-indirect Add dll indirects to export file.\n")); 495 fprintf (file, _(" --dllname <name> Name of input dll to put into output lib.\n")); 496 fprintf (file, _(" --def <deffile> Name input .def file\n")); 497 fprintf (file, _(" --output-def <deffile> Name output .def file\n")); 498 fprintf (file, _(" --export-all-symbols Export all symbols to .def\n")); 499 fprintf (file, _(" --no-export-all-symbols Only export .drectve symbols\n")); 500 fprintf (file, _(" --exclude-symbols <list> Exclude <list> from .def\n")); 501 fprintf (file, _(" --no-default-excludes Zap default exclude symbols\n")); 502 fprintf (file, _(" --base-file <basefile> Read linker generated base file\n")); 503 fprintf (file, _(" --no-idata4 Don't generate idata$4 section\n")); 504 fprintf (file, _(" --no-idata5 Don't generate idata$5 section\n")); 505 fprintf (file, _(" -U Add underscores to .lib\n")); 506 fprintf (file, _(" -k Kill @<n> from exported names\n")); 507 fprintf (file, _(" --add-stdcall-alias Add aliases without @<n>\n")); 508 fprintf (file, _(" --as <name> Use <name> for assembler\n")); 509 fprintf (file, _(" --nodelete Keep temp files.\n")); 510 fprintf (file, _(" Rest are passed unmodified to the language driver\n")); 511 fprintf (file, "\n\n"); 512 exit (status); 513} 514 515#define OPTION_START 149 516 517/* GENERIC options. */ 518#define OPTION_QUIET (OPTION_START + 1) 519#define OPTION_VERBOSE (OPTION_QUIET + 1) 520#define OPTION_VERSION (OPTION_VERBOSE + 1) 521 522/* DLLWRAP options. */ 523#define OPTION_DRY_RUN (OPTION_VERSION + 1) 524#define OPTION_DRIVER_NAME (OPTION_DRY_RUN + 1) 525#define OPTION_DRIVER_FLAGS (OPTION_DRIVER_NAME + 1) 526#define OPTION_DLLTOOL_NAME (OPTION_DRIVER_FLAGS + 1) 527#define OPTION_ENTRY (OPTION_DLLTOOL_NAME + 1) 528#define OPTION_IMAGE_BASE (OPTION_ENTRY + 1) 529#define OPTION_TARGET (OPTION_IMAGE_BASE + 1) 530#define OPTION_MNO_CYGWIN (OPTION_TARGET + 1) 531 532/* DLLTOOL options. */ 533#define OPTION_NODELETE (OPTION_MNO_CYGWIN + 1) 534#define OPTION_DLLNAME (OPTION_NODELETE + 1) 535#define OPTION_NO_IDATA4 (OPTION_DLLNAME + 1) 536#define OPTION_NO_IDATA5 (OPTION_NO_IDATA4 + 1) 537#define OPTION_OUTPUT_EXP (OPTION_NO_IDATA5 + 1) 538#define OPTION_OUTPUT_DEF (OPTION_OUTPUT_EXP + 1) 539#define OPTION_EXPORT_ALL_SYMS (OPTION_OUTPUT_DEF + 1) 540#define OPTION_NO_EXPORT_ALL_SYMS (OPTION_EXPORT_ALL_SYMS + 1) 541#define OPTION_EXCLUDE_SYMS (OPTION_NO_EXPORT_ALL_SYMS + 1) 542#define OPTION_NO_DEFAULT_EXCLUDES (OPTION_EXCLUDE_SYMS + 1) 543#define OPTION_OUTPUT_LIB (OPTION_NO_DEFAULT_EXCLUDES + 1) 544#define OPTION_DEF (OPTION_OUTPUT_LIB + 1) 545#define OPTION_ADD_UNDERSCORE (OPTION_DEF + 1) 546#define OPTION_KILLAT (OPTION_ADD_UNDERSCORE + 1) 547#define OPTION_HELP (OPTION_KILLAT + 1) 548#define OPTION_MACHINE (OPTION_HELP + 1) 549#define OPTION_ADD_INDIRECT (OPTION_MACHINE + 1) 550#define OPTION_BASE_FILE (OPTION_ADD_INDIRECT + 1) 551#define OPTION_AS (OPTION_BASE_FILE + 1) 552 553static const struct option long_options[] = 554{ 555 /* generic options. */ 556 {"quiet", no_argument, NULL, 'q'}, 557 {"verbose", no_argument, NULL, 'v'}, 558 {"version", no_argument, NULL, OPTION_VERSION}, 559 {"implib", required_argument, NULL, OPTION_OUTPUT_LIB}, 560 561 /* dllwrap options. */ 562 {"dry-run", no_argument, NULL, OPTION_DRY_RUN}, 563 {"driver-name", required_argument, NULL, OPTION_DRIVER_NAME}, 564 {"driver-flags", required_argument, NULL, OPTION_DRIVER_FLAGS}, 565 {"dlltool-name", required_argument, NULL, OPTION_DLLTOOL_NAME}, 566 {"entry", required_argument, NULL, 'e'}, 567 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, 568 {"target", required_argument, NULL, OPTION_TARGET}, 569 570 /* dlltool options. */ 571 {"no-delete", no_argument, NULL, 'n'}, 572 {"dllname", required_argument, NULL, OPTION_DLLNAME}, 573 {"no-idata4", no_argument, NULL, OPTION_NO_IDATA4}, 574 {"no-idata5", no_argument, NULL, OPTION_NO_IDATA5}, 575 {"output-exp", required_argument, NULL, OPTION_OUTPUT_EXP}, 576 {"output-def", required_argument, NULL, OPTION_OUTPUT_DEF}, 577 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL_SYMS}, 578 {"no-export-all-symbols", no_argument, NULL, OPTION_NO_EXPORT_ALL_SYMS}, 579 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMS}, 580 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES}, 581 {"output-lib", required_argument, NULL, OPTION_OUTPUT_LIB}, 582 {"def", required_argument, NULL, OPTION_DEF}, 583 {"add-underscore", no_argument, NULL, 'U'}, 584 {"killat", no_argument, NULL, 'k'}, 585 {"add-stdcall-alias", no_argument, NULL, 'A'}, 586 {"help", no_argument, NULL, 'h'}, 587 {"machine", required_argument, NULL, OPTION_MACHINE}, 588 {"add-indirect", no_argument, NULL, OPTION_ADD_INDIRECT}, 589 {"base-file", required_argument, NULL, OPTION_BASE_FILE}, 590 {"as", required_argument, NULL, OPTION_AS}, 591 {0, 0, 0, 0} 592}; 593 594int main (int, char **); 595 596int 597main (int argc, char **argv) 598{ 599 int c; 600 int i; 601 602 char **saved_argv = 0; 603 int cmdline_len = 0; 604 605 int export_all = 0; 606 607 int *dlltool_arg_indices; 608 int *driver_arg_indices; 609 610 char *driver_flags = 0; 611 char *output_lib_file_name = 0; 612 613 dyn_string_t dlltool_cmdline; 614 dyn_string_t driver_cmdline; 615 616 int def_file_seen = 0; 617 618 char *image_base_str = 0; 619 620 prog_name = argv[0]; 621 622#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) 623 setlocale (LC_MESSAGES, ""); 624#endif 625#if defined (HAVE_SETLOCALE) 626 setlocale (LC_CTYPE, ""); 627#endif 628 bindtextdomain (PACKAGE, LOCALEDIR); 629 textdomain (PACKAGE); 630 631 expandargv (&argc, &argv); 632 633 saved_argv = (char **) xmalloc (argc * sizeof (char*)); 634 dlltool_arg_indices = (int *) xmalloc (argc * sizeof (int)); 635 driver_arg_indices = (int *) xmalloc (argc * sizeof (int)); 636 for (i = 0; i < argc; ++i) 637 { 638 size_t len = strlen (argv[i]); 639 char *arg = (char *) xmalloc (len + 1); 640 strcpy (arg, argv[i]); 641 cmdline_len += len; 642 saved_argv[i] = arg; 643 dlltool_arg_indices[i] = 0; 644 driver_arg_indices[i] = 1; 645 } 646 cmdline_len++; 647 648 /* We recognize dllwrap and dlltool options, and everything else is 649 passed onto the language driver (eg., to GCC). We collect options 650 to dlltool and driver in dlltool_args and driver_args. */ 651 652 opterr = 0; 653 while ((c = getopt_long_only (argc, argv, "nkAqve:Uho:l:L:I:", 654 long_options, (int *) 0)) != EOF) 655 { 656 int dlltool_arg; 657 int driver_arg; 658 int single_word_option_value_pair; 659 660 dlltool_arg = 0; 661 driver_arg = 1; 662 single_word_option_value_pair = 0; 663 664 if (c != '?') 665 { 666 /* We recognize this option, so it has to be either dllwrap or 667 dlltool option. Do not pass to driver unless it's one of the 668 generic options that are passed to all the tools (such as -v) 669 which are dealt with later. */ 670 driver_arg = 0; 671 } 672 673 /* deal with generic and dllwrap options first. */ 674 switch (c) 675 { 676 case 'h': 677 usage (stdout, 0); 678 break; 679 case 'q': 680 verbose = 0; 681 break; 682 case 'v': 683 verbose = 1; 684 break; 685 case OPTION_VERSION: 686 print_version (prog_name); 687 break; 688 case 'e': 689 entry_point = optarg; 690 break; 691 case OPTION_IMAGE_BASE: 692 image_base_str = optarg; 693 break; 694 case OPTION_DEF: 695 def_file_name = optarg; 696 def_file_seen = 1; 697 delete_def_file = 0; 698 break; 699 case 'n': 700 dontdeltemps = 1; 701 dlltool_arg = 1; 702 break; 703 case 'o': 704 dll_file_name = optarg; 705 break; 706 case 'I': 707 case 'l': 708 case 'L': 709 driver_arg = 1; 710 break; 711 case OPTION_DLLNAME: 712 dll_name = optarg; 713 break; 714 case OPTION_DRY_RUN: 715 dry_run = 1; 716 break; 717 case OPTION_DRIVER_NAME: 718 driver_name = optarg; 719 break; 720 case OPTION_DRIVER_FLAGS: 721 driver_flags = optarg; 722 break; 723 case OPTION_DLLTOOL_NAME: 724 dlltool_name = optarg; 725 break; 726 case OPTION_TARGET: 727 target = optarg; 728 break; 729 case OPTION_MNO_CYGWIN: 730 target = "i386-mingw32"; 731 break; 732 case OPTION_BASE_FILE: 733 base_file_name = optarg; 734 delete_base_file = 0; 735 break; 736 case OPTION_OUTPUT_EXP: 737 exp_file_name = optarg; 738 delete_exp_file = 0; 739 break; 740 case OPTION_EXPORT_ALL_SYMS: 741 export_all = 1; 742 break; 743 case OPTION_OUTPUT_LIB: 744 output_lib_file_name = optarg; 745 break; 746 case '?': 747 break; 748 default: 749 dlltool_arg = 1; 750 break; 751 } 752 753 /* Handle passing through --option=value case. */ 754 if (optarg 755 && saved_argv[optind-1][0] == '-' 756 && saved_argv[optind-1][1] == '-' 757 && strchr (saved_argv[optind-1], '=')) 758 single_word_option_value_pair = 1; 759 760 if (dlltool_arg) 761 { 762 dlltool_arg_indices[optind-1] = 1; 763 if (optarg && ! single_word_option_value_pair) 764 { 765 dlltool_arg_indices[optind-2] = 1; 766 } 767 } 768 769 if (! driver_arg) 770 { 771 driver_arg_indices[optind-1] = 0; 772 if (optarg && ! single_word_option_value_pair) 773 { 774 driver_arg_indices[optind-2] = 0; 775 } 776 } 777 } 778 779 /* Sanity checks. */ 780 if (! dll_name && ! dll_file_name) 781 { 782 warn (_("Must provide at least one of -o or --dllname options")); 783 exit (1); 784 } 785 else if (! dll_name) 786 { 787 dll_name = xstrdup (mybasename (dll_file_name)); 788 } 789 else if (! dll_file_name) 790 { 791 dll_file_name = xstrdup (dll_name); 792 } 793 794 /* Deduce driver-name and dlltool-name from our own. */ 795 if (driver_name == NULL) 796 driver_name = deduce_name ("gcc"); 797 798 if (dlltool_name == NULL) 799 dlltool_name = deduce_name ("dlltool"); 800 801 if (! def_file_seen) 802 { 803 char *fileprefix = choose_temp_base (); 804 805 def_file_name = (char *) xmalloc (strlen (fileprefix) + 5); 806 sprintf (def_file_name, "%s.def", 807 (dontdeltemps) ? mybasename (fileprefix) : fileprefix); 808 delete_def_file = 1; 809 free (fileprefix); 810 delete_def_file = 1; 811 warn (_("no export definition file provided.\n\ 812Creating one, but that may not be what you want")); 813 } 814 815 /* Set the target platform. */ 816 if (strstr (target, "cygwin")) 817 which_target = CYGWIN_TARGET; 818 else if (strstr (target, "mingw")) 819 which_target = MINGW_TARGET; 820 else 821 which_target = UNKNOWN_TARGET; 822 823 /* Re-create the command lines as a string, taking care to quote stuff. */ 824 dlltool_cmdline = dyn_string_new (cmdline_len); 825 if (verbose) 826 dyn_string_append_cstr (dlltool_cmdline, " -v"); 827 828 dyn_string_append_cstr (dlltool_cmdline, " --dllname "); 829 dyn_string_append_cstr (dlltool_cmdline, dll_name); 830 831 for (i = 1; i < argc; ++i) 832 { 833 if (dlltool_arg_indices[i]) 834 { 835 char *arg = saved_argv[i]; 836 int quote = (strchr (arg, ' ') || strchr (arg, '\t')); 837 dyn_string_append_cstr (dlltool_cmdline, 838 (quote) ? " \"" : " "); 839 dyn_string_append_cstr (dlltool_cmdline, arg); 840 dyn_string_append_cstr (dlltool_cmdline, 841 (quote) ? "\"" : ""); 842 } 843 } 844 845 driver_cmdline = dyn_string_new (cmdline_len); 846 if (! driver_flags || strlen (driver_flags) == 0) 847 { 848 switch (which_target) 849 { 850 case CYGWIN_TARGET: 851 driver_flags = cygwin_driver_flags; 852 break; 853 854 case MINGW_TARGET: 855 driver_flags = mingw32_driver_flags; 856 break; 857 858 default: 859 driver_flags = generic_driver_flags; 860 break; 861 } 862 } 863 dyn_string_append_cstr (driver_cmdline, driver_flags); 864 dyn_string_append_cstr (driver_cmdline, " -o "); 865 dyn_string_append_cstr (driver_cmdline, dll_file_name); 866 867 if (! entry_point || strlen (entry_point) == 0) 868 { 869 switch (which_target) 870 { 871 case CYGWIN_TARGET: 872 entry_point = "__cygwin_dll_entry@12"; 873 break; 874 875 case MINGW_TARGET: 876 entry_point = "_DllMainCRTStartup@12"; 877 break; 878 879 default: 880 entry_point = "_DllMain@12"; 881 break; 882 } 883 } 884 dyn_string_append_cstr (driver_cmdline, " -Wl,-e,"); 885 dyn_string_append_cstr (driver_cmdline, entry_point); 886 dyn_string_append_cstr (dlltool_cmdline, " --exclude-symbol="); 887 dyn_string_append_cstr (dlltool_cmdline, 888 (entry_point[0] == '_') ? entry_point+1 : entry_point); 889 890 if (! image_base_str || strlen (image_base_str) == 0) 891 { 892 char *tmpbuf = (char *) xmalloc (sizeof ("0x12345678") + 1); 893 unsigned long hash = strhash (dll_file_name); 894 sprintf (tmpbuf, "0x%.8lX", 0x60000000|((hash<<16)&0xFFC0000)); 895 image_base_str = tmpbuf; 896 } 897 898 dyn_string_append_cstr (driver_cmdline, " -Wl,--image-base,"); 899 dyn_string_append_cstr (driver_cmdline, image_base_str); 900 901 if (verbose) 902 { 903 dyn_string_append_cstr (driver_cmdline, " -v"); 904 } 905 906 for (i = 1; i < argc; ++i) 907 { 908 if (driver_arg_indices[i]) 909 { 910 char *arg = saved_argv[i]; 911 int quote = (strchr (arg, ' ') || strchr (arg, '\t')); 912 dyn_string_append_cstr (driver_cmdline, 913 (quote) ? " \"" : " "); 914 dyn_string_append_cstr (driver_cmdline, arg); 915 dyn_string_append_cstr (driver_cmdline, 916 (quote) ? "\"" : ""); 917 } 918 } 919 920 /* Step pre-1. If no --def <EXPORT_DEF> is specified, 921 then create it and then pass it on. */ 922 923 if (! def_file_seen) 924 { 925 int i; 926 dyn_string_t step_pre1; 927 928 step_pre1 = dyn_string_new (1024); 929 930 dyn_string_append_cstr (step_pre1, dlltool_cmdline->s); 931 if (export_all) 932 { 933 dyn_string_append_cstr (step_pre1, " --export-all --exclude-symbol="); 934 dyn_string_append_cstr (step_pre1, 935 "_cygwin_dll_entry@12,DllMainCRTStartup@12,DllMain@12,DllEntryPoint@12"); 936 } 937 dyn_string_append_cstr (step_pre1, " --output-def "); 938 dyn_string_append_cstr (step_pre1, def_file_name); 939 940 for (i = 1; i < argc; ++i) 941 { 942 if (driver_arg_indices[i]) 943 { 944 char *arg = saved_argv[i]; 945 size_t len = strlen (arg); 946 if (len >= 2 && arg[len-2] == '.' 947 && (arg[len-1] == 'o' || arg[len-1] == 'a')) 948 { 949 int quote = (strchr (arg, ' ') || strchr (arg, '\t')); 950 dyn_string_append_cstr (step_pre1, 951 (quote) ? " \"" : " "); 952 dyn_string_append_cstr (step_pre1, arg); 953 dyn_string_append_cstr (step_pre1, 954 (quote) ? "\"" : ""); 955 } 956 } 957 } 958 959 if (run (dlltool_name, step_pre1->s)) 960 cleanup_and_exit (1); 961 962 dyn_string_delete (step_pre1); 963 } 964 965 dyn_string_append_cstr (dlltool_cmdline, " --def "); 966 dyn_string_append_cstr (dlltool_cmdline, def_file_name); 967 968 if (verbose) 969 { 970 fprintf (stderr, _("DLLTOOL name : %s\n"), dlltool_name); 971 fprintf (stderr, _("DLLTOOL options : %s\n"), dlltool_cmdline->s); 972 fprintf (stderr, _("DRIVER name : %s\n"), driver_name); 973 fprintf (stderr, _("DRIVER options : %s\n"), driver_cmdline->s); 974 } 975 976 /* Step 1. Call GCC/LD to create base relocation file. If using GCC, the 977 driver command line will look like the following: 978 979 % gcc -Wl,--dll --Wl,--base-file,foo.base [rest of command line] 980 981 If the user does not specify a base name, create temporary one that 982 is deleted at exit. */ 983 984 if (! base_file_name) 985 { 986 char *fileprefix = choose_temp_base (); 987 base_file_name = (char *) xmalloc (strlen (fileprefix) + 6); 988 sprintf (base_file_name, "%s.base", 989 (dontdeltemps) ? mybasename (fileprefix) : fileprefix); 990 delete_base_file = 1; 991 free (fileprefix); 992 } 993 994 { 995 int quote; 996 997 dyn_string_t step1 = dyn_string_new (driver_cmdline->length 998 + strlen (base_file_name) 999 + 20); 1000 dyn_string_append_cstr (step1, "-Wl,--base-file,"); 1001 quote = (strchr (base_file_name, ' ') 1002 || strchr (base_file_name, '\t')); 1003 dyn_string_append_cstr (step1, 1004 (quote) ? "\"" : ""); 1005 dyn_string_append_cstr (step1, base_file_name); 1006 dyn_string_append_cstr (step1, 1007 (quote) ? "\"" : ""); 1008 if (driver_cmdline->length) 1009 { 1010 dyn_string_append_cstr (step1, " "); 1011 dyn_string_append_cstr (step1, driver_cmdline->s); 1012 } 1013 1014 if (run (driver_name, step1->s)) 1015 cleanup_and_exit (1); 1016 1017 dyn_string_delete (step1); 1018 } 1019 1020 /* Step 2. generate the exp file by running dlltool. 1021 dlltool command line will look like the following: 1022 1023 % dlltool -Wl,--dll --Wl,--base-file,foo.base [rest of command line] 1024 1025 If the user does not specify a base name, create temporary one that 1026 is deleted at exit. */ 1027 1028 if (! exp_file_name) 1029 { 1030 char *p = strrchr (dll_name, '.'); 1031 size_t prefix_len = (p) ? (size_t) (p - dll_name) : strlen (dll_name); 1032 1033 exp_file_name = (char *) xmalloc (prefix_len + 4 + 1); 1034 strncpy (exp_file_name, dll_name, prefix_len); 1035 exp_file_name[prefix_len] = '\0'; 1036 strcat (exp_file_name, ".exp"); 1037 delete_exp_file = 1; 1038 } 1039 1040 { 1041 int quote; 1042 1043 dyn_string_t step2 = dyn_string_new (dlltool_cmdline->length 1044 + strlen (base_file_name) 1045 + strlen (exp_file_name) 1046 + 20); 1047 1048 dyn_string_append_cstr (step2, "--base-file "); 1049 quote = (strchr (base_file_name, ' ') 1050 || strchr (base_file_name, '\t')); 1051 dyn_string_append_cstr (step2, 1052 (quote) ? "\"" : ""); 1053 dyn_string_append_cstr (step2, base_file_name); 1054 dyn_string_append_cstr (step2, 1055 (quote) ? "\" " : " "); 1056 1057 dyn_string_append_cstr (step2, "--output-exp "); 1058 quote = (strchr (exp_file_name, ' ') 1059 || strchr (exp_file_name, '\t')); 1060 dyn_string_append_cstr (step2, 1061 (quote) ? "\"" : ""); 1062 dyn_string_append_cstr (step2, exp_file_name); 1063 dyn_string_append_cstr (step2, 1064 (quote) ? "\"" : ""); 1065 1066 if (dlltool_cmdline->length) 1067 { 1068 dyn_string_append_cstr (step2, " "); 1069 dyn_string_append_cstr (step2, dlltool_cmdline->s); 1070 } 1071 1072 if (run (dlltool_name, step2->s)) 1073 cleanup_and_exit (1); 1074 1075 dyn_string_delete (step2); 1076 } 1077 1078 /* 1079 * Step 3. Call GCC/LD to again, adding the exp file this time. 1080 * driver command line will look like the following: 1081 * 1082 * % gcc -Wl,--dll --Wl,--base-file,foo.base foo.exp [rest ...] 1083 */ 1084 1085 { 1086 int quote; 1087 1088 dyn_string_t step3 = dyn_string_new (driver_cmdline->length 1089 + strlen (exp_file_name) 1090 + strlen (base_file_name) 1091 + 20); 1092 dyn_string_append_cstr (step3, "-Wl,--base-file,"); 1093 quote = (strchr (base_file_name, ' ') 1094 || strchr (base_file_name, '\t')); 1095 dyn_string_append_cstr (step3, 1096 (quote) ? "\"" : ""); 1097 dyn_string_append_cstr (step3, base_file_name); 1098 dyn_string_append_cstr (step3, 1099 (quote) ? "\" " : " "); 1100 1101 quote = (strchr (exp_file_name, ' ') 1102 || strchr (exp_file_name, '\t')); 1103 dyn_string_append_cstr (step3, 1104 (quote) ? "\"" : ""); 1105 dyn_string_append_cstr (step3, exp_file_name); 1106 dyn_string_append_cstr (step3, 1107 (quote) ? "\"" : ""); 1108 1109 if (driver_cmdline->length) 1110 { 1111 dyn_string_append_cstr (step3, " "); 1112 dyn_string_append_cstr (step3, driver_cmdline->s); 1113 } 1114 1115 if (run (driver_name, step3->s)) 1116 cleanup_and_exit (1); 1117 1118 dyn_string_delete (step3); 1119 } 1120 1121 1122 /* 1123 * Step 4. Run DLLTOOL again using the same command line. 1124 */ 1125 1126 { 1127 int quote; 1128 dyn_string_t step4 = dyn_string_new (dlltool_cmdline->length 1129 + strlen (base_file_name) 1130 + strlen (exp_file_name) 1131 + 20); 1132 1133 dyn_string_append_cstr (step4, "--base-file "); 1134 quote = (strchr (base_file_name, ' ') 1135 || strchr (base_file_name, '\t')); 1136 dyn_string_append_cstr (step4, 1137 (quote) ? "\"" : ""); 1138 dyn_string_append_cstr (step4, base_file_name); 1139 dyn_string_append_cstr (step4, 1140 (quote) ? "\" " : " "); 1141 1142 dyn_string_append_cstr (step4, "--output-exp "); 1143 quote = (strchr (exp_file_name, ' ') 1144 || strchr (exp_file_name, '\t')); 1145 dyn_string_append_cstr (step4, 1146 (quote) ? "\"" : ""); 1147 dyn_string_append_cstr (step4, exp_file_name); 1148 dyn_string_append_cstr (step4, 1149 (quote) ? "\"" : ""); 1150 1151 if (dlltool_cmdline->length) 1152 { 1153 dyn_string_append_cstr (step4, " "); 1154 dyn_string_append_cstr (step4, dlltool_cmdline->s); 1155 } 1156 1157 if (output_lib_file_name) 1158 { 1159 dyn_string_append_cstr (step4, " --output-lib "); 1160 dyn_string_append_cstr (step4, output_lib_file_name); 1161 } 1162 1163 if (run (dlltool_name, step4->s)) 1164 cleanup_and_exit (1); 1165 1166 dyn_string_delete (step4); 1167 } 1168 1169 1170 /* 1171 * Step 5. Link it all together and be done with it. 1172 * driver command line will look like the following: 1173 * 1174 * % gcc -Wl,--dll foo.exp [rest ...] 1175 * 1176 */ 1177 1178 { 1179 int quote; 1180 1181 dyn_string_t step5 = dyn_string_new (driver_cmdline->length 1182 + strlen (exp_file_name) 1183 + 20); 1184 quote = (strchr (exp_file_name, ' ') 1185 || strchr (exp_file_name, '\t')); 1186 dyn_string_append_cstr (step5, 1187 (quote) ? "\"" : ""); 1188 dyn_string_append_cstr (step5, exp_file_name); 1189 dyn_string_append_cstr (step5, 1190 (quote) ? "\"" : ""); 1191 1192 if (driver_cmdline->length) 1193 { 1194 dyn_string_append_cstr (step5, " "); 1195 dyn_string_append_cstr (step5, driver_cmdline->s); 1196 } 1197 1198 if (run (driver_name, step5->s)) 1199 cleanup_and_exit (1); 1200 1201 dyn_string_delete (step5); 1202 } 1203 1204 cleanup_and_exit (0); 1205 1206 return 0; 1207} 1208