1 /* dllwrap.c -- wrapper for DLLTOOL and GCC to generate PE style DLLs
2 Copyright (C) 1998-2015 Free Software Foundation, Inc.
3 Contributed by Mumit Khan (khan@xraylith.wisc.edu).
5 This file is part of GNU Binutils.
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 3 of the License, or
10 (at your option) any later version.
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.
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
24 #include "libiberty.h"
26 #include "dyn-string.h"
31 #ifdef HAVE_SYS_WAIT_H
33 #else /* ! HAVE_SYS_WAIT_H */
34 #if ! defined (_WIN32) || defined (__CYGWIN32__)
36 #define WIFEXITED(w) (((w)&0377) == 0)
39 #define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)
42 #define WTERMSIG(w) ((w) & 0177)
45 #define WEXITSTATUS(w) (((w) >> 8) & 0377)
47 #else /* defined (_WIN32) && ! defined (__CYGWIN32__) */
49 #define WIFEXITED(w) (((w) & 0xff) == 0)
52 #define WIFSIGNALED(w) (((w) & 0xff) != 0 && ((w) & 0xff) != 0x7f)
55 #define WTERMSIG(w) ((w) & 0x7f)
58 #define WEXITSTATUS(w) (((w) & 0xff00) >> 8)
60 #endif /* defined (_WIN32) && ! defined (__CYGWIN32__) */
61 #endif /* ! HAVE_SYS_WAIT_H */
63 static char *driver_name = NULL;
64 static char *cygwin_driver_flags =
65 "-Wl,--dll -nostartfiles";
66 static char *mingw32_driver_flags = "-mdll";
67 static char *generic_driver_flags = "-Wl,--dll";
69 static char *entry_point;
71 static char *dlltool_name = NULL;
73 static char *target = TARGET;
75 /* -1: use default, 0: no underscoring, 1: underscore. */
76 static int is_leading_underscore = -1;
93 static target_type which_target = UNKNOWN_TARGET;
94 static target_cpu which_cpu = UNKNOWN_CPU;
96 static int dontdeltemps = 0;
97 static int dry_run = 0;
99 static char *prog_name;
101 static int verbose = 0;
103 static char *dll_file_name;
104 static char *dll_name;
105 static char *base_file_name;
106 static char *exp_file_name;
107 static char *def_file_name;
108 static int delete_base_file = 1;
109 static int delete_exp_file = 1;
110 static int delete_def_file = 1;
112 static int run (const char *, char *);
113 static char *mybasename (const char *);
114 static int strhash (const char *);
115 static void usage (FILE *, int);
116 static void display (const char *, va_list) ATTRIBUTE_PRINTF(1,0);
117 static void inform (const char *, ...) ATTRIBUTE_PRINTF_1;
118 static void warn (const char *, ...) ATTRIBUTE_PRINTF_1;
119 static char *look_for_prog (const char *, const char *, int);
120 static char *deduce_name (const char *);
121 static void delete_temp_files (void);
122 static void cleanup_and_exit (int);
124 /**********************************************************************/
126 /* Please keep the following 4 routines in sync with dlltool.c:
131 It's not worth the hassle to break these out since dllwrap will
132 (hopefully) soon be retired in favor of `ld --shared. */
135 display (const char * message, va_list args)
137 if (prog_name != NULL)
138 fprintf (stderr, "%s: ", prog_name);
140 vfprintf (stderr, message, args);
141 fputc ('\n', stderr);
146 inform (const char *message, ...)
150 va_start (args, message);
155 display (message, args);
161 warn (const char *format, ...)
165 va_start (args, format);
167 display (format, args);
172 /* Look for the program formed by concatenating PROG_NAME and the
173 string running from PREFIX to END_PREFIX. If the concatenated
174 string contains a '/', try appending EXECUTABLE_SUFFIX if it is
178 look_for_prog (const char *progname, const char *prefix, int end_prefix)
183 cmd = xmalloc (strlen (prefix)
185 #ifdef HAVE_EXECUTABLE_SUFFIX
186 + strlen (EXECUTABLE_SUFFIX)
189 strcpy (cmd, prefix);
191 sprintf (cmd + end_prefix, "%s", progname);
193 if (strchr (cmd, '/') != NULL)
197 found = (stat (cmd, &s) == 0
198 #ifdef HAVE_EXECUTABLE_SUFFIX
199 || stat (strcat (cmd, EXECUTABLE_SUFFIX), &s) == 0
205 /* xgettext:c-format */
206 inform (_("Tried file: %s"), cmd);
212 /* xgettext:c-format */
213 inform (_("Using file: %s"), cmd);
218 /* Deduce the name of the program we are want to invoke.
219 PROG_NAME is the basic name of the program we want to run,
220 eg "as" or "ld". The catch is that we might want actually
221 run "i386-pe-as" or "ppc-pe-ld".
223 If argv[0] contains the full path, then try to find the program
224 in the same place, with and then without a target-like prefix.
226 Given, argv[0] = /usr/local/bin/i586-cygwin32-dlltool,
227 deduce_name("as") uses the following search order:
229 /usr/local/bin/i586-cygwin32-as
233 If there's an EXECUTABLE_SUFFIX, it'll use that as well; for each
234 name, it'll try without and then with EXECUTABLE_SUFFIX.
236 Given, argv[0] = i586-cygwin32-dlltool, it will not even try "as"
237 as the fallback, but rather return i586-cygwin32-as.
239 Oh, and given, argv[0] = dlltool, it'll return "as".
241 Returns a dynamically allocated string. */
244 deduce_name (const char * name)
253 for (cp = prog_name; *cp != '\0'; ++cp)
259 #if defined(__DJGPP__) || defined (__CYGWIN__) || defined(__WIN32__)
260 *cp == ':' || *cp == '\\' ||
272 /* First, try looking for a prefixed NAME in the
273 PROG_NAME directory, with the same prefix as PROG_NAME. */
274 cmd = look_for_prog (name, prog_name, dash - prog_name + 1);
276 if (slash != NULL && cmd == NULL)
277 /* Next, try looking for a NAME in the same directory as
278 that of this program. */
279 cmd = look_for_prog (name, prog_name, slash - prog_name + 1);
282 /* Just return NAME as is. */
283 cmd = xstrdup (name);
289 delete_temp_files (void)
291 if (delete_base_file && base_file_name)
296 warn (_("Keeping temporary base file %s"), base_file_name);
298 warn (_("Deleting temporary base file %s"), base_file_name);
302 unlink (base_file_name);
303 free (base_file_name);
307 if (delete_exp_file && exp_file_name)
312 warn (_("Keeping temporary exp file %s"), exp_file_name);
314 warn (_("Deleting temporary exp file %s"), exp_file_name);
318 unlink (exp_file_name);
319 free (exp_file_name);
322 if (delete_def_file && def_file_name)
327 warn (_("Keeping temporary def file %s"), def_file_name);
329 warn (_("Deleting temporary def file %s"), def_file_name);
333 unlink (def_file_name);
334 free (def_file_name);
340 cleanup_and_exit (int status)
342 delete_temp_files ();
347 run (const char *what, char *args)
350 int pid, wait_status, retcode;
353 char *errmsg_fmt, *errmsg_arg;
354 char *temp_base = choose_temp_base ();
358 if (verbose || dry_run)
359 fprintf (stderr, "%s %s\n", what, args);
363 for (s = args; *s; s++)
367 argv = alloca (sizeof (char *) * (i + 3));
373 while (*s == ' ' && *s != 0)
377 in_quote = (*s == '\'' || *s == '"');
378 sep = (in_quote) ? *s++ : ' ';
380 while (*s != sep && *s != 0)
393 pid = pexecute (argv[0], (char * const *) argv, prog_name, temp_base,
394 &errmsg_fmt, &errmsg_arg, PEXECUTE_ONE | PEXECUTE_SEARCH);
398 int errno_val = errno;
400 fprintf (stderr, "%s: ", prog_name);
401 fprintf (stderr, errmsg_fmt, errmsg_arg);
402 fprintf (stderr, ": %s\n", strerror (errno_val));
407 pid = pwait (pid, &wait_status, 0);
410 warn (_("pwait returns: %s"), strerror (errno));
413 else if (WIFSIGNALED (wait_status))
415 warn (_("subprocess got fatal signal %d"), WTERMSIG (wait_status));
418 else if (WIFEXITED (wait_status))
420 if (WEXITSTATUS (wait_status) != 0)
422 warn (_("%s exited with status %d"), what, WEXITSTATUS (wait_status));
433 mybasename (const char *name)
435 const char *base = name;
439 if (*name == '/' || *name == '\\')
445 return (char *) base;
449 strhash (const char *str)
451 const unsigned char *s;
458 s = (const unsigned char *) str;
459 while ((c = *s++) != '\0')
461 hash += c + (c << 17);
465 hash += len + (len << 17);
471 /**********************************************************************/
474 usage (FILE *file, int status)
476 fprintf (file, _("Usage %s <option(s)> <object-file(s)>\n"), prog_name);
477 fprintf (file, _(" Generic options:\n"));
478 fprintf (file, _(" @<file> Read options from <file>\n"));
479 fprintf (file, _(" --quiet, -q Work quietly\n"));
480 fprintf (file, _(" --verbose, -v Verbose\n"));
481 fprintf (file, _(" --version Print dllwrap version\n"));
482 fprintf (file, _(" --implib <outname> Synonym for --output-lib\n"));
483 fprintf (file, _(" Options for %s:\n"), prog_name);
484 fprintf (file, _(" --driver-name <driver> Defaults to \"gcc\"\n"));
485 fprintf (file, _(" --driver-flags <flags> Override default ld flags\n"));
486 fprintf (file, _(" --dlltool-name <dlltool> Defaults to \"dlltool\"\n"));
487 fprintf (file, _(" --entry <entry> Specify alternate DLL entry point\n"));
488 fprintf (file, _(" --image-base <base> Specify image base address\n"));
489 fprintf (file, _(" --target <machine> i386-cygwin32 or i386-mingw32\n"));
490 fprintf (file, _(" --dry-run Show what needs to be run\n"));
491 fprintf (file, _(" --mno-cygwin Create Mingw DLL\n"));
492 fprintf (file, _(" Options passed to DLLTOOL:\n"));
493 fprintf (file, _(" --machine <machine>\n"));
494 fprintf (file, _(" --output-exp <outname> Generate export file.\n"));
495 fprintf (file, _(" --output-lib <outname> Generate input library.\n"));
496 fprintf (file, _(" --add-indirect Add dll indirects to export file.\n"));
497 fprintf (file, _(" --dllname <name> Name of input dll to put into output lib.\n"));
498 fprintf (file, _(" --def <deffile> Name input .def file\n"));
499 fprintf (file, _(" --output-def <deffile> Name output .def file\n"));
500 fprintf (file, _(" --export-all-symbols Export all symbols to .def\n"));
501 fprintf (file, _(" --no-export-all-symbols Only export .drectve symbols\n"));
502 fprintf (file, _(" --exclude-symbols <list> Exclude <list> from .def\n"));
503 fprintf (file, _(" --no-default-excludes Zap default exclude symbols\n"));
504 fprintf (file, _(" --base-file <basefile> Read linker generated base file\n"));
505 fprintf (file, _(" --no-idata4 Don't generate idata$4 section\n"));
506 fprintf (file, _(" --no-idata5 Don't generate idata$5 section\n"));
507 fprintf (file, _(" -U Add underscores to .lib\n"));
508 fprintf (file, _(" -k Kill @<n> from exported names\n"));
509 fprintf (file, _(" --add-stdcall-alias Add aliases without @<n>\n"));
510 fprintf (file, _(" --as <name> Use <name> for assembler\n"));
511 fprintf (file, _(" --nodelete Keep temp files.\n"));
512 fprintf (file, _(" --no-leading-underscore Entrypoint without underscore\n"));
513 fprintf (file, _(" --leading-underscore Entrypoint with underscore.\n"));
514 fprintf (file, _(" Rest are passed unmodified to the language driver\n"));
515 fprintf (file, "\n\n");
516 if (REPORT_BUGS_TO[0] && status == 0)
517 fprintf (file, _("Report bugs to %s\n"), REPORT_BUGS_TO);
521 #define OPTION_START 149
523 /* GENERIC options. */
524 #define OPTION_QUIET (OPTION_START + 1)
525 #define OPTION_VERBOSE (OPTION_QUIET + 1)
526 #define OPTION_VERSION (OPTION_VERBOSE + 1)
528 /* DLLWRAP options. */
529 #define OPTION_DRY_RUN (OPTION_VERSION + 1)
530 #define OPTION_DRIVER_NAME (OPTION_DRY_RUN + 1)
531 #define OPTION_DRIVER_FLAGS (OPTION_DRIVER_NAME + 1)
532 #define OPTION_DLLTOOL_NAME (OPTION_DRIVER_FLAGS + 1)
533 #define OPTION_ENTRY (OPTION_DLLTOOL_NAME + 1)
534 #define OPTION_IMAGE_BASE (OPTION_ENTRY + 1)
535 #define OPTION_TARGET (OPTION_IMAGE_BASE + 1)
536 #define OPTION_MNO_CYGWIN (OPTION_TARGET + 1)
537 #define OPTION_NO_LEADING_UNDERSCORE (OPTION_MNO_CYGWIN + 1)
538 #define OPTION_LEADING_UNDERSCORE (OPTION_NO_LEADING_UNDERSCORE + 1)
540 /* DLLTOOL options. */
541 #define OPTION_NODELETE (OPTION_LEADING_UNDERSCORE + 1)
542 #define OPTION_DLLNAME (OPTION_NODELETE + 1)
543 #define OPTION_NO_IDATA4 (OPTION_DLLNAME + 1)
544 #define OPTION_NO_IDATA5 (OPTION_NO_IDATA4 + 1)
545 #define OPTION_OUTPUT_EXP (OPTION_NO_IDATA5 + 1)
546 #define OPTION_OUTPUT_DEF (OPTION_OUTPUT_EXP + 1)
547 #define OPTION_EXPORT_ALL_SYMS (OPTION_OUTPUT_DEF + 1)
548 #define OPTION_NO_EXPORT_ALL_SYMS (OPTION_EXPORT_ALL_SYMS + 1)
549 #define OPTION_EXCLUDE_SYMS (OPTION_NO_EXPORT_ALL_SYMS + 1)
550 #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_EXCLUDE_SYMS + 1)
551 #define OPTION_OUTPUT_LIB (OPTION_NO_DEFAULT_EXCLUDES + 1)
552 #define OPTION_DEF (OPTION_OUTPUT_LIB + 1)
553 #define OPTION_ADD_UNDERSCORE (OPTION_DEF + 1)
554 #define OPTION_KILLAT (OPTION_ADD_UNDERSCORE + 1)
555 #define OPTION_HELP (OPTION_KILLAT + 1)
556 #define OPTION_MACHINE (OPTION_HELP + 1)
557 #define OPTION_ADD_INDIRECT (OPTION_MACHINE + 1)
558 #define OPTION_BASE_FILE (OPTION_ADD_INDIRECT + 1)
559 #define OPTION_AS (OPTION_BASE_FILE + 1)
561 static const struct option long_options[] =
563 /* generic options. */
564 {"quiet", no_argument, NULL, 'q'},
565 {"verbose", no_argument, NULL, 'v'},
566 {"version", no_argument, NULL, OPTION_VERSION},
567 {"implib", required_argument, NULL, OPTION_OUTPUT_LIB},
569 /* dllwrap options. */
570 {"dry-run", no_argument, NULL, OPTION_DRY_RUN},
571 {"driver-name", required_argument, NULL, OPTION_DRIVER_NAME},
572 {"driver-flags", required_argument, NULL, OPTION_DRIVER_FLAGS},
573 {"dlltool-name", required_argument, NULL, OPTION_DLLTOOL_NAME},
574 {"entry", required_argument, NULL, 'e'},
575 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
576 {"target", required_argument, NULL, OPTION_TARGET},
577 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
578 {"leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
580 /* dlltool options. */
581 {"no-delete", no_argument, NULL, 'n'},
582 {"dllname", required_argument, NULL, OPTION_DLLNAME},
583 {"no-idata4", no_argument, NULL, OPTION_NO_IDATA4},
584 {"no-idata5", no_argument, NULL, OPTION_NO_IDATA5},
585 {"output-exp", required_argument, NULL, OPTION_OUTPUT_EXP},
586 {"output-def", required_argument, NULL, OPTION_OUTPUT_DEF},
587 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL_SYMS},
588 {"no-export-all-symbols", no_argument, NULL, OPTION_NO_EXPORT_ALL_SYMS},
589 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMS},
590 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
591 {"output-lib", required_argument, NULL, OPTION_OUTPUT_LIB},
592 {"def", required_argument, NULL, OPTION_DEF},
593 {"add-underscore", no_argument, NULL, 'U'},
594 {"killat", no_argument, NULL, 'k'},
595 {"add-stdcall-alias", no_argument, NULL, 'A'},
596 {"help", no_argument, NULL, 'h'},
597 {"machine", required_argument, NULL, OPTION_MACHINE},
598 {"add-indirect", no_argument, NULL, OPTION_ADD_INDIRECT},
599 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
600 {"as", required_argument, NULL, OPTION_AS},
604 int main (int, char **);
607 main (int argc, char **argv)
612 char **saved_argv = 0;
617 int *dlltool_arg_indices;
618 int *driver_arg_indices;
620 char *driver_flags = 0;
621 char *output_lib_file_name = 0;
623 dyn_string_t dlltool_cmdline;
624 dyn_string_t driver_cmdline;
626 int def_file_seen = 0;
628 char *image_base_str = 0;
632 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
633 setlocale (LC_MESSAGES, "");
635 #if defined (HAVE_SETLOCALE)
636 setlocale (LC_CTYPE, "");
638 bindtextdomain (PACKAGE, LOCALEDIR);
639 textdomain (PACKAGE);
641 expandargv (&argc, &argv);
643 saved_argv = (char **) xmalloc (argc * sizeof (char*));
644 dlltool_arg_indices = (int *) xmalloc (argc * sizeof (int));
645 driver_arg_indices = (int *) xmalloc (argc * sizeof (int));
646 for (i = 0; i < argc; ++i)
648 size_t len = strlen (argv[i]);
649 char *arg = (char *) xmalloc (len + 1);
650 strcpy (arg, argv[i]);
653 dlltool_arg_indices[i] = 0;
654 driver_arg_indices[i] = 1;
658 /* We recognize dllwrap and dlltool options, and everything else is
659 passed onto the language driver (eg., to GCC). We collect options
660 to dlltool and driver in dlltool_args and driver_args. */
663 while ((c = getopt_long_only (argc, argv, "nkAqve:Uho:l:L:I:",
664 long_options, (int *) 0)) != EOF)
668 int single_word_option_value_pair;
672 single_word_option_value_pair = 0;
676 /* We recognize this option, so it has to be either dllwrap or
677 dlltool option. Do not pass to driver unless it's one of the
678 generic options that are passed to all the tools (such as -v)
679 which are dealt with later. */
683 /* deal with generic and dllwrap options first. */
696 print_version (prog_name);
699 entry_point = optarg;
701 case OPTION_IMAGE_BASE:
702 image_base_str = optarg;
705 def_file_name = optarg;
714 dll_file_name = optarg;
727 case OPTION_DRIVER_NAME:
728 driver_name = optarg;
730 case OPTION_DRIVER_FLAGS:
731 driver_flags = optarg;
733 case OPTION_DLLTOOL_NAME:
734 dlltool_name = optarg;
739 case OPTION_MNO_CYGWIN:
740 target = "i386-mingw32";
742 case OPTION_NO_LEADING_UNDERSCORE:
743 is_leading_underscore = 0;
745 case OPTION_LEADING_UNDERSCORE:
746 is_leading_underscore = 1;
748 case OPTION_BASE_FILE:
749 base_file_name = optarg;
750 delete_base_file = 0;
752 case OPTION_OUTPUT_EXP:
753 exp_file_name = optarg;
756 case OPTION_EXPORT_ALL_SYMS:
759 case OPTION_OUTPUT_LIB:
760 output_lib_file_name = optarg;
769 /* Handle passing through --option=value case. */
771 && saved_argv[optind-1][0] == '-'
772 && saved_argv[optind-1][1] == '-'
773 && strchr (saved_argv[optind-1], '='))
774 single_word_option_value_pair = 1;
778 dlltool_arg_indices[optind-1] = 1;
779 if (optarg && ! single_word_option_value_pair)
781 dlltool_arg_indices[optind-2] = 1;
787 driver_arg_indices[optind-1] = 0;
788 if (optarg && ! single_word_option_value_pair)
790 driver_arg_indices[optind-2] = 0;
796 if (! dll_name && ! dll_file_name)
798 warn (_("Must provide at least one of -o or --dllname options"));
803 dll_name = xstrdup (mybasename (dll_file_name));
805 else if (! dll_file_name)
807 dll_file_name = xstrdup (dll_name);
810 /* Deduce driver-name and dlltool-name from our own. */
811 if (driver_name == NULL)
812 driver_name = deduce_name ("gcc");
814 if (dlltool_name == NULL)
815 dlltool_name = deduce_name ("dlltool");
819 char *fileprefix = choose_temp_base ();
821 def_file_name = (char *) xmalloc (strlen (fileprefix) + 5);
822 sprintf (def_file_name, "%s.def",
823 (dontdeltemps) ? mybasename (fileprefix) : fileprefix);
827 warn (_("no export definition file provided.\n\
828 Creating one, but that may not be what you want"));
831 /* Set the target platform. */
832 if (strstr (target, "cygwin"))
833 which_target = CYGWIN_TARGET;
834 else if (strstr (target, "mingw"))
835 which_target = MINGW_TARGET;
837 which_target = UNKNOWN_TARGET;
839 if (! strncmp (target, "arm", 3))
841 else if (!strncmp (target, "x86_64", 6)
842 || !strncmp (target, "athlon64", 8)
843 || !strncmp (target, "amd64", 5))
845 else if (target[0] == 'i' && (target[1] >= '3' && target[1] <= '6')
846 && target[2] == '8' && target[3] == '6')
849 which_cpu = UNKNOWN_CPU;
851 if (is_leading_underscore == -1)
852 is_leading_underscore = (which_cpu != X64_CPU && which_cpu != ARM_CPU);
854 /* Re-create the command lines as a string, taking care to quote stuff. */
855 dlltool_cmdline = dyn_string_new (cmdline_len);
857 dyn_string_append_cstr (dlltool_cmdline, " -v");
859 dyn_string_append_cstr (dlltool_cmdline, " --dllname ");
860 dyn_string_append_cstr (dlltool_cmdline, dll_name);
862 for (i = 1; i < argc; ++i)
864 if (dlltool_arg_indices[i])
866 char *arg = saved_argv[i];
867 int quote = (strchr (arg, ' ') || strchr (arg, '\t'));
868 dyn_string_append_cstr (dlltool_cmdline,
869 (quote) ? " \"" : " ");
870 dyn_string_append_cstr (dlltool_cmdline, arg);
871 dyn_string_append_cstr (dlltool_cmdline,
872 (quote) ? "\"" : "");
876 driver_cmdline = dyn_string_new (cmdline_len);
877 if (! driver_flags || strlen (driver_flags) == 0)
879 switch (which_target)
882 driver_flags = cygwin_driver_flags;
886 driver_flags = mingw32_driver_flags;
890 driver_flags = generic_driver_flags;
894 dyn_string_append_cstr (driver_cmdline, driver_flags);
895 dyn_string_append_cstr (driver_cmdline, " -o ");
896 dyn_string_append_cstr (driver_cmdline, dll_file_name);
898 if (is_leading_underscore == 0)
899 dyn_string_append_cstr (driver_cmdline, " --no-leading-underscore");
900 else if (is_leading_underscore == 1)
901 dyn_string_append_cstr (driver_cmdline, " --leading-underscore");
903 if (! entry_point || strlen (entry_point) == 0)
905 const char *prefix = (is_leading_underscore != 0 ? "_" : "");
906 const char *postfix = "";
907 const char *name_entry;
909 if (which_cpu == X86_CPU || which_cpu == UNKNOWN_CPU)
912 switch (which_target)
915 name_entry = "_cygwin_dll_entry";
919 name_entry = "DllMainCRTStartup";
923 name_entry = "DllMain";
927 (char *) malloc (strlen (name_entry) + strlen (prefix)
928 + strlen (postfix) + 1);
929 sprintf (entry_point, "%s%s%s", prefix, name_entry, postfix);
931 dyn_string_append_cstr (driver_cmdline, " -Wl,-e,");
932 dyn_string_append_cstr (driver_cmdline, entry_point);
933 dyn_string_append_cstr (dlltool_cmdline, " --exclude-symbol=");
934 dyn_string_append_cstr (dlltool_cmdline,
935 (entry_point[0] == '_') ? entry_point+1 : entry_point);
937 if (! image_base_str || strlen (image_base_str) == 0)
939 char *tmpbuf = (char *) xmalloc (sizeof ("0x12345678") + 1);
940 unsigned long hash = strhash (dll_file_name);
941 sprintf (tmpbuf, "0x%.8lX", 0x60000000|((hash<<16)&0xFFC0000));
942 image_base_str = tmpbuf;
945 dyn_string_append_cstr (driver_cmdline, " -Wl,--image-base,");
946 dyn_string_append_cstr (driver_cmdline, image_base_str);
950 dyn_string_append_cstr (driver_cmdline, " -v");
953 for (i = 1; i < argc; ++i)
955 if (driver_arg_indices[i])
957 char *arg = saved_argv[i];
958 int quote = (strchr (arg, ' ') || strchr (arg, '\t'));
959 dyn_string_append_cstr (driver_cmdline,
960 (quote) ? " \"" : " ");
961 dyn_string_append_cstr (driver_cmdline, arg);
962 dyn_string_append_cstr (driver_cmdline,
963 (quote) ? "\"" : "");
967 /* Step pre-1. If no --def <EXPORT_DEF> is specified,
968 then create it and then pass it on. */
972 dyn_string_t step_pre1;
974 step_pre1 = dyn_string_new (1024);
976 dyn_string_append_cstr (step_pre1, dlltool_cmdline->s);
979 dyn_string_append_cstr (step_pre1, " --export-all --exclude-symbol=");
980 dyn_string_append_cstr (step_pre1,
981 "_cygwin_dll_entry@12,DllMainCRTStartup@12,DllMain@12,DllEntryPoint@12");
983 dyn_string_append_cstr (step_pre1, " --output-def ");
984 dyn_string_append_cstr (step_pre1, def_file_name);
986 for (i = 1; i < argc; ++i)
988 if (driver_arg_indices[i])
990 char *arg = saved_argv[i];
991 size_t len = strlen (arg);
992 if (len >= 2 && arg[len-2] == '.'
993 && (arg[len-1] == 'o' || arg[len-1] == 'a'))
995 int quote = (strchr (arg, ' ') || strchr (arg, '\t'));
996 dyn_string_append_cstr (step_pre1,
997 (quote) ? " \"" : " ");
998 dyn_string_append_cstr (step_pre1, arg);
999 dyn_string_append_cstr (step_pre1,
1000 (quote) ? "\"" : "");
1005 if (run (dlltool_name, step_pre1->s))
1006 cleanup_and_exit (1);
1008 dyn_string_delete (step_pre1);
1011 dyn_string_append_cstr (dlltool_cmdline, " --def ");
1012 dyn_string_append_cstr (dlltool_cmdline, def_file_name);
1016 fprintf (stderr, _("DLLTOOL name : %s\n"), dlltool_name);
1017 fprintf (stderr, _("DLLTOOL options : %s\n"), dlltool_cmdline->s);
1018 fprintf (stderr, _("DRIVER name : %s\n"), driver_name);
1019 fprintf (stderr, _("DRIVER options : %s\n"), driver_cmdline->s);
1022 /* Step 1. Call GCC/LD to create base relocation file. If using GCC, the
1023 driver command line will look like the following:
1025 % gcc -Wl,--dll --Wl,--base-file,foo.base [rest of command line]
1027 If the user does not specify a base name, create temporary one that
1028 is deleted at exit. */
1030 if (! base_file_name)
1032 char *fileprefix = choose_temp_base ();
1033 base_file_name = (char *) xmalloc (strlen (fileprefix) + 6);
1034 sprintf (base_file_name, "%s.base",
1035 (dontdeltemps) ? mybasename (fileprefix) : fileprefix);
1036 delete_base_file = 1;
1043 dyn_string_t step1 = dyn_string_new (driver_cmdline->length
1044 + strlen (base_file_name)
1046 dyn_string_append_cstr (step1, "-Wl,--base-file,");
1047 quote = (strchr (base_file_name, ' ')
1048 || strchr (base_file_name, '\t'));
1049 dyn_string_append_cstr (step1,
1050 (quote) ? "\"" : "");
1051 dyn_string_append_cstr (step1, base_file_name);
1052 dyn_string_append_cstr (step1,
1053 (quote) ? "\"" : "");
1054 if (driver_cmdline->length)
1056 dyn_string_append_cstr (step1, " ");
1057 dyn_string_append_cstr (step1, driver_cmdline->s);
1060 if (run (driver_name, step1->s))
1061 cleanup_and_exit (1);
1063 dyn_string_delete (step1);
1066 /* Step 2. generate the exp file by running dlltool.
1067 dlltool command line will look like the following:
1069 % dlltool -Wl,--dll --Wl,--base-file,foo.base [rest of command line]
1071 If the user does not specify a base name, create temporary one that
1072 is deleted at exit. */
1074 if (! exp_file_name)
1076 char *p = strrchr (dll_name, '.');
1077 size_t prefix_len = (p) ? (size_t) (p - dll_name) : strlen (dll_name);
1079 exp_file_name = (char *) xmalloc (prefix_len + 4 + 1);
1080 strncpy (exp_file_name, dll_name, prefix_len);
1081 exp_file_name[prefix_len] = '\0';
1082 strcat (exp_file_name, ".exp");
1083 delete_exp_file = 1;
1089 dyn_string_t step2 = dyn_string_new (dlltool_cmdline->length
1090 + strlen (base_file_name)
1091 + strlen (exp_file_name)
1094 dyn_string_append_cstr (step2, "--base-file ");
1095 quote = (strchr (base_file_name, ' ')
1096 || strchr (base_file_name, '\t'));
1097 dyn_string_append_cstr (step2,
1098 (quote) ? "\"" : "");
1099 dyn_string_append_cstr (step2, base_file_name);
1100 dyn_string_append_cstr (step2,
1101 (quote) ? "\" " : " ");
1103 dyn_string_append_cstr (step2, "--output-exp ");
1104 quote = (strchr (exp_file_name, ' ')
1105 || strchr (exp_file_name, '\t'));
1106 dyn_string_append_cstr (step2,
1107 (quote) ? "\"" : "");
1108 dyn_string_append_cstr (step2, exp_file_name);
1109 dyn_string_append_cstr (step2,
1110 (quote) ? "\"" : "");
1112 if (dlltool_cmdline->length)
1114 dyn_string_append_cstr (step2, " ");
1115 dyn_string_append_cstr (step2, dlltool_cmdline->s);
1118 if (run (dlltool_name, step2->s))
1119 cleanup_and_exit (1);
1121 dyn_string_delete (step2);
1125 * Step 3. Call GCC/LD to again, adding the exp file this time.
1126 * driver command line will look like the following:
1128 * % gcc -Wl,--dll --Wl,--base-file,foo.base foo.exp [rest ...]
1134 dyn_string_t step3 = dyn_string_new (driver_cmdline->length
1135 + strlen (exp_file_name)
1136 + strlen (base_file_name)
1138 dyn_string_append_cstr (step3, "-Wl,--base-file,");
1139 quote = (strchr (base_file_name, ' ')
1140 || strchr (base_file_name, '\t'));
1141 dyn_string_append_cstr (step3,
1142 (quote) ? "\"" : "");
1143 dyn_string_append_cstr (step3, base_file_name);
1144 dyn_string_append_cstr (step3,
1145 (quote) ? "\" " : " ");
1147 quote = (strchr (exp_file_name, ' ')
1148 || strchr (exp_file_name, '\t'));
1149 dyn_string_append_cstr (step3,
1150 (quote) ? "\"" : "");
1151 dyn_string_append_cstr (step3, exp_file_name);
1152 dyn_string_append_cstr (step3,
1153 (quote) ? "\"" : "");
1155 if (driver_cmdline->length)
1157 dyn_string_append_cstr (step3, " ");
1158 dyn_string_append_cstr (step3, driver_cmdline->s);
1161 if (run (driver_name, step3->s))
1162 cleanup_and_exit (1);
1164 dyn_string_delete (step3);
1169 * Step 4. Run DLLTOOL again using the same command line.
1174 dyn_string_t step4 = dyn_string_new (dlltool_cmdline->length
1175 + strlen (base_file_name)
1176 + strlen (exp_file_name)
1179 dyn_string_append_cstr (step4, "--base-file ");
1180 quote = (strchr (base_file_name, ' ')
1181 || strchr (base_file_name, '\t'));
1182 dyn_string_append_cstr (step4,
1183 (quote) ? "\"" : "");
1184 dyn_string_append_cstr (step4, base_file_name);
1185 dyn_string_append_cstr (step4,
1186 (quote) ? "\" " : " ");
1188 dyn_string_append_cstr (step4, "--output-exp ");
1189 quote = (strchr (exp_file_name, ' ')
1190 || strchr (exp_file_name, '\t'));
1191 dyn_string_append_cstr (step4,
1192 (quote) ? "\"" : "");
1193 dyn_string_append_cstr (step4, exp_file_name);
1194 dyn_string_append_cstr (step4,
1195 (quote) ? "\"" : "");
1197 if (dlltool_cmdline->length)
1199 dyn_string_append_cstr (step4, " ");
1200 dyn_string_append_cstr (step4, dlltool_cmdline->s);
1203 if (output_lib_file_name)
1205 dyn_string_append_cstr (step4, " --output-lib ");
1206 dyn_string_append_cstr (step4, output_lib_file_name);
1209 if (run (dlltool_name, step4->s))
1210 cleanup_and_exit (1);
1212 dyn_string_delete (step4);
1217 * Step 5. Link it all together and be done with it.
1218 * driver command line will look like the following:
1220 * % gcc -Wl,--dll foo.exp [rest ...]
1227 dyn_string_t step5 = dyn_string_new (driver_cmdline->length
1228 + strlen (exp_file_name)
1230 quote = (strchr (exp_file_name, ' ')
1231 || strchr (exp_file_name, '\t'));
1232 dyn_string_append_cstr (step5,
1233 (quote) ? "\"" : "");
1234 dyn_string_append_cstr (step5, exp_file_name);
1235 dyn_string_append_cstr (step5,
1236 (quote) ? "\"" : "");
1238 if (driver_cmdline->length)
1240 dyn_string_append_cstr (step5, " ");
1241 dyn_string_append_cstr (step5, driver_cmdline->s);
1244 if (run (driver_name, step5->s))
1245 cleanup_and_exit (1);
1247 dyn_string_delete (step5);
1250 cleanup_and_exit (0);