1 /* Collect static initialization info into data structures
2 that can be traversed by C++ initialization and finalization
5 Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
6 Contributed by Chris Smith (csmith@convex.com).
7 Heavily modified by Michael Meissner (meissner@cygnus.com),
8 Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com).
10 This file is part of GNU CC.
12 GNU CC is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2, or (at your option)
17 GNU CC is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with GNU CC; see the file COPYING. If not, write to
24 the Free Software Foundation, 59 Temple Place - Suite 330,
25 Boston, MA 02111-1307, USA. */
28 /* Build tables of static constructors and destructors and run ld. */
31 #include <sys/types.h>
53 extern const char *const sys_errlist[];
55 extern char *sys_errlist[];
62 /* Obstack allocation and deallocation routines. */
63 #define obstack_chunk_alloc xmalloc
64 #define obstack_chunk_free free
66 #if !defined (__STDC__) && !defined (const)
74 /* Add prototype support. */
76 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
77 #define PROTO(ARGS) ARGS
79 #define PROTO(ARGS) ()
90 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
93 #define WTERMSIG(S) ((S) & 0x7f)
96 #define WIFEXITED(S) (((S) & 0xff) == 0)
99 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
102 /* On MSDOS, write temp files in current dir
103 because there's no place else we can expect to use. */
106 #define P_tmpdir "./"
110 /* On certain systems, we have code that works by scanning the object file
111 directly. But this code uses system-specific header files and library
112 functions, so turn it off in a cross-compiler. Likewise, the names of
113 the utilities aren't correct for a cross-compiler; we have to hope that
114 cross-versions are in the proper directories. */
117 #undef SUNOS4_SHARED_LIBRARIES
118 #undef OBJECT_FORMAT_COFF
119 #undef OBJECT_FORMAT_ROSE
120 #undef MD_EXEC_PREFIX
121 #undef REAL_LD_FILE_NAME
122 #undef REAL_NM_FILE_NAME
123 #undef REAL_STRIP_FILE_NAME
126 /* If we can't use a special method, use the ordinary one:
127 run nm to find what symbols are present.
128 In a cross-compiler, this means you need a cross nm,
129 but that isn't quite as unpleasant as special headers. */
131 #if !defined (OBJECT_FORMAT_COFF) && !defined (OBJECT_FORMAT_ROSE)
132 #define OBJECT_FORMAT_NONE
135 #ifdef OBJECT_FORMAT_COFF
144 /* Many versions of ldfcn.h define these. */
152 /* Some systems have an ISCOFF macro, but others do not. In some cases
153 the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines
154 that either do not have an ISCOFF macro in /usr/include or for those
155 where it is wrong. */
158 #define MY_ISCOFF(X) ISCOFF (X)
161 #ifdef XCOFF_DEBUGGING_INFO
162 #define XCOFF_SCAN_LIBS
165 #endif /* OBJECT_FORMAT_COFF */
167 #ifdef OBJECT_FORMAT_ROSE
174 #include <sys/mman.h>
178 #include <mach_o_format.h>
179 #include <mach_o_header.h>
180 #include <mach_o_vals.h>
181 #include <mach_o_types.h>
183 #endif /* OBJECT_FORMAT_ROSE */
185 #ifdef OBJECT_FORMAT_NONE
187 /* Default flags to pass to nm. */
189 #define NM_FLAGS "-p"
192 #endif /* OBJECT_FORMAT_NONE */
194 /* Some systems use __main in a way incompatible with its use in gcc, in these
195 cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
196 give the same symbol without quotes for an alternative entry point. You
197 must define both, or neither. */
199 #define NAME__MAIN "__main"
200 #define SYMBOL__MAIN __main
203 #if defined (LDD_SUFFIX) || SUNOS4_SHARED_LIBRARIES || defined(XCOFF_SCAN_LIBS)
204 #define SCAN_LIBRARIES
208 int do_collecting = 1;
210 int do_collecting = 0;
213 /* Linked lists of constructor and destructor names. */
229 /* Enumeration giving which pass this is for scanning the program file. */
232 PASS_FIRST, /* without constructors */
233 PASS_OBJ, /* individual objects */
234 PASS_LIB, /* looking for shared libraries */
235 PASS_SECOND /* with constructors linked in */
238 #ifndef NO_SYS_SIGLIST
239 #ifndef DONT_DECLARE_SYS_SIGLIST
240 extern char *sys_siglist[];
243 extern char *version_string;
245 int vflag; /* true if -v */
246 static int rflag; /* true if -r */
247 static int strip_flag; /* true if -s */
249 int debug; /* true if -debug */
251 static int shared_obj; /* true if -shared */
253 static int temp_filename_length; /* Length of temp_filename */
254 static char *temp_filename; /* Base of temp filenames */
255 static char *c_file; /* <xxx>.c for constructor/destructor list. */
256 static char *o_file; /* <xxx>.o for constructor/destructor list. */
257 static char *export_file; /* <xxx>.x for AIX export list. */
258 char *ldout; /* File for ld errors. */
259 static char *output_file; /* Output file for ld. */
260 static char *nm_file_name; /* pathname of nm */
261 static char *ldd_file_name; /* pathname of ldd (or equivalent) */
262 static char *strip_file_name; /* pathname of strip */
263 char *c_file_name; /* pathname of gcc */
264 static char *initname, *fininame; /* names of init and fini funcs */
266 static struct head constructors; /* list of constructors found */
267 static struct head destructors; /* list of destructors found */
268 static struct head exports; /* list of exported symbols */
270 struct obstack temporary_obstack;
271 struct obstack permanent_obstack;
272 char * temporary_firstobj;
274 /* Defined in the automatically-generated underscore.c. */
275 extern int prepends_underscore;
277 extern char *getenv ();
278 extern char *mktemp ();
279 extern FILE *fdopen ();
281 /* Structure to hold all the directories in which to search for files to
286 char *prefix; /* String to prepend to the path. */
287 struct prefix_list *next; /* Next in linked list. */
292 struct prefix_list *plist; /* List of prefixes to try */
293 int max_len; /* Max length of a prefix in PLIST */
294 char *name; /* Name of this list (used in config stuff) */
297 void collect_exit PROTO((int));
298 void collect_execute PROTO((char *, char **, char *));
299 void dump_file PROTO((char *));
300 static void handler PROTO((int));
301 static int is_ctor_dtor PROTO((char *));
302 static void choose_temp_base PROTO((void));
303 static int is_in_prefix_list PROTO((struct path_prefix *, char *, int));
304 static char *find_a_file PROTO((struct path_prefix *, char *));
305 static void add_prefix PROTO((struct path_prefix *, char *));
306 static void prefix_from_env PROTO((char *, struct path_prefix *));
307 static void prefix_from_string PROTO((char *, struct path_prefix *));
308 static void do_wait PROTO((char *));
309 static void fork_execute PROTO((char *, char **));
310 static void maybe_unlink PROTO((char *));
311 static void add_to_list PROTO((struct head *, char *));
312 static void write_list PROTO((FILE *, char *, struct id *));
313 static void write_list_with_asm PROTO((FILE *, char *, struct id *));
314 static void write_c_file PROTO((FILE *, char *));
315 static void write_export_file PROTO((FILE *));
316 static void scan_prog_file PROTO((char *, enum pass));
317 static void scan_libraries PROTO((char *));
322 extern char *index ();
323 extern char *rindex ();
339 while ((fd = dup (oldfd)) != newfd && fd >= 0) /* good enough for low fd's */
342 close (fdtmp[--fdx]);
358 static char buffer[30];
362 if (e > 0 && e < sys_nerr)
363 return sys_errlist[e];
365 sprintf (buffer, "Unknown error %d", e);
370 /* Delete tempfiles and exit function. */
373 collect_exit (status)
376 if (c_file != 0 && c_file[0])
377 maybe_unlink (c_file);
379 if (o_file != 0 && o_file[0])
380 maybe_unlink (o_file);
382 if (export_file != 0 && export_file[0])
383 maybe_unlink (export_file);
385 if (ldout != 0 && ldout[0])
388 maybe_unlink (ldout);
391 if (status != 0 && output_file != 0 && output_file[0])
392 maybe_unlink (output_file);
398 /* Die when sys call fails. */
401 fatal_perror (string, arg1, arg2, arg3)
402 char *string, *arg1, *arg2, *arg3;
406 fprintf (stderr, "collect2: ");
407 fprintf (stderr, string, arg1, arg2, arg3);
408 fprintf (stderr, ": %s\n", my_strerror (e));
415 fatal (string, arg1, arg2, arg3)
416 char *string, *arg1, *arg2, *arg3;
418 fprintf (stderr, "collect2: ");
419 fprintf (stderr, string, arg1, arg2, arg3);
420 fprintf (stderr, "\n");
424 /* Write error message. */
427 error (string, arg1, arg2, arg3, arg4)
428 char *string, *arg1, *arg2, *arg3, *arg4;
430 fprintf (stderr, "collect2: ");
431 fprintf (stderr, string, arg1, arg2, arg3, arg4);
432 fprintf (stderr, "\n");
435 /* In case obstack is linked in, and abort is defined to fancy_abort,
436 provide a default entry. */
441 fatal ("internal error");
449 if (c_file != 0 && c_file[0])
450 maybe_unlink (c_file);
452 if (o_file != 0 && o_file[0])
453 maybe_unlink (o_file);
455 if (ldout != 0 && ldout[0])
456 maybe_unlink (ldout);
458 signal (signo, SIG_DFL);
459 kill (getpid (), signo);
464 xcalloc (size1, size2)
467 char *ptr = (char *) calloc (size1, size2);
471 fatal ("out of memory");
479 char *ptr = (char *) malloc (size);
483 fatal ("out of memory");
492 register char *value = (char *) realloc (ptr, size);
494 fatal ("virtual memory exhausted");
502 return access (name, R_OK) == 0;
505 /* Make a copy of a string INPUT with size SIZE. */
508 savestring (input, size)
512 char *output = (char *) xmalloc (size + 1);
513 bcopy (input, output, size);
522 FILE *stream = fopen (name, "r");
523 int no_demangle = !! getenv ("COLLECT_NO_DEMANGLE");
530 while (c = getc (stream),
531 c != EOF && (isalnum (c) || c == '_' || c == '$' || c == '.'))
532 obstack_1grow (&temporary_obstack, c);
533 if (obstack_object_size (&temporary_obstack) > 0)
535 char *word, *p, *result;
536 obstack_1grow (&temporary_obstack, '\0');
537 word = obstack_finish (&temporary_obstack);
540 ++word, putc ('.', stderr);
542 if (*p == '_' && prepends_underscore)
548 result = cplus_demangle (p, DMGL_PARAMS | DMGL_ANSI);
553 fputs (result, stderr);
555 diff = strlen (word) - strlen (result);
557 --diff, putc (' ', stderr);
558 while (diff < 0 && c == ' ')
559 ++diff, c = getc (stream);
564 fputs (word, stderr);
567 obstack_free (&temporary_obstack, temporary_firstobj);
575 /* Decide whether the given symbol is:
576 a constructor (1), a destructor (2), or neither (0). */
582 struct names { char *name; int len; int ret; int two_underscores; };
584 register struct names *p;
586 register char *orig_s = s;
588 static struct names special[] = {
589 #ifdef NO_DOLLAR_IN_LABEL
590 #ifdef NO_DOT_IN_LABEL
591 { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 },
592 { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 },
594 { "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 },
595 { "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 },
598 { "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 },
599 { "GLOBAL_$D$", sizeof ("GLOBAL_$D$")-1, 2, 0 },
601 { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 },
602 { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 },
603 #ifdef CFRONT_LOSSAGE /* Don't collect cfront initialization functions.
604 cfront has its own linker procedure to collect them;
605 if collect2 gets them too, they get collected twice
606 when the cfront procedure is run and the compiler used
607 for linking happens to be GCC. */
608 { "sti__", sizeof ("sti__")-1, 1, 1 },
609 { "std__", sizeof ("std__")-1, 2, 1 },
610 #endif /* CFRONT_LOSSAGE */
614 while ((ch = *s) == '_')
620 for (p = &special[0]; p->len > 0; p++)
623 && (!p->two_underscores || ((s - orig_s) >= 2))
624 && strncmp(s, p->name, p->len) == 0)
633 /* Compute a string to use as the base of all temporary file names.
634 It is substituted for %g. */
639 char *base = getenv ("TMPDIR");
642 if (base == (char *)0)
645 if (access (P_tmpdir, R_OK | W_OK) == 0)
648 if (base == (char *)0)
650 if (access ("/usr/tmp", R_OK | W_OK) == 0)
658 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
659 strcpy (temp_filename, base);
660 if (len > 0 && temp_filename[len-1] != '/')
661 temp_filename[len++] = '/';
662 strcpy (temp_filename + len, "ccXXXXXX");
664 mktemp (temp_filename);
665 temp_filename_length = strlen (temp_filename);
668 /* Routine to add variables to the environment. */
676 #ifndef VMS /* nor about VMS */
678 extern char **environ;
679 char **old_environ = environ;
686 while ((ch = *p++) != '\0' && ch != '=')
692 /* Search for replacing an existing environment variable, and
693 count the number of total environment variables. */
694 for (envp = old_environ; *envp; envp++)
697 if (!strncmp (str, *envp, name_len))
704 /* Add a new environment variable */
705 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
707 bcopy ((char *) old_environ, (char *) (environ + 1),
708 sizeof (char *) * (num_envs+1));
714 #endif /* HAVE_PUTENV */
716 /* By default, colon separates directories in a path. */
717 #ifndef PATH_SEPARATOR
718 #define PATH_SEPARATOR ':'
721 /* We maintain two prefix lists: one from COMPILER_PATH environment variable
722 and one from the PATH variable. */
724 static struct path_prefix cpath, path;
727 /* This is the name of the target machine. We use it to form the name
728 of the files to execute. */
730 static char *target_machine = TARGET_MACHINE;
733 /* Names under which we were executed. Never return one of those files in our
736 static struct path_prefix our_file_names;
738 /* Determine if STRING is in PPREFIX.
740 This utility is currently only used to look up file names. Prefix lists
741 record directory names. This matters to us because the latter has a
742 trailing slash, so I've added a flag to handle both. */
745 is_in_prefix_list (pprefix, string, filep)
746 struct path_prefix *pprefix;
750 struct prefix_list *pl;
754 int len = strlen (string);
756 for (pl = pprefix->plist; pl; pl = pl->next)
758 if (strncmp (pl->prefix, string, len) == 0
759 && strcmp (pl->prefix + len, "/") == 0)
765 for (pl = pprefix->plist; pl; pl = pl->next)
767 if (strcmp (pl->prefix, string) == 0)
775 /* Search for NAME using prefix list PPREFIX. We only look for executable
778 Return 0 if not found, otherwise return its name, allocated with malloc. */
781 find_a_file (pprefix, name)
782 struct path_prefix *pprefix;
786 struct prefix_list *pl;
787 int len = pprefix->max_len + strlen (name) + 1;
789 #ifdef EXECUTABLE_SUFFIX
790 len += strlen (EXECUTABLE_SUFFIX);
793 temp = xmalloc (len);
795 /* Determine the filename to execute (special case for absolute paths). */
799 if (access (name, X_OK) == 0)
806 for (pl = pprefix->plist; pl; pl = pl->next)
808 strcpy (temp, pl->prefix);
810 if (! is_in_prefix_list (&our_file_names, temp, 1)
811 /* This is a kludge, but there seems no way around it. */
812 && strcmp (temp, "./ld") != 0
813 && access (temp, X_OK) == 0)
816 #ifdef EXECUTABLE_SUFFIX
817 /* Some systems have a suffix for executable files.
818 So try appending that. */
819 strcat (temp, EXECUTABLE_SUFFIX);
820 if (! is_in_prefix_list (&our_file_names, temp, 1)
821 && access (temp, X_OK) == 0)
830 /* Add an entry for PREFIX to prefix list PPREFIX. */
833 add_prefix (pprefix, prefix)
834 struct path_prefix *pprefix;
837 struct prefix_list *pl, **prev;
842 for (pl = pprefix->plist; pl->next; pl = pl->next)
847 prev = &pprefix->plist;
849 /* Keep track of the longest prefix */
851 len = strlen (prefix);
852 if (len > pprefix->max_len)
853 pprefix->max_len = len;
855 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
856 pl->prefix = savestring (prefix, len);
861 pl->next = (struct prefix_list *) 0;
865 /* Take the value of the environment variable ENV, break it into a path, and
866 add of the entries to PPREFIX. */
869 prefix_from_env (env, pprefix)
871 struct path_prefix *pprefix;
873 char *p = getenv (env);
876 prefix_from_string (p, pprefix);
880 prefix_from_string (p, pprefix)
882 struct path_prefix *pprefix;
885 char *nstore = (char *) xmalloc (strlen (p) + 3);
890 if (*endp == PATH_SEPARATOR || *endp == 0)
892 strncpy (nstore, startp, endp-startp);
895 strcpy (nstore, "./");
897 else if (endp[-1] != '/')
899 nstore[endp-startp] = '/';
900 nstore[endp-startp+1] = 0;
903 nstore[endp-startp] = 0;
905 add_prefix (pprefix, nstore);
908 endp = startp = endp + 1;
922 char *ld_suffix = "ld";
923 char *full_ld_suffix = ld_suffix;
924 char *real_ld_suffix = "real-ld";
925 char *full_real_ld_suffix = real_ld_suffix;
926 char *collect_ld_suffix = "collect-ld";
927 char *nm_suffix = "nm";
928 char *full_nm_suffix = nm_suffix;
929 char *gnm_suffix = "gnm";
930 char *full_gnm_suffix = gnm_suffix;
932 char *ldd_suffix = LDD_SUFFIX;
933 char *full_ldd_suffix = ldd_suffix;
935 char *strip_suffix = "strip";
936 char *full_strip_suffix = strip_suffix;
937 char *gstrip_suffix = "gstrip";
938 char *full_gstrip_suffix = gstrip_suffix;
940 FILE *outf, *exportf;
947 char **ld1_argv = (char **) xcalloc (sizeof (char *), argc+3);
948 char **ld1 = ld1_argv;
949 char **ld2_argv = (char **) xcalloc (sizeof (char *), argc+6);
950 char **ld2 = ld2_argv;
951 char **object_lst = (char **) xcalloc (sizeof (char *), argc);
952 char **object = object_lst;
954 int num_c_args = argc+7;
961 output_file = "a.out";
963 obstack_begin (&temporary_obstack, 0);
964 obstack_begin (&permanent_obstack, 0);
965 temporary_firstobj = (char *) obstack_alloc (&temporary_obstack, 0);
966 current_demangling_style = gnu_demangling;
968 /* We must check that we do not call ourselves in an infinite
969 recursion loop. We append the name used for us to the COLLECT_NAMES
970 environment variable.
972 In practice, collect will rarely invoke itself. This can happen now
973 that we are no longer called gld. A perfect example is when running
974 gcc in a build directory that has been installed. When looking for
975 ld's, we'll find our installed version and believe that's the real ld. */
977 /* We must also append COLLECT_NAME to COLLECT_NAMES to watch for the
978 previous version of collect (the one that used COLLECT_NAME and only
979 handled two levels of recursion). If we don't we may mutually recurse
980 forever. This can happen (I think) when bootstrapping the old version
981 and a new one is installed (rare, but we should handle it).
982 ??? Hopefully references to COLLECT_NAME can be removed at some point. */
984 collect_name = (char *) getenv ("COLLECT_NAME");
985 collect_names = (char *) getenv ("COLLECT_NAMES");
987 p = (char *) xmalloc (strlen ("COLLECT_NAMES=")
988 + (collect_name ? strlen (collect_name) + 1 : 0)
989 + (collect_names ? strlen (collect_names) + 1 : 0)
990 + strlen (argv[0]) + 1);
991 strcpy (p, "COLLECT_NAMES=");
992 if (collect_name != 0)
993 sprintf (p + strlen (p), "%s%c", collect_name, PATH_SEPARATOR);
994 if (collect_names != 0)
995 sprintf (p + strlen (p), "%s%c", collect_names, PATH_SEPARATOR);
999 prefix_from_env ("COLLECT_NAMES", &our_file_names);
1001 /* Set environment variable COLLECT_NAME to our name so the previous version
1002 of collect won't find us. If it does we'll mutually recurse forever.
1003 This can happen when bootstrapping the new version and an old version is
1005 ??? Hopefully this bit of code can be removed at some point. */
1007 p = xmalloc (strlen ("COLLECT_NAME=") + strlen (argv[0]) + 1);
1008 sprintf (p, "COLLECT_NAME=%s", argv[0]);
1011 p = (char *) getenv ("COLLECT_GCC_OPTIONS");
1016 while (*q && *q != ' ') q++;
1017 if (*p == '-' && p[1] == 'm')
1024 c_ptr = c_argv = (char **) xcalloc (sizeof (char *), num_c_args);
1027 fatal ("no arguments");
1030 if (signal (SIGQUIT, SIG_IGN) != SIG_IGN)
1031 signal (SIGQUIT, handler);
1033 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
1034 signal (SIGINT, handler);
1036 if (signal (SIGALRM, SIG_IGN) != SIG_IGN)
1037 signal (SIGALRM, handler);
1040 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
1041 signal (SIGHUP, handler);
1043 if (signal (SIGSEGV, SIG_IGN) != SIG_IGN)
1044 signal (SIGSEGV, handler);
1046 if (signal (SIGBUS, SIG_IGN) != SIG_IGN)
1047 signal (SIGBUS, handler);
1050 /* Extract COMPILER_PATH and PATH into our prefix list. */
1051 prefix_from_env ("COMPILER_PATH", &cpath);
1052 prefix_from_env ("PATH", &path);
1054 #ifdef CROSS_COMPILE
1055 /* If we look for a program in the compiler directories, we just use
1056 the short name, since these directories are already system-specific.
1057 But it we look for a took in the system directories, we need to
1058 qualify the program name with the target machine. */
1061 = xcalloc (strlen (ld_suffix) + strlen (target_machine) + 2, 1);
1062 strcpy (full_ld_suffix, target_machine);
1063 strcat (full_ld_suffix, "-");
1064 strcat (full_ld_suffix, ld_suffix);
1067 = xcalloc (strlen (real_ld_suffix) + strlen (target_machine) + 2, 1);
1068 strcpy (full_real_ld_suffix, target_machine);
1069 strcat (full_real_ld_suffix, "-");
1070 strcat (full_real_ld_suffix, real_ld_suffix);
1074 = xcalloc (strlen (gld_suffix) + strlen (target_machine) + 2, 1);
1075 strcpy (full_gld_suffix, target_machine);
1076 strcat (full_gld_suffix, "-");
1077 strcat (full_gld_suffix, gld_suffix);
1081 = xcalloc (strlen (nm_suffix) + strlen (target_machine) + 2, 1);
1082 strcpy (full_nm_suffix, target_machine);
1083 strcat (full_nm_suffix, "-");
1084 strcat (full_nm_suffix, nm_suffix);
1087 = xcalloc (strlen (gnm_suffix) + strlen (target_machine) + 2, 1);
1088 strcpy (full_gnm_suffix, target_machine);
1089 strcat (full_gnm_suffix, "-");
1090 strcat (full_gnm_suffix, gnm_suffix);
1094 = xcalloc (strlen (ldd_suffix) + strlen (target_machine) + 2, 1);
1095 strcpy (full_ldd_suffix, target_machine);
1096 strcat (full_ldd_suffix, "-");
1097 strcat (full_ldd_suffix, ldd_suffix);
1101 = xcalloc (strlen (strip_suffix) + strlen (target_machine) + 2, 1);
1102 strcpy (full_strip_suffix, target_machine);
1103 strcat (full_strip_suffix, "-");
1104 strcat (full_strip_suffix, strip_suffix);
1107 = xcalloc (strlen (gstrip_suffix) + strlen (target_machine) + 2, 1);
1108 strcpy (full_gstrip_suffix, target_machine);
1109 strcat (full_gstrip_suffix, "-");
1110 strcat (full_gstrip_suffix, gstrip_suffix);
1111 #endif /* CROSS_COMPILE */
1113 /* Try to discover a valid linker/nm/strip to use. */
1115 /* Maybe we know the right file to use (if not cross). */
1116 #ifdef REAL_LD_FILE_NAME
1117 ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME);
1118 if (ld_file_name == 0)
1120 /* Search the (target-specific) compiler dirs for ld'. */
1121 ld_file_name = find_a_file (&cpath, real_ld_suffix);
1122 /* Likewise for `collect-ld'. */
1123 if (ld_file_name == 0)
1124 ld_file_name = find_a_file (&cpath, collect_ld_suffix);
1125 /* Search the compiler directories for `ld'. We have protection against
1126 recursive calls in find_a_file. */
1127 if (ld_file_name == 0)
1128 ld_file_name = find_a_file (&cpath, ld_suffix);
1129 /* Search the ordinary system bin directories
1130 for `ld' (if native linking) or `TARGET-ld' (if cross). */
1131 if (ld_file_name == 0)
1132 ld_file_name = find_a_file (&path, full_ld_suffix);
1134 /* If we've invoked ourselves, try again with LD_FILE_NAME. */
1136 if (collect_names != 0)
1138 if (ld_file_name != 0)
1140 argv[0] = ld_file_name;
1141 execvp (argv[0], argv);
1143 fatal ("cannot find `ld'");
1146 #ifdef REAL_NM_FILE_NAME
1147 nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME);
1148 if (nm_file_name == 0)
1150 nm_file_name = find_a_file (&cpath, gnm_suffix);
1151 if (nm_file_name == 0)
1152 nm_file_name = find_a_file (&path, full_gnm_suffix);
1153 if (nm_file_name == 0)
1154 nm_file_name = find_a_file (&cpath, nm_suffix);
1155 if (nm_file_name == 0)
1156 nm_file_name = find_a_file (&path, full_nm_suffix);
1159 ldd_file_name = find_a_file (&cpath, ldd_suffix);
1160 if (ldd_file_name == 0)
1161 ldd_file_name = find_a_file (&path, full_ldd_suffix);
1164 #ifdef REAL_STRIP_FILE_NAME
1165 strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME);
1166 if (strip_file_name == 0)
1168 strip_file_name = find_a_file (&cpath, gstrip_suffix);
1169 if (strip_file_name == 0)
1170 strip_file_name = find_a_file (&path, full_gstrip_suffix);
1171 if (strip_file_name == 0)
1172 strip_file_name = find_a_file (&cpath, strip_suffix);
1173 if (strip_file_name == 0)
1174 strip_file_name = find_a_file (&path, full_strip_suffix);
1176 /* Determine the full path name of the C compiler to use. */
1177 c_file_name = getenv ("COLLECT_GCC");
1178 if (c_file_name == 0)
1180 #ifdef CROSS_COMPILE
1181 c_file_name = xcalloc (sizeof ("gcc-") + strlen (target_machine) + 1, 1);
1182 strcpy (c_file_name, target_machine);
1183 strcat (c_file_name, "-gcc");
1185 c_file_name = "gcc";
1189 p = find_a_file (&cpath, c_file_name);
1191 /* Here it should be safe to use the system search path since we should have
1192 already qualified the name of the compiler when it is needed. */
1194 p = find_a_file (&path, c_file_name);
1199 *ld1++ = *ld2++ = ld_file_name;
1201 /* Make temp file names. */
1202 choose_temp_base ();
1203 c_file = xcalloc (temp_filename_length + sizeof (".c"), 1);
1204 o_file = xcalloc (temp_filename_length + sizeof (".o"), 1);
1205 export_file = xmalloc (temp_filename_length + sizeof (".x"));
1206 ldout = xmalloc (temp_filename_length + sizeof (".ld"));
1207 sprintf (ldout, "%s.ld", temp_filename);
1208 sprintf (c_file, "%s.c", temp_filename);
1209 sprintf (o_file, "%s.o", temp_filename);
1210 sprintf (export_file, "%s.x", temp_filename);
1211 *c_ptr++ = c_file_name;
1216 /* !!! When GCC calls collect2,
1217 it does not know whether it is calling collect2 or ld.
1218 So collect2 cannot meaningfully understand any options
1219 except those ld understands.
1220 If you propose to make GCC pass some other option,
1221 just imagine what will happen if ld is really ld!!! */
1223 /* Parse arguments. Remember output file spec, pass the rest to ld. */
1224 /* After the first file, put in the c++ rt0. */
1227 while ((arg = *++argv) != (char *)0)
1229 *ld1++ = *ld2++ = arg;
1236 if (!strcmp (arg, "-debug"))
1248 /* place o_file BEFORE this argument! */
1258 output_file = *ld1++ = *ld2++ = *++argv;
1260 output_file = &arg[2];
1269 if (arg[2] == '\0' && do_collecting)
1271 /* We must strip after the nm run, otherwise C++ linking
1272 won't work. Thus we strip in the second ld run, or
1273 else with strip if there is no second ld run. */
1285 else if ((p = rindex (arg, '.')) != (char *)0
1286 && (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0))
1295 /* place o_file BEFORE this argument! */
1306 /* Get any options that the upper GCC wants to pass to the sub-GCC. */
1307 p = (char *) getenv ("COLLECT_GCC_OPTIONS");
1312 while (*q && *q != ' ') q++;
1313 if (*p == '-' && (p[1] == 'm' || p[1] == 'f'))
1314 *c_ptr++ = savestring (p, q - p);
1315 if (strncmp (p, "-shared", sizeof ("shared") - 1) == 0)
1322 #ifdef COLLECT_EXPORT_LIST
1323 /* The AIX linker will discard static constructors in object files if
1324 nothing else in the file is referenced, so look at them first. */
1325 while (object_lst < object)
1326 scan_prog_file (*object_lst++, PASS_OBJ);
1329 char *buf = alloca (strlen (export_file) + 5);
1330 sprintf (buf, "-bE:%s", export_file);
1333 exportf = fopen (export_file, "w");
1334 if (exportf == (FILE *)0)
1335 fatal_perror ("%s", export_file);
1336 write_export_file (exportf);
1337 if (fclose (exportf))
1338 fatal_perror ("closing %s", export_file);
1343 *object = *c_ptr = *ld1 = (char *)0;
1347 fprintf (stderr, "collect2 version %s", version_string);
1348 #ifdef TARGET_VERSION
1351 fprintf (stderr, "\n");
1357 fprintf (stderr, "ld_file_name = %s\n",
1358 (ld_file_name ? ld_file_name : "not found"));
1359 fprintf (stderr, "c_file_name = %s\n",
1360 (c_file_name ? c_file_name : "not found"));
1361 fprintf (stderr, "nm_file_name = %s\n",
1362 (nm_file_name ? nm_file_name : "not found"));
1364 fprintf (stderr, "ldd_file_name = %s\n",
1365 (ldd_file_name ? ldd_file_name : "not found"));
1367 fprintf (stderr, "strip_file_name = %s\n",
1368 (strip_file_name ? strip_file_name : "not found"));
1369 fprintf (stderr, "c_file = %s\n",
1370 (c_file ? c_file : "not found"));
1371 fprintf (stderr, "o_file = %s\n",
1372 (o_file ? o_file : "not found"));
1374 ptr = getenv ("COLLECT_NAMES");
1376 fprintf (stderr, "COLLECT_NAMES = %s\n", ptr);
1378 ptr = getenv ("COLLECT_GCC_OPTIONS");
1380 fprintf (stderr, "COLLECT_GCC_OPTIONS = %s\n", ptr);
1382 ptr = getenv ("COLLECT_GCC");
1384 fprintf (stderr, "COLLECT_GCC = %s\n", ptr);
1386 ptr = getenv ("COMPILER_PATH");
1388 fprintf (stderr, "COMPILER_PATH = %s\n", ptr);
1390 ptr = getenv ("LIBRARY_PATH");
1392 fprintf (stderr, "LIBRARY_PATH = %s\n", ptr);
1394 fprintf (stderr, "\n");
1397 /* Load the program, searching all libraries. */
1399 collect_execute ("ld", ld1_argv, ldout);
1404 /* If -r or they'll be run via some other method, don't build the
1405 constructor or destructor list, just return now. */
1406 if (rflag || ! do_collecting)
1409 /* Examine the namelist with nm and search it for static constructors
1410 and destructors to call.
1411 Write the constructor and destructor tables to a .s file and reload. */
1413 scan_prog_file (output_file, PASS_FIRST);
1415 #ifdef SCAN_LIBRARIES
1416 scan_libraries (output_file);
1421 fprintf (stderr, "%d constructor(s) found\n", constructors.number);
1422 fprintf (stderr, "%d destructor(s) found\n", destructors.number);
1425 if (constructors.number == 0 && destructors.number == 0
1427 /* If we will be running these functions ourselves, we want to emit
1428 stubs into the shared library so that we don't have to relink
1429 dependent programs when we add static objects. */
1434 /* Strip now if it was requested on the command line. */
1437 char **strip_argv = (char **) xcalloc (sizeof (char *), 3);
1438 strip_argv[0] = strip_file_name;
1439 strip_argv[1] = output_file;
1440 strip_argv[2] = (char *) 0;
1441 fork_execute ("strip", strip_argv);
1444 #ifdef COLLECT_EXPORT_LIST
1445 maybe_unlink (export_file);
1450 maybe_unlink(output_file);
1451 outf = fopen (c_file, "w");
1452 if (outf == (FILE *)0)
1453 fatal_perror ("%s", c_file);
1455 write_c_file (outf, c_file);
1458 fatal_perror ("closing %s", c_file);
1460 /* Tell the linker that we have initializer and finalizer functions. */
1461 #ifdef LD_INIT_SWITCH
1462 *ld2++ = LD_INIT_SWITCH;
1464 *ld2++ = LD_FINI_SWITCH;
1469 #ifdef COLLECT_EXPORT_LIST
1472 add_to_list (&exports, initname);
1473 add_to_list (&exports, fininame);
1474 add_to_list (&exports, "_GLOBAL__DI");
1475 add_to_list (&exports, "_GLOBAL__DD");
1476 exportf = fopen (export_file, "w");
1477 if (exportf == (FILE *)0)
1478 fatal_perror ("%s", export_file);
1479 write_export_file (exportf);
1480 if (fclose (exportf))
1481 fatal_perror ("closing %s", export_file);
1487 fprintf (stderr, "\n========== output_file = %s, c_file = %s\n",
1488 output_file, c_file);
1489 write_c_file (stderr, "stderr");
1490 fprintf (stderr, "========== end of c_file\n\n");
1491 #ifdef COLLECT_EXPORT_LIST
1492 fprintf (stderr, "\n========== export_file = %s\n", export_file);
1493 write_export_file (stderr);
1494 fprintf (stderr, "========== end of export_file\n\n");
1498 /* Assemble the constructor and destructor tables.
1499 Link the tables in with the rest of the program. */
1501 fork_execute ("gcc", c_argv);
1502 fork_execute ("ld", ld2_argv);
1504 /* Let scan_prog_file do any final mods (OSF/rose needs this for
1505 constructors/destructors in shared libraries. */
1506 scan_prog_file (output_file, PASS_SECOND);
1508 maybe_unlink (c_file);
1509 maybe_unlink (o_file);
1510 maybe_unlink (export_file);
1515 /* Wait for a process to finish, and exit if a non-zero status is found. */
1526 if (WIFSIGNALED (status))
1528 int sig = WTERMSIG (status);
1529 #ifdef NO_SYS_SIGLIST
1530 error ("%s terminated with signal %d %s",
1533 (status & 0200) ? ", core dumped" : "");
1535 error ("%s terminated with signal %d [%s]%s",
1539 (status & 0200) ? ", core dumped" : "");
1545 if (WIFEXITED (status))
1546 return WEXITSTATUS (status);
1555 int ret = collect_wait (prog);
1558 error ("%s returned %d exit status", prog, ret);
1564 /* Fork and execute a program, and wait for the reply. */
1567 collect_execute (prog, argv, redir)
1580 fprintf (stderr, "%s", argv[0]);
1582 fprintf (stderr, "[cannot find %s]", prog);
1584 for (p_argv = &argv[1]; (str = *p_argv) != (char *)0; p_argv++)
1585 fprintf (stderr, " %s", str);
1587 fprintf (stderr, "\n");
1593 /* If we can't find a program we need, complain error. Do this here
1594 since we might not end up needing something that we couldn't find. */
1597 fatal ("cannot find `%s'", prog);
1603 fatal_perror ("fork");
1605 fatal_perror ("vfork");
1609 if (pid == 0) /* child context */
1614 if (freopen (redir, "a", stdout) == NULL)
1615 fatal_perror ("redirecting stdout");
1616 if (freopen (redir, "a", stderr) == NULL)
1617 fatal_perror ("redirecting stderr");
1620 execvp (argv[0], argv);
1621 fatal_perror ("executing %s", prog);
1626 fork_execute (prog, argv)
1630 collect_execute (prog, argv, NULL);
1634 /* Unlink a file unless we are debugging. */
1643 fprintf (stderr, "[Leaving %s]\n", file);
1647 /* Add a name to a linked list. */
1650 add_to_list (head_ptr, name)
1651 struct head *head_ptr;
1655 = (struct id *) xcalloc (sizeof (struct id) + strlen (name), 1);
1657 static long sequence_number = 0;
1658 strcpy (newid->name, name);
1660 if (head_ptr->first)
1661 head_ptr->last->next = newid;
1663 head_ptr->first = newid;
1665 /* Check for duplicate symbols. */
1666 for (p = head_ptr->first;
1667 strcmp (name, p->name) != 0;
1672 head_ptr->last->next = 0;
1677 newid->sequence = ++sequence_number;
1678 head_ptr->last = newid;
1682 /* Write: `prefix', the names on list LIST, `suffix'. */
1685 write_list (stream, prefix, list)
1692 fprintf (stream, "%sx%d,\n", prefix, list->sequence);
1698 write_list_with_asm (stream, prefix, list)
1705 fprintf (stream, "%sx%d __asm__ (\"%s\");\n",
1706 prefix, list->sequence, list->name);
1711 /* Write out the constructor and destructor tables statically (for a shared
1712 object), along with the functions to execute them. */
1715 write_c_file_stat (stream, name)
1719 char *prefix, *p, *q;
1721 /* Figure out name of output_file, stripping off .so version. */
1722 p = rindex (output_file, '/');
1724 p = (char *) output_file;
1738 if (strncmp (q, ".so", 3) == 0)
1747 /* q points to null at end of the string (or . of the .so version) */
1748 prefix = xmalloc (q - p + 1);
1749 strncpy (prefix, p, q - p);
1751 for (q = prefix; *q; q++)
1755 fprintf (stderr, "\nwrite_c_file - output name is %s, prefix is %s\n",
1756 output_file, prefix);
1758 #define INIT_NAME_FORMAT "_GLOBAL__FI_%s"
1759 initname = xmalloc (strlen (prefix) + sizeof (INIT_NAME_FORMAT) - 2);
1760 sprintf (initname, INIT_NAME_FORMAT, prefix);
1762 #define FINI_NAME_FORMAT "_GLOBAL__FD_%s"
1763 fininame = xmalloc (strlen (prefix) + sizeof (FINI_NAME_FORMAT) - 2);
1764 sprintf (fininame, FINI_NAME_FORMAT, prefix);
1768 /* Write the tables as C code */
1770 fprintf (stream, "static int count;\n");
1771 fprintf (stream, "typedef void entry_pt();\n");
1772 write_list_with_asm (stream, "extern entry_pt ", constructors.first);
1773 fprintf (stream, "void %s() {\n", initname);
1774 if (constructors.number > 0)
1776 fprintf (stream, "\tstatic entry_pt *ctors[] = {\n");
1777 write_list (stream, "\t\t", constructors.first);
1778 fprintf (stream, "\t};\n");
1779 fprintf (stream, "\tentry_pt **p;\n");
1780 fprintf (stream, "\tif (count++ != 0) return;\n");
1781 fprintf (stream, "\tp = ctors + %d;\n", constructors.number);
1782 fprintf (stream, "\twhile (p > ctors) (*--p)();\n");
1785 fprintf (stream, "\t++count;\n");
1786 fprintf (stream, "}\n");
1787 write_list_with_asm (stream, "extern entry_pt ", destructors.first);
1788 fprintf (stream, "void %s() {\n", fininame);
1789 if (destructors.number > 0)
1791 fprintf (stream, "\tstatic entry_pt *dtors[] = {\n");
1792 write_list (stream, "\t\t", destructors.first);
1793 fprintf (stream, "\t};\n");
1794 fprintf (stream, "\tentry_pt **p;\n");
1795 fprintf (stream, "\tif (--count != 0) return;\n");
1796 fprintf (stream, "\tp = dtors;\n");
1797 fprintf (stream, "\twhile (p < dtors + %d) (*p++)();\n",
1798 destructors.number);
1800 fprintf (stream, "}\n");
1804 fprintf (stream, "void _GLOBAL__DI() {\n\t%s();\n}\n", initname);
1805 fprintf (stream, "void _GLOBAL__DD() {\n\t%s();\n}\n", fininame);
1809 /* Write the constructor/destructor tables. */
1812 write_c_file_glob (stream, name)
1816 /* Write the tables as C code */
1818 fprintf (stream, "typedef void entry_pt();\n\n");
1820 write_list_with_asm (stream, "extern entry_pt ", constructors.first);
1822 fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n");
1823 fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number);
1824 write_list (stream, "\t", constructors.first);
1825 fprintf (stream, "\t0\n};\n\n");
1827 write_list_with_asm (stream, "extern entry_pt ", destructors.first);
1829 fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n");
1830 fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number);
1831 write_list (stream, "\t", destructors.first);
1832 fprintf (stream, "\t0\n};\n\n");
1834 fprintf (stream, "extern entry_pt %s;\n", NAME__MAIN);
1835 fprintf (stream, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN);
1839 write_c_file (stream, name)
1843 #ifndef LD_INIT_SWITCH
1845 write_c_file_glob (stream, name);
1848 write_c_file_stat (stream, name);
1852 write_export_file (stream)
1855 struct id *list = exports.first;
1856 for (; list; list = list->next)
1857 fprintf (stream, "%s\n", list->name);
1860 #ifdef OBJECT_FORMAT_NONE
1862 /* Generic version to scan the name list of the loaded program for
1863 the symbols g++ uses for static constructors and destructors.
1865 The constructor table begins at __CTOR_LIST__ and contains a count
1866 of the number of pointers (or -1 if the constructors are built in a
1867 separate section by the linker), followed by the pointers to the
1868 constructor functions, terminated with a null pointer. The
1869 destructor table has the same format, and begins at __DTOR_LIST__. */
1872 scan_prog_file (prog_name, which_pass)
1874 enum pass which_pass;
1876 void (*int_handler) ();
1877 void (*quit_handler) ();
1885 if (which_pass == PASS_SECOND)
1888 /* If we don't have an `nm', complain. */
1889 if (nm_file_name == 0)
1890 fatal ("cannot find `nm'");
1892 nm_argv[argc++] = nm_file_name;
1893 if (NM_FLAGS[0] != '\0')
1894 nm_argv[argc++] = NM_FLAGS;
1896 nm_argv[argc++] = prog_name;
1897 nm_argv[argc++] = (char *)0;
1899 if (pipe (pipe_fd) < 0)
1900 fatal_perror ("pipe");
1902 inf = fdopen (pipe_fd[0], "r");
1903 if (inf == (FILE *)0)
1904 fatal_perror ("fdopen");
1906 /* Trace if needed. */
1912 for (p_argv = &nm_argv[0]; (str = *p_argv) != (char *)0; p_argv++)
1913 fprintf (stderr, " %s", str);
1915 fprintf (stderr, "\n");
1921 /* Spawn child nm on pipe */
1926 fatal_perror ("fork");
1928 fatal_perror ("vfork");
1932 if (pid == 0) /* child context */
1935 if (dup2 (pipe_fd[1], 1) < 0)
1936 fatal_perror ("dup2 (%d, 1)", pipe_fd[1]);
1938 if (close (pipe_fd[0]) < 0)
1939 fatal_perror ("close (%d)", pipe_fd[0]);
1941 if (close (pipe_fd[1]) < 0)
1942 fatal_perror ("close (%d)", pipe_fd[1]);
1944 execv (nm_file_name, nm_argv);
1945 fatal_perror ("executing %s", nm_file_name);
1948 /* Parent context from here on. */
1949 int_handler = (void (*) ())signal (SIGINT, SIG_IGN);
1951 quit_handler = (void (*) ())signal (SIGQUIT, SIG_IGN);
1954 if (close (pipe_fd[1]) < 0)
1955 fatal_perror ("close (%d)", pipe_fd[1]);
1958 fprintf (stderr, "\nnm output with constructors/destructors.\n");
1960 /* Read each line of nm output. */
1961 while (fgets (buf, sizeof buf, inf) != (char *)0)
1966 /* If it contains a constructor or destructor name, add the name
1967 to the appropriate list. */
1969 for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++)
1970 if (ch == ' ' && p[1] == 'U' && p[2] == ' ')
1977 /* Find the end of the symbol name.
1978 Don't include `|', because Encore nm can tack that on the end. */
1979 for (end = p; (ch2 = *end) != '\0' && !isspace (ch2) && ch2 != '|';
1985 switch (is_ctor_dtor (name))
1988 if (which_pass != PASS_LIB)
1989 add_to_list (&constructors, name);
1993 if (which_pass != PASS_LIB)
1994 add_to_list (&destructors, name);
1998 if (which_pass != PASS_LIB)
1999 fatal ("init function found in object %s", prog_name);
2000 #ifndef LD_INIT_SWITCH
2001 add_to_list (&constructors, name);
2006 if (which_pass != PASS_LIB)
2007 fatal ("fini function found in object %s", prog_name);
2008 #ifndef LD_FINI_SWITCH
2009 add_to_list (&destructors, name);
2013 default: /* not a constructor or destructor */
2018 fprintf (stderr, "\t%s\n", buf);
2022 fprintf (stderr, "\n");
2024 if (fclose (inf) != 0)
2025 fatal_perror ("fclose of pipe");
2027 do_wait (nm_file_name);
2029 signal (SIGINT, int_handler);
2031 signal (SIGQUIT, quit_handler);
2035 #if SUNOS4_SHARED_LIBRARIES
2037 /* Routines to scan the SunOS 4 _DYNAMIC structure to find shared libraries
2038 that the output file depends upon and their initialization/finalization
2039 routines, if any. */
2044 #include <sys/mman.h>
2045 #include <sys/param.h>
2046 #include <sys/unistd.h>
2047 #include <sys/dir.h>
2049 /* pointers to the object file */
2050 unsigned object; /* address of memory mapped file */
2051 unsigned objsize; /* size of memory mapped to file */
2052 char * code; /* pointer to code segment */
2053 char * data; /* pointer to data segment */
2054 struct nlist *symtab; /* pointer to symbol table */
2055 struct link_dynamic *ld;
2056 struct link_dynamic_2 *ld_2;
2057 struct head libraries;
2059 /* Map the file indicated by NAME into memory and store its address. */
2067 if ((fp = open (name, O_RDONLY)) == -1)
2068 fatal ("unable to open file '%s'", name);
2069 if (fstat (fp, &s) == -1)
2070 fatal ("unable to stat file '%s'", name);
2072 objsize = s.st_size;
2073 object = (unsigned) mmap (0, objsize, PROT_READ|PROT_WRITE, MAP_PRIVATE,
2076 fatal ("unable to mmap file '%s'", name);
2081 /* Helpers for locatelib. */
2083 static char *libname;
2089 return (strncmp (libname, d->d_name, strlen (libname)) == 0);
2092 /* If one file has an additional numeric extension past LIBNAME, then put
2093 that one first in the sort. If both files have additional numeric
2094 extensions, then put the one with the higher number first in the sort.
2096 We must verify that the extension is numeric, because Sun saves the
2097 original versions of patched libraries with a .FCS extension. Files with
2098 invalid extensions must go last in the sort, so that they won't be used. */
2102 struct direct **d1, **d2;
2104 int i1, i2 = strlen (libname);
2105 char *e1 = (*d1)->d_name + i2;
2106 char *e2 = (*d2)->d_name + i2;
2108 while (*e1 && *e2 && *e1 == '.' && *e2 == '.'
2109 && e1[1] && isdigit (e1[1]) && e2[1] && isdigit (e2[1]))
2113 i1 = strtol (e1, &e1, 10);
2114 i2 = strtol (e2, &e2, 10);
2121 /* It has a valid numeric extension, prefer this one. */
2122 if (*e1 == '.' && e1[1] && isdigit (e1[1]))
2124 /* It has a invalid numeric extension, must prefer the other one. */
2130 /* It has a valid numeric extension, prefer this one. */
2131 if (*e2 == '.' && e2[1] && isdigit (e2[1]))
2133 /* It has a invalid numeric extension, must prefer the other one. */
2141 /* Given the name NAME of a dynamic dependency, find its pathname and add
2142 it to the list of libraries. */
2150 char buf[MAXPATHLEN];
2158 /* counting elements in array, need 1 extra for null */
2160 ld_rules = (char *) (ld_2->ld_rules + code);
2164 for (; *ld_rules != 0; ld_rules++)
2165 if (*ld_rules == ':')
2167 ld_rules = (char *) (ld_2->ld_rules + code);
2168 ldr = (char *) malloc (strlen (ld_rules) + 1);
2169 strcpy (ldr, ld_rules);
2171 p = getenv ("LD_LIBRARY_PATH");
2176 for (q = p ; *q != 0; q++)
2179 q = (char *) malloc (strlen (p) + 1);
2182 l = (char **) malloc ((cnt + 3) * sizeof (char *));
2187 for (; *ldr != 0; ldr++)
2197 for (; *q != 0; q++)
2204 /* built in directories are /lib, /usr/lib, and /usr/local/lib */
2207 *pp++ = "/usr/local/lib";
2211 for (pp = l; *pp != 0 ; pp++)
2213 struct direct **namelist;
2215 if ((entries = scandir (*pp, &namelist, libselect, libcompare)) > 0)
2217 sprintf (buf, "%s/%s", *pp, namelist[entries - 1]->d_name);
2218 add_to_list (&libraries, buf);
2220 fprintf (stderr, "%s\n", buf);
2227 fprintf (stderr, "not found\n");
2229 fatal ("dynamic dependency %s not found", name);
2233 /* Scan the _DYNAMIC structure of the output file to find shared libraries
2234 that it depends upon and any constructors or destructors they contain. */
2237 scan_libraries (prog_name)
2240 struct exec *header;
2242 struct link_object *lo;
2243 char buff[MAXPATHLEN];
2246 mapfile (prog_name);
2247 header = (struct exec *)object;
2248 if (N_BADMAG (*header))
2249 fatal ("bad magic number in file '%s'", prog_name);
2250 if (header->a_dynamic == 0)
2253 code = (char *) (N_TXTOFF (*header) + (long) header);
2254 data = (char *) (N_DATOFF (*header) + (long) header);
2255 symtab = (struct nlist *) (N_SYMOFF (*header) + (long) header);
2257 if (header->a_magic == ZMAGIC && header->a_entry == 0x20)
2260 ld = (struct link_dynamic *) (symtab->n_value + code);
2266 ld = (struct link_dynamic *) data;
2271 fprintf (stderr, "dynamic dependencies.\n");
2273 ld_2 = (struct link_dynamic_2 *) ((long) ld->ld_un.ld_2 + (long)base);
2274 for (lo = (struct link_object *) ld_2->ld_need; lo;
2275 lo = (struct link_object *) lo->lo_next)
2278 lo = (struct link_object *) ((long) lo + code);
2279 name = (char *) (code + lo->lo_name);
2283 fprintf (stderr, "\t-l%s.%d => ", name, lo->lo_major);
2284 sprintf (buff, "lib%s.so.%d.%d", name, lo->lo_major, lo->lo_minor);
2290 fprintf (stderr, "\t%s\n", name);
2291 add_to_list (&libraries, name);
2296 fprintf (stderr, "\n");
2298 /* now iterate through the library list adding their symbols to
2300 for (list = libraries.first; list; list = list->next)
2301 scan_prog_file (list->name, PASS_LIB);
2304 #else /* SUNOS4_SHARED_LIBRARIES */
2307 /* Use the List Dynamic Dependencies program to find shared libraries that
2308 the output file depends upon and their initialization/finalization
2309 routines, if any. */
2312 scan_libraries (prog_name)
2315 static struct head libraries; /* list of shared libraries found */
2317 void (*int_handler) ();
2318 void (*quit_handler) ();
2326 /* If we don't have an `ldd', complain. */
2327 if (ldd_file_name == 0)
2329 error ("cannot find `ldd'");
2333 ldd_argv[argc++] = ldd_file_name;
2334 ldd_argv[argc++] = prog_name;
2335 ldd_argv[argc++] = (char *) 0;
2337 if (pipe (pipe_fd) < 0)
2338 fatal_perror ("pipe");
2340 inf = fdopen (pipe_fd[0], "r");
2341 if (inf == (FILE *) 0)
2342 fatal_perror ("fdopen");
2344 /* Trace if needed. */
2350 for (p_argv = &ldd_argv[0]; (str = *p_argv) != (char *) 0; p_argv++)
2351 fprintf (stderr, " %s", str);
2353 fprintf (stderr, "\n");
2359 /* Spawn child ldd on pipe */
2364 fatal_perror ("fork");
2366 fatal_perror ("vfork");
2370 if (pid == 0) /* child context */
2373 if (dup2 (pipe_fd[1], 1) < 0)
2374 fatal_perror ("dup2 (%d, 1)", pipe_fd[1]);
2376 if (close (pipe_fd[0]) < 0)
2377 fatal_perror ("close (%d)", pipe_fd[0]);
2379 if (close (pipe_fd[1]) < 0)
2380 fatal_perror ("close (%d)", pipe_fd[1]);
2382 execv (ldd_file_name, ldd_argv);
2383 fatal_perror ("executing %s", ldd_file_name);
2386 /* Parent context from here on. */
2387 int_handler = (void (*) ()) signal (SIGINT, SIG_IGN);
2389 quit_handler = (void (*) ()) signal (SIGQUIT, SIG_IGN);
2392 if (close (pipe_fd[1]) < 0)
2393 fatal_perror ("close (%d)", pipe_fd[1]);
2396 fprintf (stderr, "\nldd output with constructors/destructors.\n");
2398 /* Read each line of ldd output. */
2399 while (fgets (buf, sizeof buf, inf) != (char *) 0)
2402 char *name, *end, *p = buf;
2404 /* Extract names of libraries and add to list. */
2405 PARSE_LDD_OUTPUT (p);
2410 if (strncmp (name, "not found", sizeof ("not found") - 1) == 0)
2411 fatal ("dynamic dependency %s not found", buf);
2413 /* Find the end of the symbol name. */
2415 (ch2 = *end) != '\0' && ch2 != '\n' && !isspace (ch2) && ch2 != '|';
2420 if (access (name, R_OK) == 0)
2421 add_to_list (&libraries, name);
2423 fatal ("unable to open dynamic dependency '%s'", buf);
2426 fprintf (stderr, "\t%s\n", buf);
2429 fprintf (stderr, "\n");
2431 if (fclose (inf) != 0)
2432 fatal_perror ("fclose of pipe");
2434 do_wait (ldd_file_name);
2436 signal (SIGINT, int_handler);
2438 signal (SIGQUIT, quit_handler);
2441 /* now iterate through the library list adding their symbols to
2443 for (list = libraries.first; list; list = list->next)
2444 scan_prog_file (list->name, PASS_LIB);
2447 #endif /* LDD_SUFFIX */
2448 #endif /* SUNOS4_SHARED_LIBRARIES */
2450 #endif /* OBJECT_FORMAT_NONE */
2454 * COFF specific stuff.
2457 #ifdef OBJECT_FORMAT_COFF
2459 #if defined(EXTENDED_COFF)
2460 # define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax)
2461 # define GCC_SYMENT SYMR
2462 # define GCC_OK_SYMBOL(X) ((X).st == stProc && (X).sc == scText)
2463 # define GCC_SYMINC(X) (1)
2464 # define GCC_SYMZERO(X) (SYMHEADER(X).isymMax)
2465 # define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0)
2467 # define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms)
2468 # define GCC_SYMENT SYMENT
2469 # define GCC_OK_SYMBOL(X) \
2470 (((X).n_sclass == C_EXT) && \
2471 (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) || \
2472 ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))
2473 # define GCC_SYMINC(X) ((X).n_numaux+1)
2474 # define GCC_SYMZERO(X) 0
2475 # define GCC_CHECK_HDR(X) (1)
2478 extern char *ldgetname ();
2480 /* COFF version to scan the name list of the loaded program for
2481 the symbols g++ uses for static constructors and destructors.
2483 The constructor table begins at __CTOR_LIST__ and contains a count
2484 of the number of pointers (or -1 if the constructors are built in a
2485 separate section by the linker), followed by the pointers to the
2486 constructor functions, terminated with a null pointer. The
2487 destructor table has the same format, and begins at __DTOR_LIST__. */
2490 scan_prog_file (prog_name, which_pass)
2492 enum pass which_pass;
2494 LDFILE *ldptr = NULL;
2495 int sym_index, sym_count;
2497 if (which_pass != PASS_FIRST && which_pass != PASS_OBJ)
2500 if ((ldptr = ldopen (prog_name, ldptr)) == NULL)
2501 fatal ("%s: can't open as COFF file", prog_name);
2503 if (!MY_ISCOFF (HEADER (ldptr).f_magic))
2504 fatal ("%s: not a COFF file", prog_name);
2506 if (GCC_CHECK_HDR (ldptr))
2508 sym_count = GCC_SYMBOLS (ldptr);
2509 sym_index = GCC_SYMZERO (ldptr);
2510 while (sym_index < sym_count)
2514 if (ldtbread (ldptr, sym_index, &symbol) <= 0)
2516 sym_index += GCC_SYMINC (symbol);
2518 if (GCC_OK_SYMBOL (symbol))
2522 if ((name = ldgetname (ldptr, &symbol)) == NULL)
2523 continue; /* should never happen */
2525 #ifdef XCOFF_DEBUGGING_INFO
2526 /* All AIX function names have a duplicate entry beginning
2532 switch (is_ctor_dtor (name))
2535 add_to_list (&constructors, name);
2536 if (which_pass == PASS_OBJ)
2537 add_to_list (&exports, name);
2541 add_to_list (&destructors, name);
2542 if (which_pass == PASS_OBJ)
2543 add_to_list (&exports, name);
2546 default: /* not a constructor or destructor */
2550 #if !defined(EXTENDED_COFF)
2552 fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n",
2553 symbol.n_scnum, symbol.n_sclass,
2554 (symbol.n_type ? "0" : ""), symbol.n_type,
2558 fprintf (stderr, "\tiss = %5d, value = %5d, index = %5d, name = %s\n",
2559 symbol.iss, symbol.value, symbol.index, name);
2565 (void) ldclose(ldptr);
2568 #ifdef XCOFF_SCAN_LIBS
2569 /* Scan imported AIX libraries for GCC static ctors and dtors.
2570 FIXME: it is possible to link an executable without the actual import
2571 library by using an "import file" - a text file listing symbols
2572 exported by a library. To support this, we would have to scan
2573 import files as well as actual shared binaries to find GCC ctors.
2574 TODO: use memory mapping instead of 'ld' routines, files are already
2575 memory mapped, but we could eliminate the extra in-memory copies.
2576 Is it worth the effort? */
2579 scan_libraries (prog_name)
2584 static struct path_prefix libpath; /* we should only do this once */
2586 if ((ldptr = ldopen (prog_name, ldptr)) == NULL)
2587 fatal ("%s: can't open as COFF file", prog_name);
2589 if (!MY_ISCOFF (HEADER (ldptr).f_magic))
2590 fatal ("%s: not a COFF file", prog_name);
2592 /* find and read loader section */
2593 if (ldnshread (ldptr, _LOADER, &ldsh))
2599 FSEEK (ldptr, ldsh.s_scnptr, BEGINNING);
2600 FREAD (&ldh, sizeof (ldh), 1, ldptr);
2601 /* read import library list */
2602 impbuf = alloca (ldh.l_istlen);
2603 FSEEK (ldptr, ldh.l_impoff + ldsh.s_scnptr, BEGINNING);
2604 FREAD (impbuf, ldh.l_istlen, 1, ldptr);
2607 fprintf (stderr, "LIBPATH=%s\n", impbuf);
2608 prefix_from_string (impbuf, &libpath);
2610 /* skip LIBPATH and empty base and member fields */
2611 impbuf += strlen (impbuf) + 3;
2612 for (entry = 1; entry < ldh.l_nimpid; ++entry)
2614 char *impath = impbuf;
2615 char *implib = impath + strlen (impath) + 1;
2616 char *impmem = implib + strlen (implib) + 1;
2617 char *soname = NULL;
2620 LDFILE *libptr = NULL;
2621 struct prefix_list *pl;
2624 impbuf = impmem + strlen (impmem) + 1;
2626 fprintf (stderr, "PATH+BASE=%s%s\n", impath, implib);
2627 /* Skip AIX kernel exports */
2628 if (*impath == '/' && *(impath+1) == '\0'
2629 && strcmp (implib, "unix") == 0)
2631 pathlen = strlen (impath);
2632 trial = alloca (MAX (pathlen + 1, libpath.max_len)
2633 + strlen (implib) + 1);
2636 strcpy (trial, impath);
2637 if (impath[pathlen - 1] != '/')
2638 trial[pathlen++] = '/';
2639 strcpy (trial + pathlen, implib);
2640 if (access (trial, R_OK) == 0)
2644 for (pl = libpath.plist; pl; pl = pl->next)
2646 strcpy (trial, pl->prefix);
2647 strcat (trial, implib);
2648 if (access (trial, R_OK) == 0)
2656 fatal ("%s: library not found", implib);
2659 fprintf (stderr, "%s (%s)\n", soname, impmem);
2661 fprintf (stderr, "%s\n", soname);
2665 /* scan imported shared objects for GCC GLOBAL ctors */
2667 if ((libptr = ldopen (soname, libptr)) == NULL)
2668 fatal ("%s: can't open import library", soname);
2669 if (TYPE (libptr) == ARTYPE)
2673 fatal ("%s: no archive member specified", soname);
2674 ldahread (libptr, &ah);
2675 if (strcmp (ah.ar_name, impmem))
2678 type = HEADER (libptr).f_magic;
2679 if (HEADER (libptr).f_flags & F_SHROBJ)
2686 if (!ldnshread (libptr, _LOADER, &soldsh))
2687 fatal ("%s: not an import library", soname);
2688 FSEEK (libptr, soldsh.s_scnptr, BEGINNING);
2689 if (FREAD (&soldh, sizeof (soldh), 1, libptr) != 1)
2690 fatal ("%s: can't read loader section", soname);
2691 /*fprintf (stderr, "\tscanning %s\n", soname);*/
2692 symcnt = soldh.l_nsyms;
2693 lsyms = (LDSYM*) alloca (symcnt * sizeof (*lsyms));
2694 symcnt = FREAD (lsyms, sizeof (*lsyms), symcnt, libptr);
2695 ldstrings = alloca (soldh.l_stlen);
2696 FSEEK (libptr, soldsh.s_scnptr+soldh.l_stoff, BEGINNING);
2697 FREAD (ldstrings, soldh.l_stlen, 1, libptr);
2698 for (i = 0; i < symcnt; ++i)
2700 LDSYM *l = lsyms + i;
2701 if (LDR_EXPORT (*l))
2705 expname = l->l_name;
2706 else if (l->l_offset < soldh.l_stlen)
2707 expname = ldstrings + l->l_offset;
2708 switch (is_ctor_dtor (expname))
2712 fprintf (stderr, "\t%s\n", expname);
2713 add_to_list (&constructors, expname);
2717 add_to_list (&destructors, expname);
2720 default: /* not a constructor or destructor */
2727 fprintf (stderr, "%s: type = %04X flags = %04X\n",
2728 ah.ar_name, type, HEADER (libptr).f_flags);
2730 while (ldclose (libptr) == FAILURE);
2731 /* printf (stderr, "closed %s\n", soname); */
2735 #endif /* XCOFF_SCAN_LIBS */
2737 #endif /* OBJECT_FORMAT_COFF */
2741 * OSF/rose specific stuff.
2744 #ifdef OBJECT_FORMAT_ROSE
2746 /* Union of the various load commands */
2748 typedef union load_union
2750 ldc_header_t hdr; /* common header */
2751 load_cmd_map_command_t map; /* map indexing other load cmds */
2752 interpreter_command_t iprtr; /* interpreter pathname */
2753 strings_command_t str; /* load commands strings section */
2754 region_command_t region; /* region load command */
2755 reloc_command_t reloc; /* relocation section */
2756 package_command_t pkg; /* package load command */
2757 symbols_command_t sym; /* symbol sections */
2758 entry_command_t ent; /* program start section */
2759 gen_info_command_t info; /* object information */
2760 func_table_command_t func; /* function constructors/destructors */
2763 /* Structure to point to load command and data section in memory. */
2765 typedef struct load_all
2767 load_union_t *load; /* load command */
2768 char *section; /* pointer to section */
2771 /* Structure to contain information about a file mapped into memory. */
2775 char *start; /* start of map */
2776 char *name; /* filename */
2777 long size; /* size of the file */
2778 long rounded_size; /* size rounded to page boundary */
2779 int fd; /* file descriptor */
2780 int rw; /* != 0 if opened read/write */
2781 int use_mmap; /* != 0 if mmap'ed */
2784 extern int decode_mach_o_hdr ();
2785 extern int encode_mach_o_hdr ();
2787 static void add_func_table PROTO((mo_header_t *, load_all_t *,
2788 symbol_info_t *, int));
2789 static void print_header PROTO((mo_header_t *));
2790 static void print_load_command PROTO((load_union_t*, size_t, int));
2791 static void bad_header PROTO((int));
2792 static struct file_info *read_file PROTO((char *, int, int));
2793 static void end_file PROTO((struct file_info *));
2795 /* OSF/rose specific version to scan the name list of the loaded
2796 program for the symbols g++ uses for static constructors and
2799 The constructor table begins at __CTOR_LIST__ and contains a count
2800 of the number of pointers (or -1 if the constructors are built in a
2801 separate section by the linker), followed by the pointers to the
2802 constructor functions, terminated with a null pointer. The
2803 destructor table has the same format, and begins at __DTOR_LIST__. */
2806 scan_prog_file (prog_name, which_pass)
2808 enum pass which_pass;
2812 load_all_t *load_array;
2813 load_all_t *load_end;
2814 load_all_t *load_cmd;
2815 int symbol_load_cmds;
2821 struct file_info *obj_file;
2823 mo_lcid_t cmd_strings = -1;
2824 symbol_info_t *main_sym = 0;
2825 int rw = (which_pass != PASS_FIRST);
2827 prog_fd = open (prog_name, (rw) ? O_RDWR : O_RDONLY);
2829 fatal_perror ("can't read %s", prog_name);
2831 obj_file = read_file (prog_name, prog_fd, rw);
2832 obj = obj_file->start;
2834 status = decode_mach_o_hdr (obj, MO_SIZEOF_RAW_HDR, MOH_HEADER_VERSION, &hdr);
2835 if (status != MO_HDR_CONV_SUCCESS)
2836 bad_header (status);
2839 /* Do some basic sanity checks. Note we explicitly use the big endian magic number,
2840 since the hardware will automatically swap bytes for us on loading little endian
2843 #ifndef CROSS_COMPILE
2844 if (hdr.moh_magic != MOH_MAGIC_MSB
2845 || hdr.moh_header_version != MOH_HEADER_VERSION
2846 || hdr.moh_byte_order != OUR_BYTE_ORDER
2847 || hdr.moh_data_rep_id != OUR_DATA_REP_ID
2848 || hdr.moh_cpu_type != OUR_CPU_TYPE
2849 || hdr.moh_cpu_subtype != OUR_CPU_SUBTYPE
2850 || hdr.moh_vendor_type != OUR_VENDOR_TYPE)
2852 fatal ("incompatibilities between object file & expected values");
2857 print_header (&hdr);
2859 offset = hdr.moh_first_cmd_off;
2860 load_end = load_array
2861 = (load_all_t *) xcalloc (sizeof (load_all_t), hdr.moh_n_load_cmds + 2);
2863 /* Build array of load commands, calculating the offsets */
2864 for (i = 0; i < hdr.moh_n_load_cmds; i++)
2866 load_union_t *load_hdr; /* load command header */
2868 load_cmd = load_end++;
2869 load_hdr = (load_union_t *) (obj + offset);
2871 /* If modifying the program file, copy the header. */
2874 load_union_t *ptr = (load_union_t *) xmalloc (load_hdr->hdr.ldci_cmd_size);
2875 bcopy ((char *)load_hdr, (char *)ptr, load_hdr->hdr.ldci_cmd_size);
2878 /* null out old command map, because we will rewrite at the end. */
2879 if (ptr->hdr.ldci_cmd_type == LDC_CMD_MAP)
2881 cmd_strings = ptr->map.lcm_ld_cmd_strings;
2882 ptr->hdr.ldci_cmd_type = LDC_UNDEFINED;
2886 load_cmd->load = load_hdr;
2887 if (load_hdr->hdr.ldci_section_off > 0)
2888 load_cmd->section = obj + load_hdr->hdr.ldci_section_off;
2891 print_load_command (load_hdr, offset, i);
2893 offset += load_hdr->hdr.ldci_cmd_size;
2896 /* If the last command is the load command map and is not undefined,
2897 decrement the count of load commands. */
2898 if (rw && load_end[-1].load->hdr.ldci_cmd_type == LDC_UNDEFINED)
2901 hdr.moh_n_load_cmds--;
2904 /* Go through and process each symbol table section. */
2905 symbol_load_cmds = 0;
2906 for (load_cmd = load_array; load_cmd < load_end; load_cmd++)
2908 load_union_t *load_hdr = load_cmd->load;
2910 if (load_hdr->hdr.ldci_cmd_type == LDC_SYMBOLS)
2916 char *kind = "unknown";
2918 switch (load_hdr->sym.symc_kind)
2920 case SYMC_IMPORTS: kind = "imports"; break;
2921 case SYMC_DEFINED_SYMBOLS: kind = "defined"; break;
2922 case SYMC_STABS: kind = "stabs"; break;
2925 fprintf (stderr, "\nProcessing symbol table #%d, offset = 0x%.8lx, kind = %s\n",
2926 symbol_load_cmds, load_hdr->hdr.ldci_section_off, kind);
2929 if (load_hdr->sym.symc_kind != SYMC_DEFINED_SYMBOLS)
2932 str_sect = load_array[load_hdr->sym.symc_strings_section].section;
2933 if (str_sect == (char *)0)
2934 fatal ("string section missing");
2936 if (load_cmd->section == (char *)0)
2937 fatal ("section pointer missing");
2939 num_syms = load_hdr->sym.symc_nentries;
2940 for (i = 0; i < num_syms; i++)
2942 symbol_info_t *sym = ((symbol_info_t *) load_cmd->section) + i;
2943 char *name = sym->si_name.symbol_name + str_sect;
2950 char *n = name + strlen (name) - strlen (NAME__MAIN);
2952 if ((n - name) < 0 || strcmp (n, NAME__MAIN))
2962 switch (is_ctor_dtor (name))
2965 add_to_list (&constructors, name);
2969 add_to_list (&destructors, name);
2972 default: /* not a constructor or destructor */
2978 fprintf (stderr, "\ttype = 0x%.4x, sc = 0x%.2x, flags = 0x%.8x, name = %.30s\n",
2979 sym->si_type, sym->si_sc_type, sym->si_flags, name);
2984 if (symbol_load_cmds == 0)
2985 fatal ("no symbol table found");
2987 /* Update the program file now, rewrite header and load commands. At present,
2988 we assume that there is enough space after the last load command to insert
2989 one more. Since the first section written out is page aligned, and the
2990 number of load commands is small, this is ok for the present. */
2994 load_union_t *load_map;
2997 if (cmd_strings == -1)
2998 fatal ("no cmd_strings found");
3000 /* Add __main to initializer list.
3001 If we are building a program instead of a shared library, don't
3002 do anything, since in the current version, you cannot do mallocs
3003 and such in the constructors. */
3005 if (main_sym != (symbol_info_t *)0
3006 && ((hdr.moh_flags & MOH_EXECABLE_F) == 0))
3007 add_func_table (&hdr, load_array, main_sym, FNTC_INITIALIZATION);
3010 fprintf (stderr, "\nUpdating header and load commands.\n\n");
3012 hdr.moh_n_load_cmds++;
3013 size = sizeof (load_cmd_map_command_t) + (sizeof (mo_offset_t) * (hdr.moh_n_load_cmds - 1));
3015 /* Create new load command map. */
3017 fprintf (stderr, "load command map, %d cmds, new size %ld.\n",
3018 (int)hdr.moh_n_load_cmds, (long)size);
3020 load_map = (load_union_t *) xcalloc (1, size);
3021 load_map->map.ldc_header.ldci_cmd_type = LDC_CMD_MAP;
3022 load_map->map.ldc_header.ldci_cmd_size = size;
3023 load_map->map.lcm_ld_cmd_strings = cmd_strings;
3024 load_map->map.lcm_nentries = hdr.moh_n_load_cmds;
3025 load_array[hdr.moh_n_load_cmds-1].load = load_map;
3027 offset = hdr.moh_first_cmd_off;
3028 for (i = 0; i < hdr.moh_n_load_cmds; i++)
3030 load_map->map.lcm_map[i] = offset;
3031 if (load_array[i].load->hdr.ldci_cmd_type == LDC_CMD_MAP)
3032 hdr.moh_load_map_cmd_off = offset;
3034 offset += load_array[i].load->hdr.ldci_cmd_size;
3037 hdr.moh_sizeofcmds = offset - MO_SIZEOF_RAW_HDR;
3040 print_header (&hdr);
3043 status = encode_mach_o_hdr (&hdr, obj, MO_SIZEOF_RAW_HDR);
3044 if (status != MO_HDR_CONV_SUCCESS)
3045 bad_header (status);
3048 fprintf (stderr, "writing load commands.\n\n");
3050 /* Write load commands */
3051 offset = hdr.moh_first_cmd_off;
3052 for (i = 0; i < hdr.moh_n_load_cmds; i++)
3054 load_union_t *load_hdr = load_array[i].load;
3055 size_t size = load_hdr->hdr.ldci_cmd_size;
3058 print_load_command (load_hdr, offset, i);
3060 bcopy ((char *)load_hdr, (char *)(obj + offset), size);
3065 end_file (obj_file);
3067 if (close (prog_fd))
3068 fatal_perror ("closing %s", prog_name);
3071 fprintf (stderr, "\n");
3075 /* Add a function table to the load commands to call a function
3076 on initiation or termination of the process. */
3079 add_func_table (hdr_p, load_array, sym, type)
3080 mo_header_t *hdr_p; /* pointer to global header */
3081 load_all_t *load_array; /* array of ptrs to load cmds */
3082 symbol_info_t *sym; /* pointer to symbol entry */
3083 int type; /* fntc_type value */
3085 /* Add a new load command. */
3086 int num_cmds = ++hdr_p->moh_n_load_cmds;
3087 int load_index = num_cmds - 1;
3088 size_t size = sizeof (func_table_command_t) + sizeof (mo_addr_t);
3089 load_union_t *ptr = xcalloc (1, size);
3090 load_all_t *load_cmd;
3093 /* Set the unresolved address bit in the header to force the loader to be
3094 used, since kernel exec does not call the initialization functions. */
3095 hdr_p->moh_flags |= MOH_UNRESOLVED_F;
3097 load_cmd = &load_array[load_index];
3098 load_cmd->load = ptr;
3099 load_cmd->section = (char *)0;
3101 /* Fill in func table load command. */
3102 ptr->func.ldc_header.ldci_cmd_type = LDC_FUNC_TABLE;
3103 ptr->func.ldc_header.ldci_cmd_size = size;
3104 ptr->func.ldc_header.ldci_section_off = 0;
3105 ptr->func.ldc_header.ldci_section_len = 0;
3106 ptr->func.fntc_type = type;
3107 ptr->func.fntc_nentries = 1;
3109 /* copy address, turn it from abs. address to (region,offset) if necessary. */
3110 /* Is the symbol already expressed as (region, offset)? */
3111 if ((sym->si_flags & SI_ABSOLUTE_VALUE_F) == 0)
3113 ptr->func.fntc_entry_loc[i].adr_lcid = sym->si_value.def_val.adr_lcid;
3114 ptr->func.fntc_entry_loc[i].adr_sctoff = sym->si_value.def_val.adr_sctoff;
3117 /* If not, figure out which region it's in. */
3120 mo_vm_addr_t addr = sym->si_value.abs_val;
3123 for (i = 0; i < load_index; i++)
3125 if (load_array[i].load->hdr.ldci_cmd_type == LDC_REGION)
3127 region_command_t *region_ptr = &load_array[i].load->region;
3129 if ((region_ptr->regc_flags & REG_ABS_ADDR_F) != 0
3130 && addr >= region_ptr->regc_addr.vm_addr
3131 && addr <= region_ptr->regc_addr.vm_addr + region_ptr->regc_vm_size)
3133 ptr->func.fntc_entry_loc[0].adr_lcid = i;
3134 ptr->func.fntc_entry_loc[0].adr_sctoff = addr - region_ptr->regc_addr.vm_addr;
3142 fatal ("could not convert 0x%l.8x into a region", addr);
3147 "%s function, region %d, offset = %ld (0x%.8lx)\n",
3148 (type == FNTC_INITIALIZATION) ? "init" : "term",
3149 (int)ptr->func.fntc_entry_loc[i].adr_lcid,
3150 (long)ptr->func.fntc_entry_loc[i].adr_sctoff,
3151 (long)ptr->func.fntc_entry_loc[i].adr_sctoff);
3156 /* Print the global header for an OSF/rose object. */
3159 print_header (hdr_ptr)
3160 mo_header_t *hdr_ptr;
3162 fprintf (stderr, "\nglobal header:\n");
3163 fprintf (stderr, "\tmoh_magic = 0x%.8lx\n", hdr_ptr->moh_magic);
3164 fprintf (stderr, "\tmoh_major_version = %d\n", (int)hdr_ptr->moh_major_version);
3165 fprintf (stderr, "\tmoh_minor_version = %d\n", (int)hdr_ptr->moh_minor_version);
3166 fprintf (stderr, "\tmoh_header_version = %d\n", (int)hdr_ptr->moh_header_version);
3167 fprintf (stderr, "\tmoh_max_page_size = %d\n", (int)hdr_ptr->moh_max_page_size);
3168 fprintf (stderr, "\tmoh_byte_order = %d\n", (int)hdr_ptr->moh_byte_order);
3169 fprintf (stderr, "\tmoh_data_rep_id = %d\n", (int)hdr_ptr->moh_data_rep_id);
3170 fprintf (stderr, "\tmoh_cpu_type = %d\n", (int)hdr_ptr->moh_cpu_type);
3171 fprintf (stderr, "\tmoh_cpu_subtype = %d\n", (int)hdr_ptr->moh_cpu_subtype);
3172 fprintf (stderr, "\tmoh_vendor_type = %d\n", (int)hdr_ptr->moh_vendor_type);
3173 fprintf (stderr, "\tmoh_load_map_cmd_off = %d\n", (int)hdr_ptr->moh_load_map_cmd_off);
3174 fprintf (stderr, "\tmoh_first_cmd_off = %d\n", (int)hdr_ptr->moh_first_cmd_off);
3175 fprintf (stderr, "\tmoh_sizeofcmds = %d\n", (int)hdr_ptr->moh_sizeofcmds);
3176 fprintf (stderr, "\tmon_n_load_cmds = %d\n", (int)hdr_ptr->moh_n_load_cmds);
3177 fprintf (stderr, "\tmoh_flags = 0x%.8lx", (long)hdr_ptr->moh_flags);
3179 if (hdr_ptr->moh_flags & MOH_RELOCATABLE_F)
3180 fprintf (stderr, ", relocatable");
3182 if (hdr_ptr->moh_flags & MOH_LINKABLE_F)
3183 fprintf (stderr, ", linkable");
3185 if (hdr_ptr->moh_flags & MOH_EXECABLE_F)
3186 fprintf (stderr, ", execable");
3188 if (hdr_ptr->moh_flags & MOH_EXECUTABLE_F)
3189 fprintf (stderr, ", executable");
3191 if (hdr_ptr->moh_flags & MOH_UNRESOLVED_F)
3192 fprintf (stderr, ", unresolved");
3194 fprintf (stderr, "\n\n");
3199 /* Print a short summary of a load command. */
3202 print_load_command (load_hdr, offset, number)
3203 load_union_t *load_hdr;
3207 mo_long_t type = load_hdr->hdr.ldci_cmd_type;
3208 char *type_str = (char *)0;
3212 case LDC_UNDEFINED: type_str = "UNDEFINED"; break;
3213 case LDC_CMD_MAP: type_str = "CMD_MAP"; break;
3214 case LDC_INTERPRETER: type_str = "INTERPRETER"; break;
3215 case LDC_STRINGS: type_str = "STRINGS"; break;
3216 case LDC_REGION: type_str = "REGION"; break;
3217 case LDC_RELOC: type_str = "RELOC"; break;
3218 case LDC_PACKAGE: type_str = "PACKAGE"; break;
3219 case LDC_SYMBOLS: type_str = "SYMBOLS"; break;
3220 case LDC_ENTRY: type_str = "ENTRY"; break;
3221 case LDC_FUNC_TABLE: type_str = "FUNC_TABLE"; break;
3222 case LDC_GEN_INFO: type_str = "GEN_INFO"; break;
3226 "cmd %2d, sz: 0x%.2lx, coff: 0x%.3lx, doff: 0x%.6lx, dlen: 0x%.6lx",
3228 (long) load_hdr->hdr.ldci_cmd_size,
3230 (long) load_hdr->hdr.ldci_section_off,
3231 (long) load_hdr->hdr.ldci_section_len);
3233 if (type_str == (char *)0)
3234 fprintf (stderr, ", ty: unknown (%ld)\n", (long) type);
3236 else if (type != LDC_REGION)
3237 fprintf (stderr, ", ty: %s\n", type_str);
3242 switch (load_hdr->region.regc_usage_type)
3244 case REG_TEXT_T: region = ", .text"; break;
3245 case REG_DATA_T: region = ", .data"; break;
3246 case REG_BSS_T: region = ", .bss"; break;
3247 case REG_GLUE_T: region = ", .glue"; break;
3248 #if defined (REG_RDATA_T) && defined (REG_SDATA_T) && defined (REG_SBSS_T) /*mips*/
3249 case REG_RDATA_T: region = ", .rdata"; break;
3250 case REG_SDATA_T: region = ", .sdata"; break;
3251 case REG_SBSS_T: region = ", .sbss"; break;
3255 fprintf (stderr, ", ty: %s, vaddr: 0x%.8lx, vlen: 0x%.6lx%s\n",
3257 (long) load_hdr->region.regc_vm_addr,
3258 (long) load_hdr->region.regc_vm_size,
3266 /* Fatal error when {en,de}code_mach_o_header fails. */
3272 char *msg = (char *)0;
3276 case MO_ERROR_BAD_MAGIC: msg = "bad magic number"; break;
3277 case MO_ERROR_BAD_HDR_VERS: msg = "bad header version"; break;
3278 case MO_ERROR_BAD_RAW_HDR_VERS: msg = "bad raw header version"; break;
3279 case MO_ERROR_BUF2SML: msg = "raw header buffer too small"; break;
3280 case MO_ERROR_OLD_RAW_HDR_FILE: msg = "old raw header file"; break;
3281 case MO_ERROR_UNSUPPORTED_VERS: msg = "unsupported version"; break;
3284 if (msg == (char *)0)
3285 fatal ("unknown {de,en}code_mach_o_hdr return value %d", status);
3291 /* Read a file into a memory buffer. */
3293 static struct file_info *
3294 read_file (name, fd, rw)
3295 char *name; /* filename */
3296 int fd; /* file descriptor */
3297 int rw; /* read/write */
3299 struct stat stat_pkt;
3300 struct file_info *p = (struct file_info *) xcalloc (sizeof (struct file_info), 1);
3302 static int page_size;
3305 if (fstat (fd, &stat_pkt) < 0)
3306 fatal_perror ("fstat %s", name);
3309 p->size = stat_pkt.st_size;
3310 p->rounded_size = stat_pkt.st_size;
3316 fprintf (stderr, "mmap %s, %s\n", name, (rw) ? "read/write" : "read-only");
3319 page_size = sysconf (_SC_PAGE_SIZE);
3321 p->rounded_size = ((p->size + page_size - 1) / page_size) * page_size;
3322 p->start = mmap ((caddr_t)0,
3323 (rw) ? p->rounded_size : p->size,
3324 (rw) ? (PROT_READ | PROT_WRITE) : PROT_READ,
3325 MAP_FILE | MAP_VARIABLE | MAP_SHARED,
3329 if (p->start != (char *)0 && p->start != (char *)-1)
3333 #endif /* USE_MMAP */
3338 fprintf (stderr, "read %s\n", name);
3341 p->start = xmalloc (p->size);
3342 if (lseek (fd, 0L, SEEK_SET) < 0)
3343 fatal_perror ("lseek to 0 on %s", name);
3345 len = read (fd, p->start, p->size);
3347 fatal_perror ("read %s", name);
3350 fatal ("read %ld bytes, expected %ld, from %s", len, p->size, name);
3356 /* Do anything necessary to write a file back from memory. */
3360 struct file_info *ptr; /* file information block */
3368 fprintf (stderr, "msync %s\n", ptr->name);
3370 if (msync (ptr->start, ptr->rounded_size, MS_ASYNC))
3371 fatal_perror ("msync %s", ptr->name);
3375 fprintf (stderr, "munmap %s\n", ptr->name);
3377 if (munmap (ptr->start, ptr->size))
3378 fatal_perror ("munmap %s", ptr->name);
3381 #endif /* USE_MMAP */
3388 fprintf (stderr, "write %s\n", ptr->name);
3390 if (lseek (ptr->fd, 0L, SEEK_SET) < 0)
3391 fatal_perror ("lseek to 0 on %s", ptr->name);
3393 len = write (ptr->fd, ptr->start, ptr->size);
3395 fatal_perror ("write %s", ptr->name);
3397 if (len != ptr->size)
3398 fatal ("wrote %ld bytes, expected %ld, to %s", len, ptr->size, ptr->name);
3407 #endif /* OBJECT_FORMAT_ROSE */