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>
50 extern const char *const sys_errlist[];
52 extern char *sys_errlist[];
59 /* Obstack allocation and deallocation routines. */
60 #define obstack_chunk_alloc xmalloc
61 #define obstack_chunk_free free
63 #if !defined (__STDC__) && !defined (const)
71 /* Add prototype support. */
73 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
74 #define PROTO(ARGS) ARGS
76 #define PROTO(ARGS) ()
87 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
90 #define WTERMSIG(S) ((S) & 0x7f)
93 #define WIFEXITED(S) (((S) & 0xff) == 0)
96 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
99 /* On MSDOS, write temp files in current dir
100 because there's no place else we can expect to use. */
103 #define P_tmpdir "./"
107 /* On certain systems, we have code that works by scanning the object file
108 directly. But this code uses system-specific header files and library
109 functions, so turn it off in a cross-compiler. Likewise, the names of
110 the utilities aren't correct for a cross-compiler; we have to hope that
111 cross-versions are in the proper directories. */
114 #undef SUNOS4_SHARED_LIBRARIES
115 #undef OBJECT_FORMAT_COFF
116 #undef OBJECT_FORMAT_ROSE
117 #undef MD_EXEC_PREFIX
118 #undef REAL_LD_FILE_NAME
119 #undef REAL_NM_FILE_NAME
120 #undef REAL_STRIP_FILE_NAME
123 /* If we can't use a special method, use the ordinary one:
124 run nm to find what symbols are present.
125 In a cross-compiler, this means you need a cross nm,
126 but that isn't quite as unpleasant as special headers. */
128 #if !defined (OBJECT_FORMAT_COFF) && !defined (OBJECT_FORMAT_ROSE)
129 #define OBJECT_FORMAT_NONE
132 #ifdef OBJECT_FORMAT_COFF
141 /* Many versions of ldfcn.h define these. */
149 /* Some systems have an ISCOFF macro, but others do not. In some cases
150 the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines
151 that either do not have an ISCOFF macro in /usr/include or for those
152 where it is wrong. */
155 #define MY_ISCOFF(X) ISCOFF (X)
158 #ifdef XCOFF_DEBUGGING_INFO
159 #define XCOFF_SCAN_LIBS
162 #endif /* OBJECT_FORMAT_COFF */
164 #ifdef OBJECT_FORMAT_ROSE
171 #include <sys/mman.h>
175 #include <mach_o_format.h>
176 #include <mach_o_header.h>
177 #include <mach_o_vals.h>
178 #include <mach_o_types.h>
180 #endif /* OBJECT_FORMAT_ROSE */
182 #ifdef OBJECT_FORMAT_NONE
184 /* Default flags to pass to nm. */
186 #define NM_FLAGS "-p"
189 #endif /* OBJECT_FORMAT_NONE */
191 /* Some systems use __main in a way incompatible with its use in gcc, in these
192 cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
193 give the same symbol without quotes for an alternative entry point. You
194 must define both, or neither. */
196 #define NAME__MAIN "__main"
197 #define SYMBOL__MAIN __main
200 #if defined (LDD_SUFFIX) || SUNOS4_SHARED_LIBRARIES || defined(XCOFF_SCAN_LIBS)
201 #define SCAN_LIBRARIES
205 int do_collecting = 1;
207 int do_collecting = 0;
210 /* Linked lists of constructor and destructor names. */
226 /* Enumeration giving which pass this is for scanning the program file. */
229 PASS_FIRST, /* without constructors */
230 PASS_OBJ, /* individual objects */
231 PASS_LIB, /* looking for shared libraries */
232 PASS_SECOND /* with constructors linked in */
235 #ifndef NO_SYS_SIGLIST
236 #ifndef DONT_DECLARE_SYS_SIGLIST
237 extern char *sys_siglist[];
240 extern char *version_string;
242 int vflag; /* true if -v */
243 static int rflag; /* true if -r */
244 static int strip_flag; /* true if -s */
246 int debug; /* true if -debug */
248 static int shared_obj; /* true if -shared */
250 static int temp_filename_length; /* Length of temp_filename */
251 static char *temp_filename; /* Base of temp filenames */
252 static char *c_file; /* <xxx>.c for constructor/destructor list. */
253 static char *o_file; /* <xxx>.o for constructor/destructor list. */
254 static char *export_file; /* <xxx>.x for AIX export list. */
255 char *ldout; /* File for ld errors. */
256 static char *output_file; /* Output file for ld. */
257 static char *nm_file_name; /* pathname of nm */
258 static char *ldd_file_name; /* pathname of ldd (or equivalent) */
259 static char *strip_file_name; /* pathname of strip */
260 char *c_file_name; /* pathname of gcc */
261 static char *initname, *fininame; /* names of init and fini funcs */
263 static struct head constructors; /* list of constructors found */
264 static struct head destructors; /* list of destructors found */
265 static struct head exports; /* list of exported symbols */
267 struct obstack temporary_obstack;
268 struct obstack permanent_obstack;
269 char * temporary_firstobj;
271 /* Defined in the automatically-generated underscore.c. */
272 extern int prepends_underscore;
274 extern char *getenv ();
275 extern char *mktemp ();
276 extern FILE *fdopen ();
278 /* Structure to hold all the directories in which to search for files to
283 char *prefix; /* String to prepend to the path. */
284 struct prefix_list *next; /* Next in linked list. */
289 struct prefix_list *plist; /* List of prefixes to try */
290 int max_len; /* Max length of a prefix in PLIST */
291 char *name; /* Name of this list (used in config stuff) */
294 void collect_exit PROTO((int));
295 void collect_execute PROTO((char *, char **, char *));
296 void dump_file PROTO((char *));
297 static void handler PROTO((int));
298 static int is_ctor_dtor PROTO((char *));
299 static void choose_temp_base PROTO((void));
300 static int is_in_prefix_list PROTO((struct path_prefix *, char *, int));
301 static char *find_a_file PROTO((struct path_prefix *, char *));
302 static void add_prefix PROTO((struct path_prefix *, char *));
303 static void prefix_from_env PROTO((char *, struct path_prefix *));
304 static void prefix_from_string PROTO((char *, struct path_prefix *));
305 static void do_wait PROTO((char *));
306 static void fork_execute PROTO((char *, char **));
307 static void maybe_unlink PROTO((char *));
308 static void add_to_list PROTO((struct head *, char *));
309 static void write_list PROTO((FILE *, char *, struct id *));
310 static void write_list_with_asm PROTO((FILE *, char *, struct id *));
311 static void write_c_file PROTO((FILE *, char *));
312 static void write_export_file PROTO((FILE *));
313 static void scan_prog_file PROTO((char *, enum pass));
314 static void scan_libraries PROTO((char *));
319 extern char *index ();
320 extern char *rindex ();
336 while ((fd = dup (oldfd)) != newfd && fd >= 0) /* good enough for low fd's */
339 close (fdtmp[--fdx]);
355 static char buffer[30];
359 if (e > 0 && e < sys_nerr)
360 return sys_errlist[e];
362 sprintf (buffer, "Unknown error %d", e);
367 /* Delete tempfiles and exit function. */
370 collect_exit (status)
373 if (c_file != 0 && c_file[0])
374 maybe_unlink (c_file);
376 if (o_file != 0 && o_file[0])
377 maybe_unlink (o_file);
379 if (export_file != 0 && export_file[0])
380 maybe_unlink (export_file);
382 if (ldout != 0 && ldout[0])
385 maybe_unlink (ldout);
388 if (status != 0 && output_file != 0 && output_file[0])
389 maybe_unlink (output_file);
395 /* Die when sys call fails. */
398 fatal_perror (string, arg1, arg2, arg3)
399 char *string, *arg1, *arg2, *arg3;
403 fprintf (stderr, "collect2: ");
404 fprintf (stderr, string, arg1, arg2, arg3);
405 fprintf (stderr, ": %s\n", my_strerror (e));
412 fatal (string, arg1, arg2, arg3)
413 char *string, *arg1, *arg2, *arg3;
415 fprintf (stderr, "collect2: ");
416 fprintf (stderr, string, arg1, arg2, arg3);
417 fprintf (stderr, "\n");
421 /* Write error message. */
424 error (string, arg1, arg2, arg3, arg4)
425 char *string, *arg1, *arg2, *arg3, *arg4;
427 fprintf (stderr, "collect2: ");
428 fprintf (stderr, string, arg1, arg2, arg3, arg4);
429 fprintf (stderr, "\n");
432 /* In case obstack is linked in, and abort is defined to fancy_abort,
433 provide a default entry. */
438 fatal ("internal error");
446 if (c_file != 0 && c_file[0])
447 maybe_unlink (c_file);
449 if (o_file != 0 && o_file[0])
450 maybe_unlink (o_file);
452 if (ldout != 0 && ldout[0])
453 maybe_unlink (ldout);
455 signal (signo, SIG_DFL);
456 kill (getpid (), signo);
461 xcalloc (size1, size2)
464 char *ptr = (char *) calloc (size1, size2);
468 fatal ("out of memory");
476 char *ptr = (char *) malloc (size);
480 fatal ("out of memory");
489 register char *value = (char *) realloc (ptr, size);
491 fatal ("virtual memory exhausted");
499 return access (name, R_OK) == 0;
502 /* Make a copy of a string INPUT with size SIZE. */
505 savestring (input, size)
509 char *output = (char *) xmalloc (size + 1);
510 bcopy (input, output, size);
519 FILE *stream = fopen (name, "r");
520 int no_demangle = !! getenv ("COLLECT_NO_DEMANGLE");
527 while (c = getc (stream),
528 c != EOF && (isalnum (c) || c == '_' || c == '$' || c == '.'))
529 obstack_1grow (&temporary_obstack, c);
530 if (obstack_object_size (&temporary_obstack) > 0)
532 char *word, *p, *result;
533 obstack_1grow (&temporary_obstack, '\0');
534 word = obstack_finish (&temporary_obstack);
537 ++word, putc ('.', stderr);
539 if (*p == '_' && prepends_underscore)
545 result = cplus_demangle (p, DMGL_PARAMS | DMGL_ANSI);
550 fputs (result, stderr);
552 diff = strlen (word) - strlen (result);
554 --diff, putc (' ', stderr);
555 while (diff < 0 && c == ' ')
556 ++diff, c = getc (stream);
561 fputs (word, stderr);
564 obstack_free (&temporary_obstack, temporary_firstobj);
572 /* Decide whether the given symbol is:
573 a constructor (1), a destructor (2), or neither (0). */
579 struct names { char *name; int len; int ret; int two_underscores; };
581 register struct names *p;
583 register char *orig_s = s;
585 static struct names special[] = {
586 #ifdef NO_DOLLAR_IN_LABEL
587 #ifdef NO_DOT_IN_LABEL
588 { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 },
589 { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 },
591 { "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 },
592 { "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 },
595 { "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 },
596 { "GLOBAL_$D$", sizeof ("GLOBAL_$D$")-1, 2, 0 },
598 { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 },
599 { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 },
600 #ifdef CFRONT_LOSSAGE /* Don't collect cfront initialization functions.
601 cfront has its own linker procedure to collect them;
602 if collect2 gets them too, they get collected twice
603 when the cfront procedure is run and the compiler used
604 for linking happens to be GCC. */
605 { "sti__", sizeof ("sti__")-1, 1, 1 },
606 { "std__", sizeof ("std__")-1, 2, 1 },
607 #endif /* CFRONT_LOSSAGE */
611 while ((ch = *s) == '_')
617 for (p = &special[0]; p->len > 0; p++)
620 && (!p->two_underscores || ((s - orig_s) >= 2))
621 && strncmp(s, p->name, p->len) == 0)
630 /* Compute a string to use as the base of all temporary file names.
631 It is substituted for %g. */
636 char *base = getenv ("TMPDIR");
639 if (base == (char *)0)
642 if (access (P_tmpdir, R_OK | W_OK) == 0)
645 if (base == (char *)0)
647 if (access ("/usr/tmp", R_OK | W_OK) == 0)
655 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
656 strcpy (temp_filename, base);
657 if (len > 0 && temp_filename[len-1] != '/')
658 temp_filename[len++] = '/';
659 strcpy (temp_filename + len, "ccXXXXXX");
661 mktemp (temp_filename);
662 temp_filename_length = strlen (temp_filename);
665 /* Routine to add variables to the environment. */
673 #ifndef VMS /* nor about VMS */
675 extern char **environ;
676 char **old_environ = environ;
683 while ((ch = *p++) != '\0' && ch != '=')
689 /* Search for replacing an existing environment variable, and
690 count the number of total environment variables. */
691 for (envp = old_environ; *envp; envp++)
694 if (!strncmp (str, *envp, name_len))
701 /* Add a new environment variable */
702 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
704 bcopy ((char *) old_environ, (char *) (environ + 1),
705 sizeof (char *) * (num_envs+1));
711 #endif /* HAVE_PUTENV */
713 /* By default, colon separates directories in a path. */
714 #ifndef PATH_SEPARATOR
715 #define PATH_SEPARATOR ':'
718 /* We maintain two prefix lists: one from COMPILER_PATH environment variable
719 and one from the PATH variable. */
721 static struct path_prefix cpath, path;
724 /* This is the name of the target machine. We use it to form the name
725 of the files to execute. */
727 static char *target_machine = TARGET_MACHINE;
730 /* Names under which we were executed. Never return one of those files in our
733 static struct path_prefix our_file_names;
735 /* Determine if STRING is in PPREFIX.
737 This utility is currently only used to look up file names. Prefix lists
738 record directory names. This matters to us because the latter has a
739 trailing slash, so I've added a flag to handle both. */
742 is_in_prefix_list (pprefix, string, filep)
743 struct path_prefix *pprefix;
747 struct prefix_list *pl;
751 int len = strlen (string);
753 for (pl = pprefix->plist; pl; pl = pl->next)
755 if (strncmp (pl->prefix, string, len) == 0
756 && strcmp (pl->prefix + len, "/") == 0)
762 for (pl = pprefix->plist; pl; pl = pl->next)
764 if (strcmp (pl->prefix, string) == 0)
772 /* Search for NAME using prefix list PPREFIX. We only look for executable
775 Return 0 if not found, otherwise return its name, allocated with malloc. */
778 find_a_file (pprefix, name)
779 struct path_prefix *pprefix;
783 struct prefix_list *pl;
784 int len = pprefix->max_len + strlen (name) + 1;
786 #ifdef EXECUTABLE_SUFFIX
787 len += strlen (EXECUTABLE_SUFFIX);
790 temp = xmalloc (len);
792 /* Determine the filename to execute (special case for absolute paths). */
796 if (access (name, X_OK) == 0)
803 for (pl = pprefix->plist; pl; pl = pl->next)
805 strcpy (temp, pl->prefix);
807 if (! is_in_prefix_list (&our_file_names, temp, 1)
808 /* This is a kludge, but there seems no way around it. */
809 && strcmp (temp, "./ld") != 0
810 && access (temp, X_OK) == 0)
813 #ifdef EXECUTABLE_SUFFIX
814 /* Some systems have a suffix for executable files.
815 So try appending that. */
816 strcat (temp, EXECUTABLE_SUFFIX);
817 if (! is_in_prefix_list (&our_file_names, temp, 1)
818 && access (temp, X_OK) == 0)
827 /* Add an entry for PREFIX to prefix list PPREFIX. */
830 add_prefix (pprefix, prefix)
831 struct path_prefix *pprefix;
834 struct prefix_list *pl, **prev;
839 for (pl = pprefix->plist; pl->next; pl = pl->next)
844 prev = &pprefix->plist;
846 /* Keep track of the longest prefix */
848 len = strlen (prefix);
849 if (len > pprefix->max_len)
850 pprefix->max_len = len;
852 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
853 pl->prefix = savestring (prefix, len);
858 pl->next = (struct prefix_list *) 0;
862 /* Take the value of the environment variable ENV, break it into a path, and
863 add of the entries to PPREFIX. */
866 prefix_from_env (env, pprefix)
868 struct path_prefix *pprefix;
870 char *p = getenv (env);
873 prefix_from_string (p, pprefix);
877 prefix_from_string (p, pprefix)
879 struct path_prefix *pprefix;
882 char *nstore = (char *) xmalloc (strlen (p) + 3);
887 if (*endp == PATH_SEPARATOR || *endp == 0)
889 strncpy (nstore, startp, endp-startp);
892 strcpy (nstore, "./");
894 else if (endp[-1] != '/')
896 nstore[endp-startp] = '/';
897 nstore[endp-startp+1] = 0;
900 nstore[endp-startp] = 0;
902 add_prefix (pprefix, nstore);
905 endp = startp = endp + 1;
919 char *ld_suffix = "ld";
920 char *full_ld_suffix = ld_suffix;
921 char *real_ld_suffix = "real-ld";
922 char *full_real_ld_suffix = real_ld_suffix;
923 char *collect_ld_suffix = "collect-ld";
924 char *nm_suffix = "nm";
925 char *full_nm_suffix = nm_suffix;
926 char *gnm_suffix = "gnm";
927 char *full_gnm_suffix = gnm_suffix;
929 char *ldd_suffix = LDD_SUFFIX;
930 char *full_ldd_suffix = ldd_suffix;
932 char *strip_suffix = "strip";
933 char *full_strip_suffix = strip_suffix;
934 char *gstrip_suffix = "gstrip";
935 char *full_gstrip_suffix = gstrip_suffix;
937 FILE *outf, *exportf;
944 char **ld1_argv = (char **) xcalloc (sizeof (char *), argc+3);
945 char **ld1 = ld1_argv;
946 char **ld2_argv = (char **) xcalloc (sizeof (char *), argc+6);
947 char **ld2 = ld2_argv;
948 char **object_lst = (char **) xcalloc (sizeof (char *), argc);
949 char **object = object_lst;
951 int num_c_args = argc+7;
958 output_file = "a.out";
960 obstack_begin (&temporary_obstack, 0);
961 obstack_begin (&permanent_obstack, 0);
962 temporary_firstobj = (char *) obstack_alloc (&temporary_obstack, 0);
963 current_demangling_style = gnu_demangling;
965 /* We must check that we do not call ourselves in an infinite
966 recursion loop. We append the name used for us to the COLLECT_NAMES
967 environment variable.
969 In practice, collect will rarely invoke itself. This can happen now
970 that we are no longer called gld. A perfect example is when running
971 gcc in a build directory that has been installed. When looking for
972 ld's, we'll find our installed version and believe that's the real ld. */
974 /* We must also append COLLECT_NAME to COLLECT_NAMES to watch for the
975 previous version of collect (the one that used COLLECT_NAME and only
976 handled two levels of recursion). If we don't we may mutually recurse
977 forever. This can happen (I think) when bootstrapping the old version
978 and a new one is installed (rare, but we should handle it).
979 ??? Hopefully references to COLLECT_NAME can be removed at some point. */
981 collect_name = (char *) getenv ("COLLECT_NAME");
982 collect_names = (char *) getenv ("COLLECT_NAMES");
984 p = (char *) xmalloc (strlen ("COLLECT_NAMES=")
985 + (collect_name ? strlen (collect_name) + 1 : 0)
986 + (collect_names ? strlen (collect_names) + 1 : 0)
987 + strlen (argv[0]) + 1);
988 strcpy (p, "COLLECT_NAMES=");
989 if (collect_name != 0)
990 sprintf (p + strlen (p), "%s%c", collect_name, PATH_SEPARATOR);
991 if (collect_names != 0)
992 sprintf (p + strlen (p), "%s%c", collect_names, PATH_SEPARATOR);
996 prefix_from_env ("COLLECT_NAMES", &our_file_names);
998 /* Set environment variable COLLECT_NAME to our name so the previous version
999 of collect won't find us. If it does we'll mutually recurse forever.
1000 This can happen when bootstrapping the new version and an old version is
1002 ??? Hopefully this bit of code can be removed at some point. */
1004 p = xmalloc (strlen ("COLLECT_NAME=") + strlen (argv[0]) + 1);
1005 sprintf (p, "COLLECT_NAME=%s", argv[0]);
1008 p = (char *) getenv ("COLLECT_GCC_OPTIONS");
1013 while (*q && *q != ' ') q++;
1014 if (*p == '-' && p[1] == 'm')
1021 c_ptr = c_argv = (char **) xcalloc (sizeof (char *), num_c_args);
1024 fatal ("no arguments");
1027 if (signal (SIGQUIT, SIG_IGN) != SIG_IGN)
1028 signal (SIGQUIT, handler);
1030 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
1031 signal (SIGINT, handler);
1033 if (signal (SIGALRM, SIG_IGN) != SIG_IGN)
1034 signal (SIGALRM, handler);
1037 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
1038 signal (SIGHUP, handler);
1040 if (signal (SIGSEGV, SIG_IGN) != SIG_IGN)
1041 signal (SIGSEGV, handler);
1043 if (signal (SIGBUS, SIG_IGN) != SIG_IGN)
1044 signal (SIGBUS, handler);
1047 /* Extract COMPILER_PATH and PATH into our prefix list. */
1048 prefix_from_env ("COMPILER_PATH", &cpath);
1049 prefix_from_env ("PATH", &path);
1051 #ifdef CROSS_COMPILE
1052 /* If we look for a program in the compiler directories, we just use
1053 the short name, since these directories are already system-specific.
1054 But it we look for a took in the system directories, we need to
1055 qualify the program name with the target machine. */
1058 = xcalloc (strlen (ld_suffix) + strlen (target_machine) + 2, 1);
1059 strcpy (full_ld_suffix, target_machine);
1060 strcat (full_ld_suffix, "-");
1061 strcat (full_ld_suffix, ld_suffix);
1064 = xcalloc (strlen (real_ld_suffix) + strlen (target_machine) + 2, 1);
1065 strcpy (full_real_ld_suffix, target_machine);
1066 strcat (full_real_ld_suffix, "-");
1067 strcat (full_real_ld_suffix, real_ld_suffix);
1071 = xcalloc (strlen (gld_suffix) + strlen (target_machine) + 2, 1);
1072 strcpy (full_gld_suffix, target_machine);
1073 strcat (full_gld_suffix, "-");
1074 strcat (full_gld_suffix, gld_suffix);
1078 = xcalloc (strlen (nm_suffix) + strlen (target_machine) + 2, 1);
1079 strcpy (full_nm_suffix, target_machine);
1080 strcat (full_nm_suffix, "-");
1081 strcat (full_nm_suffix, nm_suffix);
1084 = xcalloc (strlen (gnm_suffix) + strlen (target_machine) + 2, 1);
1085 strcpy (full_gnm_suffix, target_machine);
1086 strcat (full_gnm_suffix, "-");
1087 strcat (full_gnm_suffix, gnm_suffix);
1091 = xcalloc (strlen (ldd_suffix) + strlen (target_machine) + 2, 1);
1092 strcpy (full_ldd_suffix, target_machine);
1093 strcat (full_ldd_suffix, "-");
1094 strcat (full_ldd_suffix, ldd_suffix);
1098 = xcalloc (strlen (strip_suffix) + strlen (target_machine) + 2, 1);
1099 strcpy (full_strip_suffix, target_machine);
1100 strcat (full_strip_suffix, "-");
1101 strcat (full_strip_suffix, strip_suffix);
1104 = xcalloc (strlen (gstrip_suffix) + strlen (target_machine) + 2, 1);
1105 strcpy (full_gstrip_suffix, target_machine);
1106 strcat (full_gstrip_suffix, "-");
1107 strcat (full_gstrip_suffix, gstrip_suffix);
1108 #endif /* CROSS_COMPILE */
1110 /* Try to discover a valid linker/nm/strip to use. */
1112 /* Maybe we know the right file to use (if not cross). */
1113 #ifdef REAL_LD_FILE_NAME
1114 ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME);
1115 if (ld_file_name == 0)
1117 /* Search the (target-specific) compiler dirs for ld'. */
1118 ld_file_name = find_a_file (&cpath, real_ld_suffix);
1119 /* Likewise for `collect-ld'. */
1120 if (ld_file_name == 0)
1121 ld_file_name = find_a_file (&cpath, collect_ld_suffix);
1122 /* Search the compiler directories for `ld'. We have protection against
1123 recursive calls in find_a_file. */
1124 if (ld_file_name == 0)
1125 ld_file_name = find_a_file (&cpath, ld_suffix);
1126 /* Search the ordinary system bin directories
1127 for `ld' (if native linking) or `TARGET-ld' (if cross). */
1128 if (ld_file_name == 0)
1129 ld_file_name = find_a_file (&path, full_ld_suffix);
1131 /* If we've invoked ourselves, try again with LD_FILE_NAME. */
1133 if (collect_names != 0)
1135 if (ld_file_name != 0)
1137 argv[0] = ld_file_name;
1138 execvp (argv[0], argv);
1140 fatal ("cannot find `ld'");
1143 #ifdef REAL_NM_FILE_NAME
1144 nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME);
1145 if (nm_file_name == 0)
1147 nm_file_name = find_a_file (&cpath, gnm_suffix);
1148 if (nm_file_name == 0)
1149 nm_file_name = find_a_file (&path, full_gnm_suffix);
1150 if (nm_file_name == 0)
1151 nm_file_name = find_a_file (&cpath, nm_suffix);
1152 if (nm_file_name == 0)
1153 nm_file_name = find_a_file (&path, full_nm_suffix);
1156 ldd_file_name = find_a_file (&cpath, ldd_suffix);
1157 if (ldd_file_name == 0)
1158 ldd_file_name = find_a_file (&path, full_ldd_suffix);
1161 #ifdef REAL_STRIP_FILE_NAME
1162 strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME);
1163 if (strip_file_name == 0)
1165 strip_file_name = find_a_file (&cpath, gstrip_suffix);
1166 if (strip_file_name == 0)
1167 strip_file_name = find_a_file (&path, full_gstrip_suffix);
1168 if (strip_file_name == 0)
1169 strip_file_name = find_a_file (&cpath, strip_suffix);
1170 if (strip_file_name == 0)
1171 strip_file_name = find_a_file (&path, full_strip_suffix);
1173 /* Determine the full path name of the C compiler to use. */
1174 c_file_name = getenv ("COLLECT_GCC");
1175 if (c_file_name == 0)
1177 #ifdef CROSS_COMPILE
1178 c_file_name = xcalloc (sizeof ("gcc-") + strlen (target_machine) + 1, 1);
1179 strcpy (c_file_name, target_machine);
1180 strcat (c_file_name, "-gcc");
1182 c_file_name = "gcc";
1186 p = find_a_file (&cpath, c_file_name);
1188 /* Here it should be safe to use the system search path since we should have
1189 already qualified the name of the compiler when it is needed. */
1191 p = find_a_file (&path, c_file_name);
1196 *ld1++ = *ld2++ = ld_file_name;
1198 /* Make temp file names. */
1199 choose_temp_base ();
1200 c_file = xcalloc (temp_filename_length + sizeof (".c"), 1);
1201 o_file = xcalloc (temp_filename_length + sizeof (".o"), 1);
1202 export_file = xmalloc (temp_filename_length + sizeof (".x"));
1203 ldout = xmalloc (temp_filename_length + sizeof (".ld"));
1204 sprintf (ldout, "%s.ld", temp_filename);
1205 sprintf (c_file, "%s.c", temp_filename);
1206 sprintf (o_file, "%s.o", temp_filename);
1207 sprintf (export_file, "%s.x", temp_filename);
1208 *c_ptr++ = c_file_name;
1213 /* !!! When GCC calls collect2,
1214 it does not know whether it is calling collect2 or ld.
1215 So collect2 cannot meaningfully understand any options
1216 except those ld understands.
1217 If you propose to make GCC pass some other option,
1218 just imagine what will happen if ld is really ld!!! */
1220 /* Parse arguments. Remember output file spec, pass the rest to ld. */
1221 /* After the first file, put in the c++ rt0. */
1224 while ((arg = *++argv) != (char *)0)
1226 *ld1++ = *ld2++ = arg;
1233 if (!strcmp (arg, "-debug"))
1245 /* place o_file BEFORE this argument! */
1255 output_file = *ld1++ = *ld2++ = *++argv;
1257 output_file = &arg[2];
1266 if (arg[2] == '\0' && do_collecting)
1268 /* We must strip after the nm run, otherwise C++ linking
1269 won't work. Thus we strip in the second ld run, or
1270 else with strip if there is no second ld run. */
1282 else if ((p = rindex (arg, '.')) != (char *)0
1283 && (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0))
1292 /* place o_file BEFORE this argument! */
1303 /* Get any options that the upper GCC wants to pass to the sub-GCC. */
1304 p = (char *) getenv ("COLLECT_GCC_OPTIONS");
1309 while (*q && *q != ' ') q++;
1310 if (*p == '-' && (p[1] == 'm' || p[1] == 'f'))
1311 *c_ptr++ = savestring (p, q - p);
1312 if (strncmp (p, "-shared", sizeof ("shared") - 1) == 0)
1319 #ifdef COLLECT_EXPORT_LIST
1320 /* The AIX linker will discard static constructors in object files if
1321 nothing else in the file is referenced, so look at them first. */
1322 while (object_lst < object)
1323 scan_prog_file (*object_lst++, PASS_OBJ);
1326 char *buf = alloca (strlen (export_file) + 5);
1327 sprintf (buf, "-bE:%s", export_file);
1330 exportf = fopen (export_file, "w");
1331 if (exportf == (FILE *)0)
1332 fatal_perror ("%s", export_file);
1333 write_export_file (exportf);
1334 if (fclose (exportf))
1335 fatal_perror ("closing %s", export_file);
1340 *object = *c_ptr = *ld1 = (char *)0;
1344 fprintf (stderr, "collect2 version %s", version_string);
1345 #ifdef TARGET_VERSION
1348 fprintf (stderr, "\n");
1354 fprintf (stderr, "ld_file_name = %s\n",
1355 (ld_file_name ? ld_file_name : "not found"));
1356 fprintf (stderr, "c_file_name = %s\n",
1357 (c_file_name ? c_file_name : "not found"));
1358 fprintf (stderr, "nm_file_name = %s\n",
1359 (nm_file_name ? nm_file_name : "not found"));
1361 fprintf (stderr, "ldd_file_name = %s\n",
1362 (ldd_file_name ? ldd_file_name : "not found"));
1364 fprintf (stderr, "strip_file_name = %s\n",
1365 (strip_file_name ? strip_file_name : "not found"));
1366 fprintf (stderr, "c_file = %s\n",
1367 (c_file ? c_file : "not found"));
1368 fprintf (stderr, "o_file = %s\n",
1369 (o_file ? o_file : "not found"));
1371 ptr = getenv ("COLLECT_NAMES");
1373 fprintf (stderr, "COLLECT_NAMES = %s\n", ptr);
1375 ptr = getenv ("COLLECT_GCC_OPTIONS");
1377 fprintf (stderr, "COLLECT_GCC_OPTIONS = %s\n", ptr);
1379 ptr = getenv ("COLLECT_GCC");
1381 fprintf (stderr, "COLLECT_GCC = %s\n", ptr);
1383 ptr = getenv ("COMPILER_PATH");
1385 fprintf (stderr, "COMPILER_PATH = %s\n", ptr);
1387 ptr = getenv ("LIBRARY_PATH");
1389 fprintf (stderr, "LIBRARY_PATH = %s\n", ptr);
1391 fprintf (stderr, "\n");
1394 /* Load the program, searching all libraries. */
1396 collect_execute ("ld", ld1_argv, ldout);
1401 /* If -r or they'll be run via some other method, don't build the
1402 constructor or destructor list, just return now. */
1403 if (rflag || ! do_collecting)
1406 /* Examine the namelist with nm and search it for static constructors
1407 and destructors to call.
1408 Write the constructor and destructor tables to a .s file and reload. */
1410 scan_prog_file (output_file, PASS_FIRST);
1412 #ifdef SCAN_LIBRARIES
1413 scan_libraries (output_file);
1418 fprintf (stderr, "%d constructor(s) found\n", constructors.number);
1419 fprintf (stderr, "%d destructor(s) found\n", destructors.number);
1422 if (constructors.number == 0 && destructors.number == 0
1424 /* If we will be running these functions ourselves, we want to emit
1425 stubs into the shared library so that we don't have to relink
1426 dependent programs when we add static objects. */
1431 /* Strip now if it was requested on the command line. */
1434 char **strip_argv = (char **) xcalloc (sizeof (char *), 3);
1435 strip_argv[0] = strip_file_name;
1436 strip_argv[1] = output_file;
1437 strip_argv[2] = (char *) 0;
1438 fork_execute ("strip", strip_argv);
1441 #ifdef COLLECT_EXPORT_LIST
1442 maybe_unlink (export_file);
1447 maybe_unlink(output_file);
1448 outf = fopen (c_file, "w");
1449 if (outf == (FILE *)0)
1450 fatal_perror ("%s", c_file);
1452 write_c_file (outf, c_file);
1455 fatal_perror ("closing %s", c_file);
1457 /* Tell the linker that we have initializer and finalizer functions. */
1458 #ifdef LD_INIT_SWITCH
1459 *ld2++ = LD_INIT_SWITCH;
1461 *ld2++ = LD_FINI_SWITCH;
1466 #ifdef COLLECT_EXPORT_LIST
1469 add_to_list (&exports, initname);
1470 add_to_list (&exports, fininame);
1471 add_to_list (&exports, "_GLOBAL__DI");
1472 add_to_list (&exports, "_GLOBAL__DD");
1473 exportf = fopen (export_file, "w");
1474 if (exportf == (FILE *)0)
1475 fatal_perror ("%s", export_file);
1476 write_export_file (exportf);
1477 if (fclose (exportf))
1478 fatal_perror ("closing %s", export_file);
1484 fprintf (stderr, "\n========== output_file = %s, c_file = %s\n",
1485 output_file, c_file);
1486 write_c_file (stderr, "stderr");
1487 fprintf (stderr, "========== end of c_file\n\n");
1488 #ifdef COLLECT_EXPORT_LIST
1489 fprintf (stderr, "\n========== export_file = %s\n", export_file);
1490 write_export_file (stderr);
1491 fprintf (stderr, "========== end of export_file\n\n");
1495 /* Assemble the constructor and destructor tables.
1496 Link the tables in with the rest of the program. */
1498 fork_execute ("gcc", c_argv);
1499 fork_execute ("ld", ld2_argv);
1501 /* Let scan_prog_file do any final mods (OSF/rose needs this for
1502 constructors/destructors in shared libraries. */
1503 scan_prog_file (output_file, PASS_SECOND);
1505 maybe_unlink (c_file);
1506 maybe_unlink (o_file);
1507 maybe_unlink (export_file);
1512 /* Wait for a process to finish, and exit if a non-zero status is found. */
1523 if (WIFSIGNALED (status))
1525 int sig = WTERMSIG (status);
1526 #ifdef NO_SYS_SIGLIST
1527 error ("%s terminated with signal %d %s",
1530 (status & 0200) ? ", core dumped" : "");
1532 error ("%s terminated with signal %d [%s]%s",
1536 (status & 0200) ? ", core dumped" : "");
1542 if (WIFEXITED (status))
1543 return WEXITSTATUS (status);
1552 int ret = collect_wait (prog);
1555 error ("%s returned %d exit status", prog, ret);
1561 /* Fork and execute a program, and wait for the reply. */
1564 collect_execute (prog, argv, redir)
1577 fprintf (stderr, "%s", argv[0]);
1579 fprintf (stderr, "[cannot find %s]", prog);
1581 for (p_argv = &argv[1]; (str = *p_argv) != (char *)0; p_argv++)
1582 fprintf (stderr, " %s", str);
1584 fprintf (stderr, "\n");
1590 /* If we can't find a program we need, complain error. Do this here
1591 since we might not end up needing something that we couldn't find. */
1594 fatal ("cannot find `%s'", prog);
1600 fatal_perror ("fork");
1602 fatal_perror ("vfork");
1606 if (pid == 0) /* child context */
1611 if (freopen (redir, "a", stdout) == NULL)
1612 fatal_perror ("redirecting stdout");
1613 if (freopen (redir, "a", stderr) == NULL)
1614 fatal_perror ("redirecting stderr");
1617 execvp (argv[0], argv);
1618 fatal_perror ("executing %s", prog);
1623 fork_execute (prog, argv)
1627 collect_execute (prog, argv, NULL);
1631 /* Unlink a file unless we are debugging. */
1640 fprintf (stderr, "[Leaving %s]\n", file);
1644 /* Add a name to a linked list. */
1647 add_to_list (head_ptr, name)
1648 struct head *head_ptr;
1652 = (struct id *) xcalloc (sizeof (struct id) + strlen (name), 1);
1654 static long sequence_number = 0;
1655 strcpy (newid->name, name);
1657 if (head_ptr->first)
1658 head_ptr->last->next = newid;
1660 head_ptr->first = newid;
1662 /* Check for duplicate symbols. */
1663 for (p = head_ptr->first;
1664 strcmp (name, p->name) != 0;
1669 head_ptr->last->next = 0;
1674 newid->sequence = ++sequence_number;
1675 head_ptr->last = newid;
1679 /* Write: `prefix', the names on list LIST, `suffix'. */
1682 write_list (stream, prefix, list)
1689 fprintf (stream, "%sx%d,\n", prefix, list->sequence);
1695 write_list_with_asm (stream, prefix, list)
1702 fprintf (stream, "%sx%d __asm__ (\"%s\");\n",
1703 prefix, list->sequence, list->name);
1708 /* Write out the constructor and destructor tables statically (for a shared
1709 object), along with the functions to execute them. */
1712 write_c_file_stat (stream, name)
1716 char *prefix, *p, *q;
1718 /* Figure out name of output_file, stripping off .so version. */
1719 p = rindex (output_file, '/');
1721 p = (char *) output_file;
1735 if (strncmp (q, ".so", 3) == 0)
1744 /* q points to null at end of the string (or . of the .so version) */
1745 prefix = xmalloc (q - p + 1);
1746 strncpy (prefix, p, q - p);
1748 for (q = prefix; *q; q++)
1752 fprintf (stderr, "\nwrite_c_file - output name is %s, prefix is %s\n",
1753 output_file, prefix);
1755 #define INIT_NAME_FORMAT "_GLOBAL__FI_%s"
1756 initname = xmalloc (strlen (prefix) + sizeof (INIT_NAME_FORMAT) - 2);
1757 sprintf (initname, INIT_NAME_FORMAT, prefix);
1759 #define FINI_NAME_FORMAT "_GLOBAL__FD_%s"
1760 fininame = xmalloc (strlen (prefix) + sizeof (FINI_NAME_FORMAT) - 2);
1761 sprintf (fininame, FINI_NAME_FORMAT, prefix);
1765 /* Write the tables as C code */
1767 fprintf (stream, "static int count;\n");
1768 fprintf (stream, "typedef void entry_pt();\n");
1769 write_list_with_asm (stream, "extern entry_pt ", constructors.first);
1770 fprintf (stream, "void %s() {\n", initname);
1771 if (constructors.number > 0)
1773 fprintf (stream, "\tstatic entry_pt *ctors[] = {\n");
1774 write_list (stream, "\t\t", constructors.first);
1775 fprintf (stream, "\t};\n");
1776 fprintf (stream, "\tentry_pt **p;\n");
1777 fprintf (stream, "\tif (count++ != 0) return;\n");
1778 fprintf (stream, "\tp = ctors + %d;\n", constructors.number);
1779 fprintf (stream, "\twhile (p > ctors) (*--p)();\n");
1782 fprintf (stream, "\t++count;\n");
1783 fprintf (stream, "}\n");
1784 write_list_with_asm (stream, "extern entry_pt ", destructors.first);
1785 fprintf (stream, "void %s() {\n", fininame);
1786 if (destructors.number > 0)
1788 fprintf (stream, "\tstatic entry_pt *dtors[] = {\n");
1789 write_list (stream, "\t\t", destructors.first);
1790 fprintf (stream, "\t};\n");
1791 fprintf (stream, "\tentry_pt **p;\n");
1792 fprintf (stream, "\tif (--count != 0) return;\n");
1793 fprintf (stream, "\tp = dtors;\n");
1794 fprintf (stream, "\twhile (p < dtors + %d) (*p++)();\n",
1795 destructors.number);
1797 fprintf (stream, "}\n");
1801 fprintf (stream, "void _GLOBAL__DI() {\n\t%s();\n}\n", initname);
1802 fprintf (stream, "void _GLOBAL__DD() {\n\t%s();\n}\n", fininame);
1806 /* Write the constructor/destructor tables. */
1809 write_c_file_glob (stream, name)
1813 /* Write the tables as C code */
1815 fprintf (stream, "typedef void entry_pt();\n\n");
1817 write_list_with_asm (stream, "extern entry_pt ", constructors.first);
1819 fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n");
1820 fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number);
1821 write_list (stream, "\t", constructors.first);
1822 fprintf (stream, "\t0\n};\n\n");
1824 write_list_with_asm (stream, "extern entry_pt ", destructors.first);
1826 fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n");
1827 fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number);
1828 write_list (stream, "\t", destructors.first);
1829 fprintf (stream, "\t0\n};\n\n");
1831 fprintf (stream, "extern entry_pt %s;\n", NAME__MAIN);
1832 fprintf (stream, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN);
1836 write_c_file (stream, name)
1840 #ifndef LD_INIT_SWITCH
1842 write_c_file_glob (stream, name);
1845 write_c_file_stat (stream, name);
1849 write_export_file (stream)
1852 struct id *list = exports.first;
1853 for (; list; list = list->next)
1854 fprintf (stream, "%s\n", list->name);
1857 #ifdef OBJECT_FORMAT_NONE
1859 /* Generic version to scan the name list of the loaded program for
1860 the symbols g++ uses for static constructors and destructors.
1862 The constructor table begins at __CTOR_LIST__ and contains a count
1863 of the number of pointers (or -1 if the constructors are built in a
1864 separate section by the linker), followed by the pointers to the
1865 constructor functions, terminated with a null pointer. The
1866 destructor table has the same format, and begins at __DTOR_LIST__. */
1869 scan_prog_file (prog_name, which_pass)
1871 enum pass which_pass;
1873 void (*int_handler) ();
1874 void (*quit_handler) ();
1882 if (which_pass == PASS_SECOND)
1885 /* If we don't have an `nm', complain. */
1886 if (nm_file_name == 0)
1887 fatal ("cannot find `nm'");
1889 nm_argv[argc++] = nm_file_name;
1890 if (NM_FLAGS[0] != '\0')
1891 nm_argv[argc++] = NM_FLAGS;
1893 nm_argv[argc++] = prog_name;
1894 nm_argv[argc++] = (char *)0;
1896 if (pipe (pipe_fd) < 0)
1897 fatal_perror ("pipe");
1899 inf = fdopen (pipe_fd[0], "r");
1900 if (inf == (FILE *)0)
1901 fatal_perror ("fdopen");
1903 /* Trace if needed. */
1909 for (p_argv = &nm_argv[0]; (str = *p_argv) != (char *)0; p_argv++)
1910 fprintf (stderr, " %s", str);
1912 fprintf (stderr, "\n");
1918 /* Spawn child nm on pipe */
1923 fatal_perror ("fork");
1925 fatal_perror ("vfork");
1929 if (pid == 0) /* child context */
1932 if (dup2 (pipe_fd[1], 1) < 0)
1933 fatal_perror ("dup2 (%d, 1)", pipe_fd[1]);
1935 if (close (pipe_fd[0]) < 0)
1936 fatal_perror ("close (%d)", pipe_fd[0]);
1938 if (close (pipe_fd[1]) < 0)
1939 fatal_perror ("close (%d)", pipe_fd[1]);
1941 execv (nm_file_name, nm_argv);
1942 fatal_perror ("executing %s", nm_file_name);
1945 /* Parent context from here on. */
1946 int_handler = (void (*) ())signal (SIGINT, SIG_IGN);
1948 quit_handler = (void (*) ())signal (SIGQUIT, SIG_IGN);
1951 if (close (pipe_fd[1]) < 0)
1952 fatal_perror ("close (%d)", pipe_fd[1]);
1955 fprintf (stderr, "\nnm output with constructors/destructors.\n");
1957 /* Read each line of nm output. */
1958 while (fgets (buf, sizeof buf, inf) != (char *)0)
1963 /* If it contains a constructor or destructor name, add the name
1964 to the appropriate list. */
1966 for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++)
1967 if (ch == ' ' && p[1] == 'U' && p[2] == ' ')
1974 /* Find the end of the symbol name.
1975 Don't include `|', because Encore nm can tack that on the end. */
1976 for (end = p; (ch2 = *end) != '\0' && !isspace (ch2) && ch2 != '|';
1982 switch (is_ctor_dtor (name))
1985 if (which_pass != PASS_LIB)
1986 add_to_list (&constructors, name);
1990 if (which_pass != PASS_LIB)
1991 add_to_list (&destructors, name);
1995 if (which_pass != PASS_LIB)
1996 fatal ("init function found in object %s", prog_name);
1997 #ifndef LD_INIT_SWITCH
1998 add_to_list (&constructors, name);
2003 if (which_pass != PASS_LIB)
2004 fatal ("fini function found in object %s", prog_name);
2005 #ifndef LD_FINI_SWITCH
2006 add_to_list (&destructors, name);
2010 default: /* not a constructor or destructor */
2015 fprintf (stderr, "\t%s\n", buf);
2019 fprintf (stderr, "\n");
2021 if (fclose (inf) != 0)
2022 fatal_perror ("fclose of pipe");
2024 do_wait (nm_file_name);
2026 signal (SIGINT, int_handler);
2028 signal (SIGQUIT, quit_handler);
2032 #if SUNOS4_SHARED_LIBRARIES
2034 /* Routines to scan the SunOS 4 _DYNAMIC structure to find shared libraries
2035 that the output file depends upon and their initialization/finalization
2036 routines, if any. */
2041 #include <sys/mman.h>
2042 #include <sys/param.h>
2043 #include <sys/unistd.h>
2044 #include <sys/dir.h>
2046 /* pointers to the object file */
2047 unsigned object; /* address of memory mapped file */
2048 unsigned objsize; /* size of memory mapped to file */
2049 char * code; /* pointer to code segment */
2050 char * data; /* pointer to data segment */
2051 struct nlist *symtab; /* pointer to symbol table */
2052 struct link_dynamic *ld;
2053 struct link_dynamic_2 *ld_2;
2054 struct head libraries;
2056 /* Map the file indicated by NAME into memory and store its address. */
2064 if ((fp = open (name, O_RDONLY)) == -1)
2065 fatal ("unable to open file '%s'", name);
2066 if (fstat (fp, &s) == -1)
2067 fatal ("unable to stat file '%s'", name);
2069 objsize = s.st_size;
2070 object = (unsigned) mmap (0, objsize, PROT_READ|PROT_WRITE, MAP_PRIVATE,
2073 fatal ("unable to mmap file '%s'", name);
2078 /* Helpers for locatelib. */
2080 static char *libname;
2086 return (strncmp (libname, d->d_name, strlen (libname)) == 0);
2089 /* If one file has an additional numeric extension past LIBNAME, then put
2090 that one first in the sort. If both files have additional numeric
2091 extensions, then put the one with the higher number first in the sort.
2093 We must verify that the extension is numeric, because Sun saves the
2094 original versions of patched libraries with a .FCS extension. Files with
2095 invalid extensions must go last in the sort, so that they won't be used. */
2099 struct direct **d1, **d2;
2101 int i1, i2 = strlen (libname);
2102 char *e1 = (*d1)->d_name + i2;
2103 char *e2 = (*d2)->d_name + i2;
2105 while (*e1 && *e2 && *e1 == '.' && *e2 == '.'
2106 && e1[1] && isdigit (e1[1]) && e2[1] && isdigit (e2[1]))
2110 i1 = strtol (e1, &e1, 10);
2111 i2 = strtol (e2, &e2, 10);
2118 /* It has a valid numeric extension, prefer this one. */
2119 if (*e1 == '.' && e1[1] && isdigit (e1[1]))
2121 /* It has a invalid numeric extension, must prefer the other one. */
2127 /* It has a valid numeric extension, prefer this one. */
2128 if (*e2 == '.' && e2[1] && isdigit (e2[1]))
2130 /* It has a invalid numeric extension, must prefer the other one. */
2138 /* Given the name NAME of a dynamic dependency, find its pathname and add
2139 it to the list of libraries. */
2147 char buf[MAXPATHLEN];
2155 /* counting elements in array, need 1 extra for null */
2157 ld_rules = (char *) (ld_2->ld_rules + code);
2161 for (; *ld_rules != 0; ld_rules++)
2162 if (*ld_rules == ':')
2164 ld_rules = (char *) (ld_2->ld_rules + code);
2165 ldr = (char *) malloc (strlen (ld_rules) + 1);
2166 strcpy (ldr, ld_rules);
2168 p = getenv ("LD_LIBRARY_PATH");
2173 for (q = p ; *q != 0; q++)
2176 q = (char *) malloc (strlen (p) + 1);
2179 l = (char **) malloc ((cnt + 3) * sizeof (char *));
2184 for (; *ldr != 0; ldr++)
2194 for (; *q != 0; q++)
2201 /* built in directories are /lib, /usr/lib, and /usr/local/lib */
2204 *pp++ = "/usr/local/lib";
2208 for (pp = l; *pp != 0 ; pp++)
2210 struct direct **namelist;
2212 if ((entries = scandir (*pp, &namelist, libselect, libcompare)) > 0)
2214 sprintf (buf, "%s/%s", *pp, namelist[entries - 1]->d_name);
2215 add_to_list (&libraries, buf);
2217 fprintf (stderr, "%s\n", buf);
2224 fprintf (stderr, "not found\n");
2226 fatal ("dynamic dependency %s not found", name);
2230 /* Scan the _DYNAMIC structure of the output file to find shared libraries
2231 that it depends upon and any constructors or destructors they contain. */
2234 scan_libraries (prog_name)
2237 struct exec *header;
2239 struct link_object *lo;
2240 char buff[MAXPATHLEN];
2243 mapfile (prog_name);
2244 header = (struct exec *)object;
2245 if (N_BADMAG (*header))
2246 fatal ("bad magic number in file '%s'", prog_name);
2247 if (header->a_dynamic == 0)
2250 code = (char *) (N_TXTOFF (*header) + (long) header);
2251 data = (char *) (N_DATOFF (*header) + (long) header);
2252 symtab = (struct nlist *) (N_SYMOFF (*header) + (long) header);
2254 if (header->a_magic == ZMAGIC && header->a_entry == 0x20)
2257 ld = (struct link_dynamic *) (symtab->n_value + code);
2263 ld = (struct link_dynamic *) data;
2268 fprintf (stderr, "dynamic dependencies.\n");
2270 ld_2 = (struct link_dynamic_2 *) ((long) ld->ld_un.ld_2 + (long)base);
2271 for (lo = (struct link_object *) ld_2->ld_need; lo;
2272 lo = (struct link_object *) lo->lo_next)
2275 lo = (struct link_object *) ((long) lo + code);
2276 name = (char *) (code + lo->lo_name);
2280 fprintf (stderr, "\t-l%s.%d => ", name, lo->lo_major);
2281 sprintf (buff, "lib%s.so.%d.%d", name, lo->lo_major, lo->lo_minor);
2287 fprintf (stderr, "\t%s\n", name);
2288 add_to_list (&libraries, name);
2293 fprintf (stderr, "\n");
2295 /* now iterate through the library list adding their symbols to
2297 for (list = libraries.first; list; list = list->next)
2298 scan_prog_file (list->name, PASS_LIB);
2301 #else /* SUNOS4_SHARED_LIBRARIES */
2304 /* Use the List Dynamic Dependencies program to find shared libraries that
2305 the output file depends upon and their initialization/finalization
2306 routines, if any. */
2309 scan_libraries (prog_name)
2312 static struct head libraries; /* list of shared libraries found */
2314 void (*int_handler) ();
2315 void (*quit_handler) ();
2323 /* If we don't have an `ldd', complain. */
2324 if (ldd_file_name == 0)
2326 error ("cannot find `ldd'");
2330 ldd_argv[argc++] = ldd_file_name;
2331 ldd_argv[argc++] = prog_name;
2332 ldd_argv[argc++] = (char *) 0;
2334 if (pipe (pipe_fd) < 0)
2335 fatal_perror ("pipe");
2337 inf = fdopen (pipe_fd[0], "r");
2338 if (inf == (FILE *) 0)
2339 fatal_perror ("fdopen");
2341 /* Trace if needed. */
2347 for (p_argv = &ldd_argv[0]; (str = *p_argv) != (char *) 0; p_argv++)
2348 fprintf (stderr, " %s", str);
2350 fprintf (stderr, "\n");
2356 /* Spawn child ldd on pipe */
2361 fatal_perror ("fork");
2363 fatal_perror ("vfork");
2367 if (pid == 0) /* child context */
2370 if (dup2 (pipe_fd[1], 1) < 0)
2371 fatal_perror ("dup2 (%d, 1)", pipe_fd[1]);
2373 if (close (pipe_fd[0]) < 0)
2374 fatal_perror ("close (%d)", pipe_fd[0]);
2376 if (close (pipe_fd[1]) < 0)
2377 fatal_perror ("close (%d)", pipe_fd[1]);
2379 execv (ldd_file_name, ldd_argv);
2380 fatal_perror ("executing %s", ldd_file_name);
2383 /* Parent context from here on. */
2384 int_handler = (void (*) ()) signal (SIGINT, SIG_IGN);
2386 quit_handler = (void (*) ()) signal (SIGQUIT, SIG_IGN);
2389 if (close (pipe_fd[1]) < 0)
2390 fatal_perror ("close (%d)", pipe_fd[1]);
2393 fprintf (stderr, "\nldd output with constructors/destructors.\n");
2395 /* Read each line of ldd output. */
2396 while (fgets (buf, sizeof buf, inf) != (char *) 0)
2399 char *name, *end, *p = buf;
2401 /* Extract names of libraries and add to list. */
2402 PARSE_LDD_OUTPUT (p);
2407 if (strncmp (name, "not found", sizeof ("not found") - 1) == 0)
2408 fatal ("dynamic dependency %s not found", buf);
2410 /* Find the end of the symbol name. */
2412 (ch2 = *end) != '\0' && ch2 != '\n' && !isspace (ch2) && ch2 != '|';
2417 if (access (name, R_OK) == 0)
2418 add_to_list (&libraries, name);
2420 fatal ("unable to open dynamic dependency '%s'", buf);
2423 fprintf (stderr, "\t%s\n", buf);
2426 fprintf (stderr, "\n");
2428 if (fclose (inf) != 0)
2429 fatal_perror ("fclose of pipe");
2431 do_wait (ldd_file_name);
2433 signal (SIGINT, int_handler);
2435 signal (SIGQUIT, quit_handler);
2438 /* now iterate through the library list adding their symbols to
2440 for (list = libraries.first; list; list = list->next)
2441 scan_prog_file (list->name, PASS_LIB);
2444 #endif /* LDD_SUFFIX */
2445 #endif /* SUNOS4_SHARED_LIBRARIES */
2447 #endif /* OBJECT_FORMAT_NONE */
2451 * COFF specific stuff.
2454 #ifdef OBJECT_FORMAT_COFF
2456 #if defined(EXTENDED_COFF)
2457 # define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax)
2458 # define GCC_SYMENT SYMR
2459 # define GCC_OK_SYMBOL(X) ((X).st == stProc && (X).sc == scText)
2460 # define GCC_SYMINC(X) (1)
2461 # define GCC_SYMZERO(X) (SYMHEADER(X).isymMax)
2462 # define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0)
2464 # define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms)
2465 # define GCC_SYMENT SYMENT
2466 # define GCC_OK_SYMBOL(X) \
2467 (((X).n_sclass == C_EXT) && \
2468 (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) || \
2469 ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))
2470 # define GCC_SYMINC(X) ((X).n_numaux+1)
2471 # define GCC_SYMZERO(X) 0
2472 # define GCC_CHECK_HDR(X) (1)
2475 extern char *ldgetname ();
2477 /* COFF version to scan the name list of the loaded program for
2478 the symbols g++ uses for static constructors and destructors.
2480 The constructor table begins at __CTOR_LIST__ and contains a count
2481 of the number of pointers (or -1 if the constructors are built in a
2482 separate section by the linker), followed by the pointers to the
2483 constructor functions, terminated with a null pointer. The
2484 destructor table has the same format, and begins at __DTOR_LIST__. */
2487 scan_prog_file (prog_name, which_pass)
2489 enum pass which_pass;
2491 LDFILE *ldptr = NULL;
2492 int sym_index, sym_count;
2494 if (which_pass != PASS_FIRST && which_pass != PASS_OBJ)
2497 if ((ldptr = ldopen (prog_name, ldptr)) == NULL)
2498 fatal ("%s: can't open as COFF file", prog_name);
2500 if (!MY_ISCOFF (HEADER (ldptr).f_magic))
2501 fatal ("%s: not a COFF file", prog_name);
2503 if (GCC_CHECK_HDR (ldptr))
2505 sym_count = GCC_SYMBOLS (ldptr);
2506 sym_index = GCC_SYMZERO (ldptr);
2507 while (sym_index < sym_count)
2511 if (ldtbread (ldptr, sym_index, &symbol) <= 0)
2513 sym_index += GCC_SYMINC (symbol);
2515 if (GCC_OK_SYMBOL (symbol))
2519 if ((name = ldgetname (ldptr, &symbol)) == NULL)
2520 continue; /* should never happen */
2522 #ifdef XCOFF_DEBUGGING_INFO
2523 /* All AIX function names have a duplicate entry beginning
2529 switch (is_ctor_dtor (name))
2532 add_to_list (&constructors, name);
2533 if (which_pass == PASS_OBJ)
2534 add_to_list (&exports, name);
2538 add_to_list (&destructors, name);
2539 if (which_pass == PASS_OBJ)
2540 add_to_list (&exports, name);
2543 default: /* not a constructor or destructor */
2547 #if !defined(EXTENDED_COFF)
2549 fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n",
2550 symbol.n_scnum, symbol.n_sclass,
2551 (symbol.n_type ? "0" : ""), symbol.n_type,
2555 fprintf (stderr, "\tiss = %5d, value = %5d, index = %5d, name = %s\n",
2556 symbol.iss, symbol.value, symbol.index, name);
2562 (void) ldclose(ldptr);
2565 #ifdef XCOFF_SCAN_LIBS
2566 /* Scan imported AIX libraries for GCC static ctors and dtors.
2567 FIXME: it is possible to link an executable without the actual import
2568 library by using an "import file" - a text file listing symbols
2569 exported by a library. To support this, we would have to scan
2570 import files as well as actual shared binaries to find GCC ctors.
2571 TODO: use memory mapping instead of 'ld' routines, files are already
2572 memory mapped, but we could eliminate the extra in-memory copies.
2573 Is it worth the effort? */
2576 scan_libraries (prog_name)
2581 static struct path_prefix libpath; /* we should only do this once */
2583 if ((ldptr = ldopen (prog_name, ldptr)) == NULL)
2584 fatal ("%s: can't open as COFF file", prog_name);
2586 if (!MY_ISCOFF (HEADER (ldptr).f_magic))
2587 fatal ("%s: not a COFF file", prog_name);
2589 /* find and read loader section */
2590 if (ldnshread (ldptr, _LOADER, &ldsh))
2596 FSEEK (ldptr, ldsh.s_scnptr, BEGINNING);
2597 FREAD (&ldh, sizeof (ldh), 1, ldptr);
2598 /* read import library list */
2599 impbuf = alloca (ldh.l_istlen);
2600 FSEEK (ldptr, ldh.l_impoff + ldsh.s_scnptr, BEGINNING);
2601 FREAD (impbuf, ldh.l_istlen, 1, ldptr);
2604 fprintf (stderr, "LIBPATH=%s\n", impbuf);
2605 prefix_from_string (impbuf, &libpath);
2607 /* skip LIBPATH and empty base and member fields */
2608 impbuf += strlen (impbuf) + 3;
2609 for (entry = 1; entry < ldh.l_nimpid; ++entry)
2611 char *impath = impbuf;
2612 char *implib = impath + strlen (impath) + 1;
2613 char *impmem = implib + strlen (implib) + 1;
2614 char *soname = NULL;
2617 LDFILE *libptr = NULL;
2618 struct prefix_list *pl;
2621 impbuf = impmem + strlen (impmem) + 1;
2623 fprintf (stderr, "PATH+BASE=%s%s\n", impath, implib);
2624 /* Skip AIX kernel exports */
2625 if (*impath == '/' && *(impath+1) == '\0'
2626 && strcmp (implib, "unix") == 0)
2628 pathlen = strlen (impath);
2629 trial = alloca (MAX (pathlen + 1, libpath.max_len)
2630 + strlen (implib) + 1);
2633 strcpy (trial, impath);
2634 if (impath[pathlen - 1] != '/')
2635 trial[pathlen++] = '/';
2636 strcpy (trial + pathlen, implib);
2637 if (access (trial, R_OK) == 0)
2641 for (pl = libpath.plist; pl; pl = pl->next)
2643 strcpy (trial, pl->prefix);
2644 strcat (trial, implib);
2645 if (access (trial, R_OK) == 0)
2653 fatal ("%s: library not found", implib);
2656 fprintf (stderr, "%s (%s)\n", soname, impmem);
2658 fprintf (stderr, "%s\n", soname);
2662 /* scan imported shared objects for GCC GLOBAL ctors */
2664 if ((libptr = ldopen (soname, libptr)) == NULL)
2665 fatal ("%s: can't open import library", soname);
2666 if (TYPE (libptr) == ARTYPE)
2670 fatal ("%s: no archive member specified", soname);
2671 ldahread (libptr, &ah);
2672 if (strcmp (ah.ar_name, impmem))
2675 type = HEADER (libptr).f_magic;
2676 if (HEADER (libptr).f_flags & F_SHROBJ)
2683 if (!ldnshread (libptr, _LOADER, &soldsh))
2684 fatal ("%s: not an import library", soname);
2685 FSEEK (libptr, soldsh.s_scnptr, BEGINNING);
2686 if (FREAD (&soldh, sizeof (soldh), 1, libptr) != 1)
2687 fatal ("%s: can't read loader section", soname);
2688 /*fprintf (stderr, "\tscanning %s\n", soname);*/
2689 symcnt = soldh.l_nsyms;
2690 lsyms = (LDSYM*) alloca (symcnt * sizeof (*lsyms));
2691 symcnt = FREAD (lsyms, sizeof (*lsyms), symcnt, libptr);
2692 ldstrings = alloca (soldh.l_stlen);
2693 FSEEK (libptr, soldsh.s_scnptr+soldh.l_stoff, BEGINNING);
2694 FREAD (ldstrings, soldh.l_stlen, 1, libptr);
2695 for (i = 0; i < symcnt; ++i)
2697 LDSYM *l = lsyms + i;
2698 if (LDR_EXPORT (*l))
2702 expname = l->l_name;
2703 else if (l->l_offset < soldh.l_stlen)
2704 expname = ldstrings + l->l_offset;
2705 switch (is_ctor_dtor (expname))
2709 fprintf (stderr, "\t%s\n", expname);
2710 add_to_list (&constructors, expname);
2714 add_to_list (&destructors, expname);
2717 default: /* not a constructor or destructor */
2724 fprintf (stderr, "%s: type = %04X flags = %04X\n",
2725 ah.ar_name, type, HEADER (libptr).f_flags);
2727 while (ldclose (libptr) == FAILURE);
2728 /* printf (stderr, "closed %s\n", soname); */
2732 #endif /* XCOFF_SCAN_LIBS */
2734 #endif /* OBJECT_FORMAT_COFF */
2738 * OSF/rose specific stuff.
2741 #ifdef OBJECT_FORMAT_ROSE
2743 /* Union of the various load commands */
2745 typedef union load_union
2747 ldc_header_t hdr; /* common header */
2748 load_cmd_map_command_t map; /* map indexing other load cmds */
2749 interpreter_command_t iprtr; /* interpreter pathname */
2750 strings_command_t str; /* load commands strings section */
2751 region_command_t region; /* region load command */
2752 reloc_command_t reloc; /* relocation section */
2753 package_command_t pkg; /* package load command */
2754 symbols_command_t sym; /* symbol sections */
2755 entry_command_t ent; /* program start section */
2756 gen_info_command_t info; /* object information */
2757 func_table_command_t func; /* function constructors/destructors */
2760 /* Structure to point to load command and data section in memory. */
2762 typedef struct load_all
2764 load_union_t *load; /* load command */
2765 char *section; /* pointer to section */
2768 /* Structure to contain information about a file mapped into memory. */
2772 char *start; /* start of map */
2773 char *name; /* filename */
2774 long size; /* size of the file */
2775 long rounded_size; /* size rounded to page boundary */
2776 int fd; /* file descriptor */
2777 int rw; /* != 0 if opened read/write */
2778 int use_mmap; /* != 0 if mmap'ed */
2781 extern int decode_mach_o_hdr ();
2782 extern int encode_mach_o_hdr ();
2784 static void add_func_table PROTO((mo_header_t *, load_all_t *,
2785 symbol_info_t *, int));
2786 static void print_header PROTO((mo_header_t *));
2787 static void print_load_command PROTO((load_union_t*, size_t, int));
2788 static void bad_header PROTO((int));
2789 static struct file_info *read_file PROTO((char *, int, int));
2790 static void end_file PROTO((struct file_info *));
2792 /* OSF/rose specific version to scan the name list of the loaded
2793 program for the symbols g++ uses for static constructors and
2796 The constructor table begins at __CTOR_LIST__ and contains a count
2797 of the number of pointers (or -1 if the constructors are built in a
2798 separate section by the linker), followed by the pointers to the
2799 constructor functions, terminated with a null pointer. The
2800 destructor table has the same format, and begins at __DTOR_LIST__. */
2803 scan_prog_file (prog_name, which_pass)
2805 enum pass which_pass;
2809 load_all_t *load_array;
2810 load_all_t *load_end;
2811 load_all_t *load_cmd;
2812 int symbol_load_cmds;
2818 struct file_info *obj_file;
2820 mo_lcid_t cmd_strings = -1;
2821 symbol_info_t *main_sym = 0;
2822 int rw = (which_pass != PASS_FIRST);
2824 prog_fd = open (prog_name, (rw) ? O_RDWR : O_RDONLY);
2826 fatal_perror ("can't read %s", prog_name);
2828 obj_file = read_file (prog_name, prog_fd, rw);
2829 obj = obj_file->start;
2831 status = decode_mach_o_hdr (obj, MO_SIZEOF_RAW_HDR, MOH_HEADER_VERSION, &hdr);
2832 if (status != MO_HDR_CONV_SUCCESS)
2833 bad_header (status);
2836 /* Do some basic sanity checks. Note we explicitly use the big endian magic number,
2837 since the hardware will automatically swap bytes for us on loading little endian
2840 #ifndef CROSS_COMPILE
2841 if (hdr.moh_magic != MOH_MAGIC_MSB
2842 || hdr.moh_header_version != MOH_HEADER_VERSION
2843 || hdr.moh_byte_order != OUR_BYTE_ORDER
2844 || hdr.moh_data_rep_id != OUR_DATA_REP_ID
2845 || hdr.moh_cpu_type != OUR_CPU_TYPE
2846 || hdr.moh_cpu_subtype != OUR_CPU_SUBTYPE
2847 || hdr.moh_vendor_type != OUR_VENDOR_TYPE)
2849 fatal ("incompatibilities between object file & expected values");
2854 print_header (&hdr);
2856 offset = hdr.moh_first_cmd_off;
2857 load_end = load_array
2858 = (load_all_t *) xcalloc (sizeof (load_all_t), hdr.moh_n_load_cmds + 2);
2860 /* Build array of load commands, calculating the offsets */
2861 for (i = 0; i < hdr.moh_n_load_cmds; i++)
2863 load_union_t *load_hdr; /* load command header */
2865 load_cmd = load_end++;
2866 load_hdr = (load_union_t *) (obj + offset);
2868 /* If modifying the program file, copy the header. */
2871 load_union_t *ptr = (load_union_t *) xmalloc (load_hdr->hdr.ldci_cmd_size);
2872 bcopy ((char *)load_hdr, (char *)ptr, load_hdr->hdr.ldci_cmd_size);
2875 /* null out old command map, because we will rewrite at the end. */
2876 if (ptr->hdr.ldci_cmd_type == LDC_CMD_MAP)
2878 cmd_strings = ptr->map.lcm_ld_cmd_strings;
2879 ptr->hdr.ldci_cmd_type = LDC_UNDEFINED;
2883 load_cmd->load = load_hdr;
2884 if (load_hdr->hdr.ldci_section_off > 0)
2885 load_cmd->section = obj + load_hdr->hdr.ldci_section_off;
2888 print_load_command (load_hdr, offset, i);
2890 offset += load_hdr->hdr.ldci_cmd_size;
2893 /* If the last command is the load command map and is not undefined,
2894 decrement the count of load commands. */
2895 if (rw && load_end[-1].load->hdr.ldci_cmd_type == LDC_UNDEFINED)
2898 hdr.moh_n_load_cmds--;
2901 /* Go through and process each symbol table section. */
2902 symbol_load_cmds = 0;
2903 for (load_cmd = load_array; load_cmd < load_end; load_cmd++)
2905 load_union_t *load_hdr = load_cmd->load;
2907 if (load_hdr->hdr.ldci_cmd_type == LDC_SYMBOLS)
2913 char *kind = "unknown";
2915 switch (load_hdr->sym.symc_kind)
2917 case SYMC_IMPORTS: kind = "imports"; break;
2918 case SYMC_DEFINED_SYMBOLS: kind = "defined"; break;
2919 case SYMC_STABS: kind = "stabs"; break;
2922 fprintf (stderr, "\nProcessing symbol table #%d, offset = 0x%.8lx, kind = %s\n",
2923 symbol_load_cmds, load_hdr->hdr.ldci_section_off, kind);
2926 if (load_hdr->sym.symc_kind != SYMC_DEFINED_SYMBOLS)
2929 str_sect = load_array[load_hdr->sym.symc_strings_section].section;
2930 if (str_sect == (char *)0)
2931 fatal ("string section missing");
2933 if (load_cmd->section == (char *)0)
2934 fatal ("section pointer missing");
2936 num_syms = load_hdr->sym.symc_nentries;
2937 for (i = 0; i < num_syms; i++)
2939 symbol_info_t *sym = ((symbol_info_t *) load_cmd->section) + i;
2940 char *name = sym->si_name.symbol_name + str_sect;
2947 char *n = name + strlen (name) - strlen (NAME__MAIN);
2949 if ((n - name) < 0 || strcmp (n, NAME__MAIN))
2959 switch (is_ctor_dtor (name))
2962 add_to_list (&constructors, name);
2966 add_to_list (&destructors, name);
2969 default: /* not a constructor or destructor */
2975 fprintf (stderr, "\ttype = 0x%.4x, sc = 0x%.2x, flags = 0x%.8x, name = %.30s\n",
2976 sym->si_type, sym->si_sc_type, sym->si_flags, name);
2981 if (symbol_load_cmds == 0)
2982 fatal ("no symbol table found");
2984 /* Update the program file now, rewrite header and load commands. At present,
2985 we assume that there is enough space after the last load command to insert
2986 one more. Since the first section written out is page aligned, and the
2987 number of load commands is small, this is ok for the present. */
2991 load_union_t *load_map;
2994 if (cmd_strings == -1)
2995 fatal ("no cmd_strings found");
2997 /* Add __main to initializer list.
2998 If we are building a program instead of a shared library, don't
2999 do anything, since in the current version, you cannot do mallocs
3000 and such in the constructors. */
3002 if (main_sym != (symbol_info_t *)0
3003 && ((hdr.moh_flags & MOH_EXECABLE_F) == 0))
3004 add_func_table (&hdr, load_array, main_sym, FNTC_INITIALIZATION);
3007 fprintf (stderr, "\nUpdating header and load commands.\n\n");
3009 hdr.moh_n_load_cmds++;
3010 size = sizeof (load_cmd_map_command_t) + (sizeof (mo_offset_t) * (hdr.moh_n_load_cmds - 1));
3012 /* Create new load command map. */
3014 fprintf (stderr, "load command map, %d cmds, new size %ld.\n",
3015 (int)hdr.moh_n_load_cmds, (long)size);
3017 load_map = (load_union_t *) xcalloc (1, size);
3018 load_map->map.ldc_header.ldci_cmd_type = LDC_CMD_MAP;
3019 load_map->map.ldc_header.ldci_cmd_size = size;
3020 load_map->map.lcm_ld_cmd_strings = cmd_strings;
3021 load_map->map.lcm_nentries = hdr.moh_n_load_cmds;
3022 load_array[hdr.moh_n_load_cmds-1].load = load_map;
3024 offset = hdr.moh_first_cmd_off;
3025 for (i = 0; i < hdr.moh_n_load_cmds; i++)
3027 load_map->map.lcm_map[i] = offset;
3028 if (load_array[i].load->hdr.ldci_cmd_type == LDC_CMD_MAP)
3029 hdr.moh_load_map_cmd_off = offset;
3031 offset += load_array[i].load->hdr.ldci_cmd_size;
3034 hdr.moh_sizeofcmds = offset - MO_SIZEOF_RAW_HDR;
3037 print_header (&hdr);
3040 status = encode_mach_o_hdr (&hdr, obj, MO_SIZEOF_RAW_HDR);
3041 if (status != MO_HDR_CONV_SUCCESS)
3042 bad_header (status);
3045 fprintf (stderr, "writing load commands.\n\n");
3047 /* Write load commands */
3048 offset = hdr.moh_first_cmd_off;
3049 for (i = 0; i < hdr.moh_n_load_cmds; i++)
3051 load_union_t *load_hdr = load_array[i].load;
3052 size_t size = load_hdr->hdr.ldci_cmd_size;
3055 print_load_command (load_hdr, offset, i);
3057 bcopy ((char *)load_hdr, (char *)(obj + offset), size);
3062 end_file (obj_file);
3064 if (close (prog_fd))
3065 fatal_perror ("closing %s", prog_name);
3068 fprintf (stderr, "\n");
3072 /* Add a function table to the load commands to call a function
3073 on initiation or termination of the process. */
3076 add_func_table (hdr_p, load_array, sym, type)
3077 mo_header_t *hdr_p; /* pointer to global header */
3078 load_all_t *load_array; /* array of ptrs to load cmds */
3079 symbol_info_t *sym; /* pointer to symbol entry */
3080 int type; /* fntc_type value */
3082 /* Add a new load command. */
3083 int num_cmds = ++hdr_p->moh_n_load_cmds;
3084 int load_index = num_cmds - 1;
3085 size_t size = sizeof (func_table_command_t) + sizeof (mo_addr_t);
3086 load_union_t *ptr = xcalloc (1, size);
3087 load_all_t *load_cmd;
3090 /* Set the unresolved address bit in the header to force the loader to be
3091 used, since kernel exec does not call the initialization functions. */
3092 hdr_p->moh_flags |= MOH_UNRESOLVED_F;
3094 load_cmd = &load_array[load_index];
3095 load_cmd->load = ptr;
3096 load_cmd->section = (char *)0;
3098 /* Fill in func table load command. */
3099 ptr->func.ldc_header.ldci_cmd_type = LDC_FUNC_TABLE;
3100 ptr->func.ldc_header.ldci_cmd_size = size;
3101 ptr->func.ldc_header.ldci_section_off = 0;
3102 ptr->func.ldc_header.ldci_section_len = 0;
3103 ptr->func.fntc_type = type;
3104 ptr->func.fntc_nentries = 1;
3106 /* copy address, turn it from abs. address to (region,offset) if necessary. */
3107 /* Is the symbol already expressed as (region, offset)? */
3108 if ((sym->si_flags & SI_ABSOLUTE_VALUE_F) == 0)
3110 ptr->func.fntc_entry_loc[i].adr_lcid = sym->si_value.def_val.adr_lcid;
3111 ptr->func.fntc_entry_loc[i].adr_sctoff = sym->si_value.def_val.adr_sctoff;
3114 /* If not, figure out which region it's in. */
3117 mo_vm_addr_t addr = sym->si_value.abs_val;
3120 for (i = 0; i < load_index; i++)
3122 if (load_array[i].load->hdr.ldci_cmd_type == LDC_REGION)
3124 region_command_t *region_ptr = &load_array[i].load->region;
3126 if ((region_ptr->regc_flags & REG_ABS_ADDR_F) != 0
3127 && addr >= region_ptr->regc_addr.vm_addr
3128 && addr <= region_ptr->regc_addr.vm_addr + region_ptr->regc_vm_size)
3130 ptr->func.fntc_entry_loc[0].adr_lcid = i;
3131 ptr->func.fntc_entry_loc[0].adr_sctoff = addr - region_ptr->regc_addr.vm_addr;
3139 fatal ("could not convert 0x%l.8x into a region", addr);
3144 "%s function, region %d, offset = %ld (0x%.8lx)\n",
3145 (type == FNTC_INITIALIZATION) ? "init" : "term",
3146 (int)ptr->func.fntc_entry_loc[i].adr_lcid,
3147 (long)ptr->func.fntc_entry_loc[i].adr_sctoff,
3148 (long)ptr->func.fntc_entry_loc[i].adr_sctoff);
3153 /* Print the global header for an OSF/rose object. */
3156 print_header (hdr_ptr)
3157 mo_header_t *hdr_ptr;
3159 fprintf (stderr, "\nglobal header:\n");
3160 fprintf (stderr, "\tmoh_magic = 0x%.8lx\n", hdr_ptr->moh_magic);
3161 fprintf (stderr, "\tmoh_major_version = %d\n", (int)hdr_ptr->moh_major_version);
3162 fprintf (stderr, "\tmoh_minor_version = %d\n", (int)hdr_ptr->moh_minor_version);
3163 fprintf (stderr, "\tmoh_header_version = %d\n", (int)hdr_ptr->moh_header_version);
3164 fprintf (stderr, "\tmoh_max_page_size = %d\n", (int)hdr_ptr->moh_max_page_size);
3165 fprintf (stderr, "\tmoh_byte_order = %d\n", (int)hdr_ptr->moh_byte_order);
3166 fprintf (stderr, "\tmoh_data_rep_id = %d\n", (int)hdr_ptr->moh_data_rep_id);
3167 fprintf (stderr, "\tmoh_cpu_type = %d\n", (int)hdr_ptr->moh_cpu_type);
3168 fprintf (stderr, "\tmoh_cpu_subtype = %d\n", (int)hdr_ptr->moh_cpu_subtype);
3169 fprintf (stderr, "\tmoh_vendor_type = %d\n", (int)hdr_ptr->moh_vendor_type);
3170 fprintf (stderr, "\tmoh_load_map_cmd_off = %d\n", (int)hdr_ptr->moh_load_map_cmd_off);
3171 fprintf (stderr, "\tmoh_first_cmd_off = %d\n", (int)hdr_ptr->moh_first_cmd_off);
3172 fprintf (stderr, "\tmoh_sizeofcmds = %d\n", (int)hdr_ptr->moh_sizeofcmds);
3173 fprintf (stderr, "\tmon_n_load_cmds = %d\n", (int)hdr_ptr->moh_n_load_cmds);
3174 fprintf (stderr, "\tmoh_flags = 0x%.8lx", (long)hdr_ptr->moh_flags);
3176 if (hdr_ptr->moh_flags & MOH_RELOCATABLE_F)
3177 fprintf (stderr, ", relocatable");
3179 if (hdr_ptr->moh_flags & MOH_LINKABLE_F)
3180 fprintf (stderr, ", linkable");
3182 if (hdr_ptr->moh_flags & MOH_EXECABLE_F)
3183 fprintf (stderr, ", execable");
3185 if (hdr_ptr->moh_flags & MOH_EXECUTABLE_F)
3186 fprintf (stderr, ", executable");
3188 if (hdr_ptr->moh_flags & MOH_UNRESOLVED_F)
3189 fprintf (stderr, ", unresolved");
3191 fprintf (stderr, "\n\n");
3196 /* Print a short summary of a load command. */
3199 print_load_command (load_hdr, offset, number)
3200 load_union_t *load_hdr;
3204 mo_long_t type = load_hdr->hdr.ldci_cmd_type;
3205 char *type_str = (char *)0;
3209 case LDC_UNDEFINED: type_str = "UNDEFINED"; break;
3210 case LDC_CMD_MAP: type_str = "CMD_MAP"; break;
3211 case LDC_INTERPRETER: type_str = "INTERPRETER"; break;
3212 case LDC_STRINGS: type_str = "STRINGS"; break;
3213 case LDC_REGION: type_str = "REGION"; break;
3214 case LDC_RELOC: type_str = "RELOC"; break;
3215 case LDC_PACKAGE: type_str = "PACKAGE"; break;
3216 case LDC_SYMBOLS: type_str = "SYMBOLS"; break;
3217 case LDC_ENTRY: type_str = "ENTRY"; break;
3218 case LDC_FUNC_TABLE: type_str = "FUNC_TABLE"; break;
3219 case LDC_GEN_INFO: type_str = "GEN_INFO"; break;
3223 "cmd %2d, sz: 0x%.2lx, coff: 0x%.3lx, doff: 0x%.6lx, dlen: 0x%.6lx",
3225 (long) load_hdr->hdr.ldci_cmd_size,
3227 (long) load_hdr->hdr.ldci_section_off,
3228 (long) load_hdr->hdr.ldci_section_len);
3230 if (type_str == (char *)0)
3231 fprintf (stderr, ", ty: unknown (%ld)\n", (long) type);
3233 else if (type != LDC_REGION)
3234 fprintf (stderr, ", ty: %s\n", type_str);
3239 switch (load_hdr->region.regc_usage_type)
3241 case REG_TEXT_T: region = ", .text"; break;
3242 case REG_DATA_T: region = ", .data"; break;
3243 case REG_BSS_T: region = ", .bss"; break;
3244 case REG_GLUE_T: region = ", .glue"; break;
3245 #if defined (REG_RDATA_T) && defined (REG_SDATA_T) && defined (REG_SBSS_T) /*mips*/
3246 case REG_RDATA_T: region = ", .rdata"; break;
3247 case REG_SDATA_T: region = ", .sdata"; break;
3248 case REG_SBSS_T: region = ", .sbss"; break;
3252 fprintf (stderr, ", ty: %s, vaddr: 0x%.8lx, vlen: 0x%.6lx%s\n",
3254 (long) load_hdr->region.regc_vm_addr,
3255 (long) load_hdr->region.regc_vm_size,
3263 /* Fatal error when {en,de}code_mach_o_header fails. */
3269 char *msg = (char *)0;
3273 case MO_ERROR_BAD_MAGIC: msg = "bad magic number"; break;
3274 case MO_ERROR_BAD_HDR_VERS: msg = "bad header version"; break;
3275 case MO_ERROR_BAD_RAW_HDR_VERS: msg = "bad raw header version"; break;
3276 case MO_ERROR_BUF2SML: msg = "raw header buffer too small"; break;
3277 case MO_ERROR_OLD_RAW_HDR_FILE: msg = "old raw header file"; break;
3278 case MO_ERROR_UNSUPPORTED_VERS: msg = "unsupported version"; break;
3281 if (msg == (char *)0)
3282 fatal ("unknown {de,en}code_mach_o_hdr return value %d", status);
3288 /* Read a file into a memory buffer. */
3290 static struct file_info *
3291 read_file (name, fd, rw)
3292 char *name; /* filename */
3293 int fd; /* file descriptor */
3294 int rw; /* read/write */
3296 struct stat stat_pkt;
3297 struct file_info *p = (struct file_info *) xcalloc (sizeof (struct file_info), 1);
3299 static int page_size;
3302 if (fstat (fd, &stat_pkt) < 0)
3303 fatal_perror ("fstat %s", name);
3306 p->size = stat_pkt.st_size;
3307 p->rounded_size = stat_pkt.st_size;
3313 fprintf (stderr, "mmap %s, %s\n", name, (rw) ? "read/write" : "read-only");
3316 page_size = sysconf (_SC_PAGE_SIZE);
3318 p->rounded_size = ((p->size + page_size - 1) / page_size) * page_size;
3319 p->start = mmap ((caddr_t)0,
3320 (rw) ? p->rounded_size : p->size,
3321 (rw) ? (PROT_READ | PROT_WRITE) : PROT_READ,
3322 MAP_FILE | MAP_VARIABLE | MAP_SHARED,
3326 if (p->start != (char *)0 && p->start != (char *)-1)
3330 #endif /* USE_MMAP */
3335 fprintf (stderr, "read %s\n", name);
3338 p->start = xmalloc (p->size);
3339 if (lseek (fd, 0L, SEEK_SET) < 0)
3340 fatal_perror ("lseek to 0 on %s", name);
3342 len = read (fd, p->start, p->size);
3344 fatal_perror ("read %s", name);
3347 fatal ("read %ld bytes, expected %ld, from %s", len, p->size, name);
3353 /* Do anything necessary to write a file back from memory. */
3357 struct file_info *ptr; /* file information block */
3365 fprintf (stderr, "msync %s\n", ptr->name);
3367 if (msync (ptr->start, ptr->rounded_size, MS_ASYNC))
3368 fatal_perror ("msync %s", ptr->name);
3372 fprintf (stderr, "munmap %s\n", ptr->name);
3374 if (munmap (ptr->start, ptr->size))
3375 fatal_perror ("munmap %s", ptr->name);
3378 #endif /* USE_MMAP */
3385 fprintf (stderr, "write %s\n", ptr->name);
3387 if (lseek (ptr->fd, 0L, SEEK_SET) < 0)
3388 fatal_perror ("lseek to 0 on %s", ptr->name);
3390 len = write (ptr->fd, ptr->start, ptr->size);
3392 fatal_perror ("write %s", ptr->name);
3394 if (len != ptr->size)
3395 fatal ("wrote %ld bytes, expected %ld, to %s", len, ptr->size, ptr->name);
3404 #endif /* OBJECT_FORMAT_ROSE */