1 /* Collect static initialization info into data structures that can be
2 traversed by C++ initialization and finalization routines.
3 Copyright (C) 1992, 93-99, 2000 Free Software Foundation, Inc.
4 Contributed by Chris Smith (csmith@convex.com).
5 Heavily modified by Michael Meissner (meissner@cygnus.com),
6 Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com).
8 This file is part of GNU CC.
10 GNU CC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
15 GNU CC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GNU CC; see the file COPYING. If not, write to
22 the Free Software Foundation, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
26 /* Build tables of static constructors and destructors and run ld. */
32 #ifdef vfork /* Autoconf may define this to fork for us. */
33 # define VFORK_STRING "fork"
35 # define VFORK_STRING "vfork"
41 #define vfork() (decc$$alloc_vfork_blocks() >= 0 ? \
42 lib$get_current_invo_context(decc$$get_vfork_jmpbuf()) : -1)
45 #ifndef LIBRARY_PATH_ENV
46 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
56 /* Obstack allocation and deallocation routines. */
57 #define obstack_chunk_alloc xmalloc
58 #define obstack_chunk_free free
60 /* On certain systems, we have code that works by scanning the object file
61 directly. But this code uses system-specific header files and library
62 functions, so turn it off in a cross-compiler. Likewise, the names of
63 the utilities are not correct for a cross-compiler; we have to hope that
64 cross-versions are in the proper directories. */
67 #undef SUNOS4_SHARED_LIBRARIES
68 #undef OBJECT_FORMAT_COFF
69 #undef OBJECT_FORMAT_ROSE
71 #undef REAL_LD_FILE_NAME
72 #undef REAL_NM_FILE_NAME
73 #undef REAL_STRIP_FILE_NAME
76 /* If we cannot use a special method, use the ordinary one:
77 run nm to find what symbols are present.
78 In a cross-compiler, this means you need a cross nm,
79 but that is not quite as unpleasant as special headers. */
81 #if !defined (OBJECT_FORMAT_COFF) && !defined (OBJECT_FORMAT_ROSE)
82 #define OBJECT_FORMAT_NONE
85 #ifdef OBJECT_FORMAT_COFF
94 /* Many versions of ldfcn.h define these. */
102 /* Some systems have an ISCOFF macro, but others do not. In some cases
103 the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines
104 that either do not have an ISCOFF macro in /usr/include or for those
105 where it is wrong. */
108 #define MY_ISCOFF(X) ISCOFF (X)
111 #endif /* OBJECT_FORMAT_COFF */
113 #ifdef OBJECT_FORMAT_ROSE
120 #include <sys/mman.h>
124 #include <mach_o_format.h>
125 #include <mach_o_header.h>
126 #include <mach_o_vals.h>
127 #include <mach_o_types.h>
129 #endif /* OBJECT_FORMAT_ROSE */
131 #ifdef OBJECT_FORMAT_NONE
133 /* Default flags to pass to nm. */
135 #define NM_FLAGS "-n"
138 #endif /* OBJECT_FORMAT_NONE */
140 /* Some systems use __main in a way incompatible with its use in gcc, in these
141 cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
142 give the same symbol without quotes for an alternative entry point. You
143 must define both, or neither. */
145 #define NAME__MAIN "__main"
146 #define SYMBOL__MAIN __main
149 /* This must match tree.h. */
150 #define DEFAULT_INIT_PRIORITY 65535
152 #if defined (LDD_SUFFIX) || SUNOS4_SHARED_LIBRARIES
153 #define SCAN_LIBRARIES
157 int do_collecting
= 1;
159 int do_collecting
= 0;
162 /* Linked lists of constructor and destructor names. */
178 /* Enumeration giving which pass this is for scanning the program file. */
181 PASS_FIRST
, /* without constructors */
182 PASS_OBJ
, /* individual objects */
183 PASS_LIB
, /* looking for shared libraries */
184 PASS_SECOND
/* with constructors linked in */
187 extern char *version_string
;
189 int vflag
; /* true if -v */
190 static int rflag
; /* true if -r */
191 static int strip_flag
; /* true if -s */
192 #ifdef COLLECT_EXPORT_LIST
193 static int export_flag
; /* true if -bE */
194 static int aix64_flag
; /* true if -b64 */
197 int debug
; /* true if -debug */
199 static int shared_obj
; /* true if -shared */
201 static const char *c_file
; /* <xxx>.c for constructor/destructor list. */
202 static const char *o_file
; /* <xxx>.o for constructor/destructor list. */
203 #ifdef COLLECT_EXPORT_LIST
204 static const char *export_file
; /* <xxx>.x for AIX export list. */
205 static const char *import_file
; /* <xxx>.p for AIX import list. */
207 const char *ldout
; /* File for ld errors. */
208 static const char *output_file
; /* Output file for ld. */
209 static const char *nm_file_name
; /* pathname of nm */
211 static const char *ldd_file_name
; /* pathname of ldd (or equivalent) */
213 static const char *strip_file_name
; /* pathname of strip */
214 const char *c_file_name
; /* pathname of gcc */
215 static char *initname
, *fininame
; /* names of init and fini funcs */
217 static struct head constructors
; /* list of constructors found */
218 static struct head destructors
; /* list of destructors found */
219 #ifdef COLLECT_EXPORT_LIST
220 static struct head exports
; /* list of exported symbols */
221 static struct head imports
; /* list of imported symbols */
222 static struct head undefined
; /* list of undefined symbols */
224 static struct head frame_tables
; /* list of frame unwind info tables */
226 struct obstack temporary_obstack
;
227 struct obstack permanent_obstack
;
228 char * temporary_firstobj
;
230 /* Holds the return value of pexecute. */
233 /* Defined in the automatically-generated underscore.c. */
234 extern int prepends_underscore
;
236 #ifndef GET_ENV_PATH_LIST
237 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
240 /* Structure to hold all the directories in which to search for files to
245 const char *prefix
; /* String to prepend to the path. */
246 struct prefix_list
*next
; /* Next in linked list. */
251 struct prefix_list
*plist
; /* List of prefixes to try */
252 int max_len
; /* Max length of a prefix in PLIST */
253 const char *name
; /* Name of this list (used in config stuff) */
256 #ifdef COLLECT_EXPORT_LIST
257 /* Lists to keep libraries to be scanned for global constructors/destructors. */
258 static struct head libs
; /* list of libraries */
259 static struct path_prefix cmdline_lib_dirs
; /* directories specified with -L */
260 static struct path_prefix libpath_lib_dirs
; /* directories in LIBPATH */
261 static struct path_prefix
*libpaths
[3] = {&cmdline_lib_dirs
,
262 &libpath_lib_dirs
, NULL
};
263 static const char *libexts
[3] = {"a", "so", NULL
}; /* possible library extentions */
266 static void handler
PROTO((int));
267 static int is_ctor_dtor
PROTO((const char *));
268 static char *find_a_file
PROTO((struct path_prefix
*, const char *));
269 static void add_prefix
PROTO((struct path_prefix
*, const char *));
270 static void prefix_from_env
PROTO((const char *, struct path_prefix
*));
271 static void prefix_from_string
PROTO((const char *, struct path_prefix
*));
272 static void do_wait
PROTO((const char *));
273 static void fork_execute
PROTO((const char *, char **));
274 static void maybe_unlink
PROTO((const char *));
275 static void add_to_list
PROTO((struct head
*, const char *));
276 static int extract_init_priority
PROTO((const char *));
277 static void sort_ids
PROTO((struct head
*));
278 static void write_list
PROTO((FILE *, const char *, struct id
*));
279 #ifdef COLLECT_EXPORT_LIST
280 static void dump_list
PROTO((FILE *, const char *, struct id
*));
283 static void dump_prefix_list
PROTO((FILE *, const char *, struct prefix_list
*));
285 static void write_list_with_asm
PROTO((FILE *, const char *, struct id
*));
286 static void write_c_file
PROTO((FILE *, const char *));
287 static void write_c_file_stat
PROTO((FILE *, const char *));
288 #ifndef LD_INIT_SWITCH
289 static void write_c_file_glob
PROTO((FILE *, const char *));
291 static void scan_prog_file
PROTO((const char *, enum pass
));
292 #ifdef SCAN_LIBRARIES
293 static void scan_libraries
PROTO((const char *));
295 #ifdef COLLECT_EXPORT_LIST
296 static int is_in_list
PROTO((const char *, struct id
*));
297 static void write_aix_file
PROTO((FILE *, struct id
*));
298 static char *resolve_lib_name
PROTO((const char *));
299 static int use_import_list
PROTO((const char *));
300 static int ignore_library
PROTO((const char *));
302 static char *extract_string
PROTO((const char **));
317 while ((fd
= dup (oldfd
)) != newfd
&& fd
>= 0) /* good enough for low fd's */
320 close (fdtmp
[--fdx
]);
326 /* Delete tempfiles and exit function. */
329 collect_exit (status
)
332 if (c_file
!= 0 && c_file
[0])
333 maybe_unlink (c_file
);
335 if (o_file
!= 0 && o_file
[0])
336 maybe_unlink (o_file
);
338 #ifdef COLLECT_EXPORT_LIST
339 if (export_file
!= 0 && export_file
[0])
340 maybe_unlink (export_file
);
342 if (import_file
!= 0 && import_file
[0])
343 maybe_unlink (import_file
);
346 if (ldout
!= 0 && ldout
[0])
349 maybe_unlink (ldout
);
352 if (status
!= 0 && output_file
!= 0 && output_file
[0])
353 maybe_unlink (output_file
);
359 /* Notify user of a non-error. */
361 notice
VPROTO((const char *msgid
, ...))
363 #ifndef ANSI_PROTOTYPES
368 VA_START (ap
, msgid
);
370 #ifndef ANSI_PROTOTYPES
371 msgid
= va_arg (ap
, const char *);
374 vfprintf (stderr
, _(msgid
), ap
);
378 /* Die when sys call fails. */
381 fatal_perror
VPROTO((const char * msgid
, ...))
383 #ifndef ANSI_PROTOTYPES
389 VA_START (ap
, msgid
);
391 #ifndef ANSI_PROTOTYPES
392 msgid
= va_arg (ap
, const char *);
395 fprintf (stderr
, "collect2: ");
396 vfprintf (stderr
, _(msgid
), ap
);
397 fprintf (stderr
, ": %s\n", xstrerror (e
));
400 collect_exit (FATAL_EXIT_CODE
);
406 fatal
VPROTO((const char * msgid
, ...))
408 #ifndef ANSI_PROTOTYPES
413 VA_START (ap
, msgid
);
415 #ifndef ANSI_PROTOTYPES
416 msgid
= va_arg (ap
, const char *);
419 fprintf (stderr
, "collect2: ");
420 vfprintf (stderr
, _(msgid
), ap
);
421 fprintf (stderr
, "\n");
424 collect_exit (FATAL_EXIT_CODE
);
427 /* Write error message. */
430 error
VPROTO((const char * msgid
, ...))
432 #ifndef ANSI_PROTOTYPES
437 VA_START (ap
, msgid
);
439 #ifndef ANSI_PROTOTYPES
440 msgid
= va_arg (ap
, const char *);
443 fprintf (stderr
, "collect2: ");
444 vfprintf (stderr
, _(msgid
), ap
);
445 fprintf (stderr
, "\n");
449 /* In case obstack is linked in, and abort is defined to fancy_abort,
450 provide a default entry. */
455 fatal ("internal error");
462 if (c_file
!= 0 && c_file
[0])
463 maybe_unlink (c_file
);
465 if (o_file
!= 0 && o_file
[0])
466 maybe_unlink (o_file
);
468 if (ldout
!= 0 && ldout
[0])
469 maybe_unlink (ldout
);
471 #ifdef COLLECT_EXPORT_LIST
472 if (export_file
!= 0 && export_file
[0])
473 maybe_unlink (export_file
);
475 if (import_file
!= 0 && import_file
[0])
476 maybe_unlink (import_file
);
479 signal (signo
, SIG_DFL
);
480 kill (getpid (), signo
);
488 return access (name
, R_OK
) == 0;
491 /* Parse a reasonable subset of shell quoting syntax. */
508 obstack_1grow (&temporary_obstack
, c
);
509 else if (! inside
&& c
== ' ')
511 else if (! inside
&& c
== '\\')
516 obstack_1grow (&temporary_obstack
, c
);
519 obstack_1grow (&temporary_obstack
, '\0');
521 return obstack_finish (&temporary_obstack
);
528 FILE *stream
= fopen (name
, "r");
529 int no_demangle
= !! getenv ("COLLECT_NO_DEMANGLE");
536 while (c
= getc (stream
),
537 c
!= EOF
&& (ISALNUM (c
) || c
== '_' || c
== '$' || c
== '.'))
538 obstack_1grow (&temporary_obstack
, c
);
539 if (obstack_object_size (&temporary_obstack
) > 0)
541 const char *word
, *p
;
543 obstack_1grow (&temporary_obstack
, '\0');
544 word
= obstack_finish (&temporary_obstack
);
547 ++word
, putc ('.', stderr
);
549 if (*p
== '_' && prepends_underscore
)
555 result
= cplus_demangle (p
, DMGL_PARAMS
| DMGL_ANSI
);
560 fputs (result
, stderr
);
562 diff
= strlen (word
) - strlen (result
);
564 --diff
, putc (' ', stderr
);
565 while (diff
< 0 && c
== ' ')
566 ++diff
, c
= getc (stream
);
571 fputs (word
, stderr
);
574 obstack_free (&temporary_obstack
, temporary_firstobj
);
583 /* Decide whether the given symbol is:
584 a constructor (1), a destructor (2), or neither (0). */
590 struct names
{ const char *name
; int len
; int ret
; int two_underscores
; };
592 register struct names
*p
;
594 register const char *orig_s
= s
;
596 static struct names special
[] = {
597 #ifdef NO_DOLLAR_IN_LABEL
598 #ifdef NO_DOT_IN_LABEL
599 { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 },
600 { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 },
601 { "GLOBAL__F_", sizeof ("GLOBAL__F_")-1, 5, 0 },
603 { "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 },
604 { "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 },
605 { "GLOBAL_.F.", sizeof ("GLOBAL_.F.")-1, 5, 0 },
608 { "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 },
609 { "GLOBAL_$D$", sizeof ("GLOBAL_$D$")-1, 2, 0 },
610 { "GLOBAL_$F$", sizeof ("GLOBAL_$F$")-1, 5, 0 },
612 { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 },
613 { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 },
614 #ifdef CFRONT_LOSSAGE /* Do not collect cfront initialization functions.
615 cfront has its own linker procedure to collect them;
616 if collect2 gets them too, they get collected twice
617 when the cfront procedure is run and the compiler used
618 for linking happens to be GCC. */
619 { "sti__", sizeof ("sti__")-1, 1, 1 },
620 { "std__", sizeof ("std__")-1, 2, 1 },
621 #endif /* CFRONT_LOSSAGE */
625 while ((ch
= *s
) == '_')
631 for (p
= &special
[0]; p
->len
> 0; p
++)
634 && (!p
->two_underscores
|| ((s
- orig_s
) >= 2))
635 && strncmp(s
, p
->name
, p
->len
) == 0)
643 /* We maintain two prefix lists: one from COMPILER_PATH environment variable
644 and one from the PATH variable. */
646 static struct path_prefix cpath
, path
;
649 /* This is the name of the target machine. We use it to form the name
650 of the files to execute. */
652 static const char *const target_machine
= TARGET_MACHINE
;
655 /* Search for NAME using prefix list PPREFIX. We only look for executable
658 Return 0 if not found, otherwise return its name, allocated with malloc. */
661 find_a_file (pprefix
, name
)
662 struct path_prefix
*pprefix
;
666 struct prefix_list
*pl
;
667 int len
= pprefix
->max_len
+ strlen (name
) + 1;
670 fprintf (stderr
, "Looking for '%s'\n", name
);
672 #ifdef EXECUTABLE_SUFFIX
673 len
+= strlen (EXECUTABLE_SUFFIX
);
676 temp
= xmalloc (len
);
678 /* Determine the filename to execute (special case for absolute paths). */
681 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
682 || (*name
&& name
[1] == ':')
686 if (access (name
, X_OK
) == 0)
691 fprintf (stderr
, " - found: absolute path\n");
696 #ifdef EXECUTABLE_SUFFIX
697 /* Some systems have a suffix for executable files.
698 So try appending that. */
700 strcat (temp
, EXECUTABLE_SUFFIX
);
702 if (access (temp
, X_OK
) == 0)
707 fprintf (stderr
, " - failed to locate using absolute path\n");
710 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
714 strcpy (temp
, pl
->prefix
);
717 if (stat (temp
, &st
) >= 0
718 && ! S_ISDIR (st
.st_mode
)
719 && access (temp
, X_OK
) == 0)
722 #ifdef EXECUTABLE_SUFFIX
723 /* Some systems have a suffix for executable files.
724 So try appending that. */
725 strcat (temp
, EXECUTABLE_SUFFIX
);
727 if (stat (temp
, &st
) >= 0
728 && ! S_ISDIR (st
.st_mode
)
729 && access (temp
, X_OK
) == 0)
734 if (debug
&& pprefix
->plist
== NULL
)
735 fprintf (stderr
, " - failed: no entries in prefix list\n");
741 /* Add an entry for PREFIX to prefix list PPREFIX. */
744 add_prefix (pprefix
, prefix
)
745 struct path_prefix
*pprefix
;
748 struct prefix_list
*pl
, **prev
;
753 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
758 prev
= &pprefix
->plist
;
760 /* Keep track of the longest prefix */
762 len
= strlen (prefix
);
763 if (len
> pprefix
->max_len
)
764 pprefix
->max_len
= len
;
766 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
767 pl
->prefix
= xstrdup (prefix
);
772 pl
->next
= (struct prefix_list
*) 0;
776 /* Take the value of the environment variable ENV, break it into a path, and
777 add of the entries to PPREFIX. */
780 prefix_from_env (env
, pprefix
)
782 struct path_prefix
*pprefix
;
785 GET_ENV_PATH_LIST (p
, env
);
788 prefix_from_string (p
, pprefix
);
792 prefix_from_string (p
, pprefix
)
794 struct path_prefix
*pprefix
;
796 const char *startp
, *endp
;
797 char *nstore
= (char *) xmalloc (strlen (p
) + 3);
800 fprintf (stderr
, "Convert string '%s' into prefixes, separator = '%c'\n", p
, PATH_SEPARATOR
);
805 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
807 strncpy (nstore
, startp
, endp
-startp
);
810 strcpy (nstore
, "./");
812 else if (! IS_DIR_SEPARATOR (endp
[-1]))
814 nstore
[endp
-startp
] = DIR_SEPARATOR
;
815 nstore
[endp
-startp
+1] = 0;
818 nstore
[endp
-startp
] = 0;
821 fprintf (stderr
, " - add prefix: %s\n", nstore
);
823 add_prefix (pprefix
, nstore
);
826 endp
= startp
= endp
+ 1;
835 int main
PROTO ((int, char *[]));
841 const char *ld_suffix
= "ld";
842 const char *full_ld_suffix
= ld_suffix
;
843 const char *real_ld_suffix
= "real-ld";
844 const char *collect_ld_suffix
= "collect-ld";
845 const char *nm_suffix
= "nm";
846 const char *full_nm_suffix
= nm_suffix
;
847 const char *gnm_suffix
= "gnm";
848 const char *full_gnm_suffix
= gnm_suffix
;
850 const char *ldd_suffix
= LDD_SUFFIX
;
851 const char *full_ldd_suffix
= ldd_suffix
;
853 const char *strip_suffix
= "strip";
854 const char *full_strip_suffix
= strip_suffix
;
855 const char *gstrip_suffix
= "gstrip";
856 const char *full_gstrip_suffix
= gstrip_suffix
;
859 #ifdef COLLECT_EXPORT_LIST
863 const char *ld_file_name
;
874 int num_c_args
= argc
+9;
876 #if defined (COLLECT2_HOST_INITIALIZATION)
877 /* Perform system dependant initialization, if neccessary. */
878 COLLECT2_HOST_INITIALIZATION
;
881 #ifdef HAVE_LC_MESSAGES
882 setlocale (LC_MESSAGES
, "");
884 (void) bindtextdomain (PACKAGE
, localedir
);
885 (void) textdomain (PACKAGE
);
887 /* Do not invoke xcalloc before this point, since locale needs to be
888 set first, in case a diagnostic is issued. */
890 ld1
= (const char **)(ld1_argv
= (char **) xcalloc(sizeof (char *), argc
+3));
891 ld2
= (const char **)(ld2_argv
= (char **) xcalloc(sizeof (char *), argc
+10));
892 object
= (const char **)(object_lst
= (char **) xcalloc(sizeof (char *), argc
));
898 /* Parse command line early for instances of -debug. This allows
899 the debug flag to be set before functions like find_a_file()
904 for (i
= 1; argv
[i
] != NULL
; i
++)
905 if (! strcmp (argv
[i
], "-debug"))
910 #ifndef DEFAULT_A_OUT_NAME
911 output_file
= "a.out";
913 output_file
= DEFAULT_A_OUT_NAME
;
916 obstack_begin (&temporary_obstack
, 0);
917 obstack_begin (&permanent_obstack
, 0);
918 temporary_firstobj
= (char *) obstack_alloc (&temporary_obstack
, 0);
920 current_demangling_style
= gnu_demangling
;
921 p
= getenv ("COLLECT_GCC_OPTIONS");
924 const char *q
= extract_string (&p
);
925 if (*q
== '-' && (q
[1] == 'm' || q
[1] == 'f'))
928 obstack_free (&temporary_obstack
, temporary_firstobj
);
930 /* -fno-exceptions -w */
933 c_ptr
= (const char **)
934 (c_argv
= (char **) xcalloc (sizeof (char *), num_c_args
));
937 fatal ("no arguments");
940 if (signal (SIGQUIT
, SIG_IGN
) != SIG_IGN
)
941 signal (SIGQUIT
, handler
);
943 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
944 signal (SIGINT
, handler
);
946 if (signal (SIGALRM
, SIG_IGN
) != SIG_IGN
)
947 signal (SIGALRM
, handler
);
950 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
951 signal (SIGHUP
, handler
);
953 if (signal (SIGSEGV
, SIG_IGN
) != SIG_IGN
)
954 signal (SIGSEGV
, handler
);
956 if (signal (SIGBUS
, SIG_IGN
) != SIG_IGN
)
957 signal (SIGBUS
, handler
);
960 /* Extract COMPILER_PATH and PATH into our prefix list. */
961 prefix_from_env ("COMPILER_PATH", &cpath
);
962 prefix_from_env ("PATH", &path
);
965 /* If we look for a program in the compiler directories, we just use
966 the short name, since these directories are already system-specific.
967 But it we look for a program in the system directories, we need to
968 qualify the program name with the target machine. */
970 full_ld_suffix
= concat(target_machine
, "-", ld_suffix
, NULL
);
973 full_gld_suffix
= concat (target_machine
, "-", gld_suffix
, NULL
);
976 full_nm_suffix
= concat (target_machine
, "-", nm_suffix
, NULL
);
978 full_gnm_suffix
= concat (target_machine
, "-", gnm_suffix
, NULL
);
981 full_ldd_suffix
= concat (target_machine
, "-", ldd_suffix
, NULL
);
984 full_strip_suffix
= concat (target_machine
, "-", strip_suffix
, NULL
);
986 full_gstrip_suffix
= concat (target_machine
, "-", gstrip_suffix
, NULL
);
987 #endif /* CROSS_COMPILE */
989 /* Try to discover a valid linker/nm/strip to use. */
991 /* Maybe we know the right file to use (if not cross). */
993 #ifdef DEFAULT_LINKER
994 if (access (DEFAULT_LINKER
, X_OK
) == 0)
995 ld_file_name
= DEFAULT_LINKER
;
996 if (ld_file_name
== 0)
998 #ifdef REAL_LD_FILE_NAME
999 ld_file_name
= find_a_file (&path
, REAL_LD_FILE_NAME
);
1000 if (ld_file_name
== 0)
1002 /* Search the (target-specific) compiler dirs for ld'. */
1003 ld_file_name
= find_a_file (&cpath
, real_ld_suffix
);
1004 /* Likewise for `collect-ld'. */
1005 if (ld_file_name
== 0)
1006 ld_file_name
= find_a_file (&cpath
, collect_ld_suffix
);
1007 /* Search the compiler directories for `ld'. We have protection against
1008 recursive calls in find_a_file. */
1009 if (ld_file_name
== 0)
1010 ld_file_name
= find_a_file (&cpath
, ld_suffix
);
1011 /* Search the ordinary system bin directories
1012 for `ld' (if native linking) or `TARGET-ld' (if cross). */
1013 if (ld_file_name
== 0)
1014 ld_file_name
= find_a_file (&path
, full_ld_suffix
);
1016 #ifdef REAL_NM_FILE_NAME
1017 nm_file_name
= find_a_file (&path
, REAL_NM_FILE_NAME
);
1018 if (nm_file_name
== 0)
1020 nm_file_name
= find_a_file (&cpath
, gnm_suffix
);
1021 if (nm_file_name
== 0)
1022 nm_file_name
= find_a_file (&path
, full_gnm_suffix
);
1023 if (nm_file_name
== 0)
1024 nm_file_name
= find_a_file (&cpath
, nm_suffix
);
1025 if (nm_file_name
== 0)
1026 nm_file_name
= find_a_file (&path
, full_nm_suffix
);
1029 ldd_file_name
= find_a_file (&cpath
, ldd_suffix
);
1030 if (ldd_file_name
== 0)
1031 ldd_file_name
= find_a_file (&path
, full_ldd_suffix
);
1034 #ifdef REAL_STRIP_FILE_NAME
1035 strip_file_name
= find_a_file (&path
, REAL_STRIP_FILE_NAME
);
1036 if (strip_file_name
== 0)
1038 strip_file_name
= find_a_file (&cpath
, gstrip_suffix
);
1039 if (strip_file_name
== 0)
1040 strip_file_name
= find_a_file (&path
, full_gstrip_suffix
);
1041 if (strip_file_name
== 0)
1042 strip_file_name
= find_a_file (&cpath
, strip_suffix
);
1043 if (strip_file_name
== 0)
1044 strip_file_name
= find_a_file (&path
, full_strip_suffix
);
1046 /* Determine the full path name of the C compiler to use. */
1047 c_file_name
= getenv ("COLLECT_GCC");
1048 if (c_file_name
== 0)
1050 #ifdef CROSS_COMPILE
1051 c_file_name
= concat (target_machine
, "-gcc", NULL
);
1053 c_file_name
= "gcc";
1057 p
= find_a_file (&cpath
, c_file_name
);
1059 /* Here it should be safe to use the system search path since we should have
1060 already qualified the name of the compiler when it is needed. */
1062 p
= find_a_file (&path
, c_file_name
);
1067 *ld1
++ = *ld2
++ = ld_file_name
;
1069 /* Make temp file names. */
1070 c_file
= make_temp_file (".c");
1071 o_file
= make_temp_file (".o");
1072 #ifdef COLLECT_EXPORT_LIST
1073 export_file
= make_temp_file (".x");
1074 import_file
= make_temp_file (".p");
1076 ldout
= make_temp_file (".ld");
1077 *c_ptr
++ = c_file_name
;
1084 #ifdef COLLECT_EXPORT_LIST
1085 /* Generate a list of directories from LIBPATH. */
1086 prefix_from_env ("LIBPATH", &libpath_lib_dirs
);
1087 /* Add to this list also two standard directories where
1088 AIX loader always searches for libraries. */
1089 add_prefix (&libpath_lib_dirs
, "/lib");
1090 add_prefix (&libpath_lib_dirs
, "/usr/lib");
1093 /* Get any options that the upper GCC wants to pass to the sub-GCC.
1095 AIX support needs to know if -shared has been specified before
1096 parsing commandline arguments. */
1098 p
= getenv ("COLLECT_GCC_OPTIONS");
1101 const char *q
= extract_string (&p
);
1102 if (*q
== '-' && (q
[1] == 'm' || q
[1] == 'f'))
1103 *c_ptr
++ = obstack_copy0 (&permanent_obstack
, q
, strlen (q
));
1104 if (strcmp (q
, "-EL") == 0 || strcmp (q
, "-EB") == 0)
1105 *c_ptr
++ = obstack_copy0 (&permanent_obstack
, q
, strlen (q
));
1106 if (strncmp (q
, "-shared", sizeof ("-shared") - 1) == 0)
1109 obstack_free (&temporary_obstack
, temporary_firstobj
);
1110 *c_ptr
++ = "-fno-exceptions";
1113 /* !!! When GCC calls collect2,
1114 it does not know whether it is calling collect2 or ld.
1115 So collect2 cannot meaningfully understand any options
1116 except those ld understands.
1117 If you propose to make GCC pass some other option,
1118 just imagine what will happen if ld is really ld!!! */
1120 /* Parse arguments. Remember output file spec, pass the rest to ld. */
1121 /* After the first file, put in the c++ rt0. */
1124 while ((arg
= *++argv
) != (char *) 0)
1126 *ld1
++ = *ld2
++ = arg
;
1132 #ifdef COLLECT_EXPORT_LIST
1133 /* We want to disable automatic exports on AIX when user
1134 explicitly puts an export list in command line */
1136 if (arg
[2] == 'E' || strncmp (&arg
[2], "export", 6) == 0)
1138 else if (arg
[2] == '6' && arg
[3] == '4')
1144 if (!strcmp (arg
, "-debug"))
1146 /* Already parsed. */
1155 /* place o_file BEFORE this argument! */
1161 #ifdef COLLECT_EXPORT_LIST
1163 /* Resolving full library name. */
1164 const char *s
= resolve_lib_name (arg
+2);
1166 /* If we will use an import list for this library,
1167 we should exclude it from ld args. */
1168 if (use_import_list (s
))
1174 /* Saving a full library name. */
1175 add_to_list (&libs
, s
);
1180 #ifdef COLLECT_EXPORT_LIST
1181 /* Saving directories where to search for libraries. */
1183 add_prefix (&cmdline_lib_dirs
, arg
+2);
1189 output_file
= *ld1
++ = *ld2
++ = *++argv
;
1191 #ifdef SWITCHES_NEED_SPACES
1192 && ! index (SWITCHES_NEED_SPACES
, arg
[1])
1196 output_file
= &arg
[2];
1205 if (arg
[2] == '\0' && do_collecting
)
1207 /* We must strip after the nm run, otherwise C++ linking
1208 will not work. Thus we strip in the second ld run, or
1209 else with strip if there is no second ld run. */
1221 else if ((p
= rindex (arg
, '.')) != (char *) 0
1222 && (strcmp (p
, ".o") == 0 || strcmp (p
, ".a") == 0
1223 || strcmp (p
, ".so") == 0))
1232 /* place o_file BEFORE this argument! */
1240 #ifdef COLLECT_EXPORT_LIST
1241 /* libraries can be specified directly, i.e. without -l flag. */
1244 /* If we will use an import list for this library,
1245 we should exclude it from ld args. */
1246 if (use_import_list (arg
))
1252 /* Saving a full library name. */
1253 add_to_list (&libs
, arg
);
1259 #ifdef COLLECT_EXPORT_LIST
1260 /* This is added only for debugging purposes. */
1263 fprintf (stderr
, "List of libraries:\n");
1264 dump_list (stderr
, "\t", libs
.first
);
1267 /* The AIX linker will discard static constructors in object files if
1268 nothing else in the file is referenced, so look at them first. */
1270 const char **export_object_lst
= (const char **)object_lst
;
1272 while (export_object_lst
< object
)
1273 scan_prog_file (*export_object_lst
++, PASS_OBJ
);
1276 struct id
*list
= libs
.first
;
1278 for (; list
; list
= list
->next
)
1279 scan_prog_file (list
->name
, PASS_FIRST
);
1284 char *buf
= xmalloc (strlen (export_file
) + 5);
1286 sprintf (buf
, "-bE:%s", export_file
);
1290 exportf
= fopen (export_file
, "w");
1291 if (exportf
== (FILE *) 0)
1292 fatal_perror ("fopen %s", export_file
);
1293 write_aix_file (exportf
, exports
.first
);
1294 if (fclose (exportf
))
1295 fatal_perror ("fclose %s", export_file
);
1300 char *buf
= xmalloc (strlen (import_file
) + 5);
1302 sprintf (buf
, "-bI:%s", import_file
);
1306 importf
= fopen (import_file
, "w");
1307 if (importf
== (FILE *) 0)
1308 fatal_perror ("%s", import_file
);
1309 fputs ("#! .\n", importf
);
1310 write_aix_file (importf
, imports
.first
);
1311 if (fclose (importf
))
1312 fatal_perror ("fclose %s", import_file
);
1317 *c_ptr
= *ld1
= *object
= (char *) 0;
1321 notice ("collect2 version %s", version_string
);
1322 #ifdef TARGET_VERSION
1325 fprintf (stderr
, "\n");
1331 fprintf (stderr
, "ld_file_name = %s\n",
1332 (ld_file_name
? ld_file_name
: "not found"));
1333 fprintf (stderr
, "c_file_name = %s\n",
1334 (c_file_name
? c_file_name
: "not found"));
1335 fprintf (stderr
, "nm_file_name = %s\n",
1336 (nm_file_name
? nm_file_name
: "not found"));
1338 fprintf (stderr
, "ldd_file_name = %s\n",
1339 (ldd_file_name
? ldd_file_name
: "not found"));
1341 fprintf (stderr
, "strip_file_name = %s\n",
1342 (strip_file_name
? strip_file_name
: "not found"));
1343 fprintf (stderr
, "c_file = %s\n",
1344 (c_file
? c_file
: "not found"));
1345 fprintf (stderr
, "o_file = %s\n",
1346 (o_file
? o_file
: "not found"));
1348 ptr
= getenv ("COLLECT_GCC_OPTIONS");
1350 fprintf (stderr
, "COLLECT_GCC_OPTIONS = %s\n", ptr
);
1352 ptr
= getenv ("COLLECT_GCC");
1354 fprintf (stderr
, "COLLECT_GCC = %s\n", ptr
);
1356 ptr
= getenv ("COMPILER_PATH");
1358 fprintf (stderr
, "COMPILER_PATH = %s\n", ptr
);
1360 ptr
= getenv (LIBRARY_PATH_ENV
);
1362 fprintf (stderr
, "%-20s= %s\n", LIBRARY_PATH_ENV
, ptr
);
1364 fprintf (stderr
, "\n");
1367 /* Load the program, searching all libraries and attempting to provide
1368 undefined symbols from repository information. */
1370 /* On AIX we do this later. */
1371 #ifndef COLLECT_EXPORT_LIST
1372 do_tlink (ld1_argv
, object_lst
);
1375 /* If -r or they will be run via some other method, do not build the
1376 constructor or destructor list, just return now. */
1378 #ifndef COLLECT_EXPORT_LIST
1383 #ifdef COLLECT_EXPORT_LIST
1384 /* Do the link we avoided above if we are exiting. */
1385 do_tlink (ld1_argv
, object_lst
);
1387 /* But make sure we delete the export file we may have created. */
1388 if (export_file
!= 0 && export_file
[0])
1389 maybe_unlink (export_file
);
1390 if (import_file
!= 0 && import_file
[0])
1391 maybe_unlink (import_file
);
1393 maybe_unlink (c_file
);
1394 maybe_unlink (o_file
);
1398 /* Examine the namelist with nm and search it for static constructors
1399 and destructors to call.
1400 Write the constructor and destructor tables to a .s file and reload. */
1402 /* On AIX we already scanned for global constructors/destructors. */
1403 #ifndef COLLECT_EXPORT_LIST
1404 scan_prog_file (output_file
, PASS_FIRST
);
1407 #ifdef SCAN_LIBRARIES
1408 scan_libraries (output_file
);
1413 notice ("%d constructor(s) found\n", constructors
.number
);
1414 notice ("%d destructor(s) found\n", destructors
.number
);
1415 notice ("%d frame table(s) found\n", frame_tables
.number
);
1418 if (constructors
.number
== 0 && destructors
.number
== 0
1419 && frame_tables
.number
== 0
1420 #if defined (SCAN_LIBRARIES) || defined (COLLECT_EXPORT_LIST)
1421 /* If we will be running these functions ourselves, we want to emit
1422 stubs into the shared library so that we do not have to relink
1423 dependent programs when we add static objects. */
1428 #ifdef COLLECT_EXPORT_LIST
1429 /* Do tlink without additional code generation */
1430 do_tlink (ld1_argv
, object_lst
);
1432 /* Strip now if it was requested on the command line. */
1435 char **real_strip_argv
= (char **) xcalloc (sizeof (char *), 3);
1436 const char ** strip_argv
= (const char **) real_strip_argv
;
1438 strip_argv
[0] = strip_file_name
;
1439 strip_argv
[1] = output_file
;
1440 strip_argv
[2] = (char *) 0;
1441 fork_execute ("strip", real_strip_argv
);
1444 #ifdef COLLECT_EXPORT_LIST
1445 maybe_unlink (export_file
);
1446 maybe_unlink (import_file
);
1448 maybe_unlink (c_file
);
1449 maybe_unlink (o_file
);
1453 /* Sort ctor and dtor lists by priority. */
1454 sort_ids (&constructors
);
1455 sort_ids (&destructors
);
1457 maybe_unlink(output_file
);
1458 outf
= fopen (c_file
, "w");
1459 if (outf
== (FILE *) 0)
1460 fatal_perror ("fopen %s", c_file
);
1462 write_c_file (outf
, c_file
);
1465 fatal_perror ("fclose %s", c_file
);
1467 /* Tell the linker that we have initializer and finalizer functions. */
1468 #ifdef LD_INIT_SWITCH
1469 #ifdef COLLECT_EXPORT_LIST
1471 /* option name + functions + colons + NULL */
1472 char *buf
= xmalloc (strlen (LD_INIT_SWITCH
)
1473 + strlen(initname
) + strlen(fininame
) + 3);
1474 sprintf (buf
, "%s:%s:%s", LD_INIT_SWITCH
, initname
, fininame
);
1478 *ld2
++ = LD_INIT_SWITCH
;
1480 *ld2
++ = LD_FINI_SWITCH
;
1485 #ifdef COLLECT_EXPORT_LIST
1488 /* If we did not add export flag to link arguments before, add it to
1489 second link phase now. No new exports should have been added. */
1490 if (! exports
.first
)
1492 char *buf
= xmalloc (strlen (export_file
) + 5);
1494 sprintf (buf
, "-bE:%s", export_file
);
1498 add_to_list (&exports
, initname
);
1499 add_to_list (&exports
, fininame
);
1500 add_to_list (&exports
, "_GLOBAL__DI");
1501 add_to_list (&exports
, "_GLOBAL__DD");
1502 exportf
= fopen (export_file
, "w");
1503 if (exportf
== (FILE *) 0)
1504 fatal_perror ("fopen %s", export_file
);
1505 write_aix_file (exportf
, exports
.first
);
1506 if (fclose (exportf
))
1507 fatal_perror ("fclose %s", export_file
);
1511 /* End of arguments to second link phase. */
1516 fprintf (stderr
, "\n========== output_file = %s, c_file = %s\n",
1517 output_file
, c_file
);
1518 write_c_file (stderr
, "stderr");
1519 fprintf (stderr
, "========== end of c_file\n\n");
1520 #ifdef COLLECT_EXPORT_LIST
1521 fprintf (stderr
, "\n========== export_file = %s\n", export_file
);
1522 write_aix_file (stderr
, exports
.first
);
1523 fprintf (stderr
, "========== end of export_file\n\n");
1527 /* Assemble the constructor and destructor tables.
1528 Link the tables in with the rest of the program. */
1530 fork_execute ("gcc", c_argv
);
1531 #ifdef COLLECT_EXPORT_LIST
1532 /* On AIX we must call tlink because of possible templates resolution */
1533 do_tlink (ld2_argv
, object_lst
);
1535 /* Otherwise, simply call ld because tlink is already done */
1536 fork_execute ("ld", ld2_argv
);
1538 /* Let scan_prog_file do any final mods (OSF/rose needs this for
1539 constructors/destructors in shared libraries. */
1540 scan_prog_file (output_file
, PASS_SECOND
);
1543 maybe_unlink (c_file
);
1544 maybe_unlink (o_file
);
1546 #ifdef COLLECT_EXPORT_LIST
1547 maybe_unlink (export_file
);
1548 maybe_unlink (import_file
);
1555 /* Wait for a process to finish, and exit if a non-zero status is found. */
1563 pwait (pexecute_pid
, &status
, 0);
1566 if (WIFSIGNALED (status
))
1568 int sig
= WTERMSIG (status
);
1569 error ("%s terminated with signal %d [%s]%s",
1570 prog
, sig
, strsignal(sig
),
1571 status
& 0200 ? "" : ", core dumped");
1572 collect_exit (FATAL_EXIT_CODE
);
1575 if (WIFEXITED (status
))
1576 return WEXITSTATUS (status
);
1585 int ret
= collect_wait (prog
);
1588 error ("%s returned %d exit status", prog
, ret
);
1594 /* Execute a program, and wait for the reply. */
1597 collect_execute (prog
, argv
, redir
)
1604 int redir_handle
= -1;
1605 int stdout_save
= -1;
1606 int stderr_save
= -1;
1614 fprintf (stderr
, "%s", argv
[0]);
1616 notice ("[cannot find %s]", prog
);
1618 for (p_argv
= &argv
[1]; (str
= *p_argv
) != (char *) 0; p_argv
++)
1619 fprintf (stderr
, " %s", str
);
1621 fprintf (stderr
, "\n");
1627 /* If we cannot find a program we need, complain error. Do this here
1628 since we might not end up needing something that we could not find. */
1631 fatal ("cannot find `%s'", prog
);
1635 /* Open response file. */
1636 redir_handle
= open (redir
, O_WRONLY
| O_TRUNC
| O_CREAT
);
1638 /* Duplicate the stdout and stderr file handles
1639 so they can be restored later. */
1640 stdout_save
= dup (STDOUT_FILENO
);
1641 if (stdout_save
== -1)
1642 fatal_perror ("redirecting stdout: %s", redir
);
1643 stderr_save
= dup (STDERR_FILENO
);
1644 if (stderr_save
== -1)
1645 fatal_perror ("redirecting stdout: %s", redir
);
1647 /* Redirect stdout & stderr to our response file. */
1648 dup2 (redir_handle
, STDOUT_FILENO
);
1649 dup2 (redir_handle
, STDERR_FILENO
);
1652 pexecute_pid
= pexecute (argv
[0], argv
, argv
[0], NULL
,
1653 &errmsg_fmt
, &errmsg_arg
,
1654 (PEXECUTE_FIRST
| PEXECUTE_LAST
| PEXECUTE_SEARCH
));
1658 /* Restore stdout and stderr to their previous settings. */
1659 dup2 (stdout_save
, STDOUT_FILENO
);
1660 dup2 (stderr_save
, STDERR_FILENO
);
1662 /* Close reponse file. */
1663 close (redir_handle
);
1666 if (pexecute_pid
== -1)
1667 fatal_perror (errmsg_fmt
, errmsg_arg
);
1671 fork_execute (prog
, argv
)
1675 collect_execute (prog
, argv
, NULL
);
1679 /* Unlink a file unless we are debugging. */
1688 notice ("[Leaving %s]\n", file
);
1692 static long sequence_number
= 0;
1694 /* Add a name to a linked list. */
1697 add_to_list (head_ptr
, name
)
1698 struct head
*head_ptr
;
1702 = (struct id
*) xcalloc (sizeof (struct id
) + strlen (name
), 1);
1704 strcpy (newid
->name
, name
);
1706 if (head_ptr
->first
)
1707 head_ptr
->last
->next
= newid
;
1709 head_ptr
->first
= newid
;
1711 /* Check for duplicate symbols. */
1712 for (p
= head_ptr
->first
;
1713 strcmp (name
, p
->name
) != 0;
1718 head_ptr
->last
->next
= 0;
1723 newid
->sequence
= ++sequence_number
;
1724 head_ptr
->last
= newid
;
1728 /* Grab the init priority number from an init function name that
1729 looks like "_GLOBAL_.I.12345.foo". */
1732 extract_init_priority (name
)
1737 while (name
[pos
] == '_')
1739 pos
+= 10; /* strlen ("GLOBAL__X_") */
1741 /* Extract init_p number from ctor/dtor name. */
1742 pri
= atoi (name
+ pos
);
1743 return pri
? pri
: DEFAULT_INIT_PRIORITY
;
1746 /* Insertion sort the ids from ctor/dtor list HEAD_PTR in descending order.
1747 ctors will be run from right to left, dtors from left to right. */
1751 struct head
*head_ptr
;
1753 /* id holds the current element to insert. id_next holds the next
1754 element to insert. id_ptr iterates through the already sorted elements
1755 looking for the place to insert id. */
1756 struct id
*id
, *id_next
, **id_ptr
;
1758 id
= head_ptr
->first
;
1760 /* We don't have any sorted elements yet. */
1761 head_ptr
->first
= NULL
;
1763 for (; id
; id
= id_next
)
1766 id
->sequence
= extract_init_priority (id
->name
);
1768 for (id_ptr
= &(head_ptr
->first
); ; id_ptr
= &((*id_ptr
)->next
))
1770 /* If the sequence numbers are the same, we put the id from the
1771 file later on the command line later in the list. */
1772 || id
->sequence
> (*id_ptr
)->sequence
1773 /* Hack: do lexical compare, too.
1774 || (id->sequence == (*id_ptr)->sequence
1775 && strcmp (id->name, (*id_ptr)->name) > 0) */
1784 /* Now set the sequence numbers properly so write_c_file works. */
1785 for (id
= head_ptr
->first
; id
; id
= id
->next
)
1786 id
->sequence
= ++sequence_number
;
1789 /* Write: `prefix', the names on list LIST, `suffix'. */
1792 write_list (stream
, prefix
, list
)
1799 fprintf (stream
, "%sx%d,\n", prefix
, list
->sequence
);
1804 #ifdef COLLECT_EXPORT_LIST
1805 /* This function is really used only on AIX, but may be useful. */
1807 is_in_list (prefix
, list
)
1813 if (!strcmp (prefix
, list
->name
)) return 1;
1820 /* Added for debugging purpose. */
1821 #ifdef COLLECT_EXPORT_LIST
1823 dump_list (stream
, prefix
, list
)
1830 fprintf (stream
, "%s%s,\n", prefix
, list
->name
);
1838 dump_prefix_list (stream
, prefix
, list
)
1841 struct prefix_list
*list
;
1845 fprintf (stream
, "%s%s,\n", prefix
, list
->prefix
);
1852 write_list_with_asm (stream
, prefix
, list
)
1859 fprintf (stream
, "%sx%d __asm__ (\"%s\");\n",
1860 prefix
, list
->sequence
, list
->name
);
1865 /* Write out the constructor and destructor tables statically (for a shared
1866 object), along with the functions to execute them. */
1869 write_c_file_stat (stream
, name
)
1871 const char *name ATTRIBUTE_UNUSED
;
1875 int frames
= (frame_tables
.number
> 0);
1877 /* Figure out name of output_file, stripping off .so version. */
1878 p
= rindex (output_file
, '/');
1894 if (strncmp (q
, ".so", 3) == 0)
1903 /* q points to null at end of the string (or . of the .so version) */
1904 prefix
= xmalloc (q
- p
+ 1);
1905 strncpy (prefix
, p
, q
- p
);
1907 for (r
= prefix
; *r
; r
++)
1908 if (!ISALNUM ((unsigned char)*r
))
1911 notice ("\nwrite_c_file - output name is %s, prefix is %s\n",
1912 output_file
, prefix
);
1914 #define INIT_NAME_FORMAT "_GLOBAL__FI_%s"
1915 initname
= xmalloc (strlen (prefix
) + sizeof (INIT_NAME_FORMAT
) - 2);
1916 sprintf (initname
, INIT_NAME_FORMAT
, prefix
);
1918 #define FINI_NAME_FORMAT "_GLOBAL__FD_%s"
1919 fininame
= xmalloc (strlen (prefix
) + sizeof (FINI_NAME_FORMAT
) - 2);
1920 sprintf (fininame
, FINI_NAME_FORMAT
, prefix
);
1924 /* Write the tables as C code */
1926 fprintf (stream
, "static int count;\n");
1927 fprintf (stream
, "typedef void entry_pt();\n");
1928 write_list_with_asm (stream
, "extern entry_pt ", constructors
.first
);
1932 write_list_with_asm (stream
, "extern void *", frame_tables
.first
);
1934 fprintf (stream
, "\tstatic void *frame_table[] = {\n");
1935 write_list (stream
, "\t\t&", frame_tables
.first
);
1936 fprintf (stream
, "\t0\n};\n");
1938 /* This must match what's in frame.h. */
1939 fprintf (stream
, "struct object {\n");
1940 fprintf (stream
, " void *pc_begin;\n");
1941 fprintf (stream
, " void *pc_end;\n");
1942 fprintf (stream
, " void *fde_begin;\n");
1943 fprintf (stream
, " void *fde_array;\n");
1944 fprintf (stream
, " __SIZE_TYPE__ count;\n");
1945 fprintf (stream
, " struct object *next;\n");
1946 fprintf (stream
, "};\n");
1948 fprintf (stream
, "extern void __register_frame_info_table (void *, struct object *);\n");
1949 fprintf (stream
, "extern void *__deregister_frame_info (void *);\n");
1951 fprintf (stream
, "static void reg_frame () {\n");
1952 fprintf (stream
, "\tstatic struct object ob;\n");
1953 fprintf (stream
, "\t__register_frame_info_table (frame_table, &ob);\n");
1954 fprintf (stream
, "\t}\n");
1956 fprintf (stream
, "static void dereg_frame () {\n");
1957 fprintf (stream
, "\t__deregister_frame_info (frame_table);\n");
1958 fprintf (stream
, "\t}\n");
1961 fprintf (stream
, "void %s() {\n", initname
);
1962 if (constructors
.number
> 0 || frames
)
1964 fprintf (stream
, "\tstatic entry_pt *ctors[] = {\n");
1965 write_list (stream
, "\t\t", constructors
.first
);
1967 fprintf (stream
, "\treg_frame,\n");
1968 fprintf (stream
, "\t};\n");
1969 fprintf (stream
, "\tentry_pt **p;\n");
1970 fprintf (stream
, "\tif (count++ != 0) return;\n");
1971 fprintf (stream
, "\tp = ctors + %d;\n", constructors
.number
+ frames
);
1972 fprintf (stream
, "\twhile (p > ctors) (*--p)();\n");
1975 fprintf (stream
, "\t++count;\n");
1976 fprintf (stream
, "}\n");
1977 write_list_with_asm (stream
, "extern entry_pt ", destructors
.first
);
1978 fprintf (stream
, "void %s() {\n", fininame
);
1979 if (destructors
.number
> 0 || frames
)
1981 fprintf (stream
, "\tstatic entry_pt *dtors[] = {\n");
1982 write_list (stream
, "\t\t", destructors
.first
);
1984 fprintf (stream
, "\tdereg_frame,\n");
1985 fprintf (stream
, "\t};\n");
1986 fprintf (stream
, "\tentry_pt **p;\n");
1987 fprintf (stream
, "\tif (--count != 0) return;\n");
1988 fprintf (stream
, "\tp = dtors;\n");
1989 fprintf (stream
, "\twhile (p < dtors + %d) (*p++)();\n",
1990 destructors
.number
+ frames
);
1992 fprintf (stream
, "}\n");
1996 fprintf (stream
, "void _GLOBAL__DI() {\n\t%s();\n}\n", initname
);
1997 fprintf (stream
, "void _GLOBAL__DD() {\n\t%s();\n}\n", fininame
);
2001 /* Write the constructor/destructor tables. */
2003 #ifndef LD_INIT_SWITCH
2005 write_c_file_glob (stream
, name
)
2007 const char *name ATTRIBUTE_UNUSED
;
2009 /* Write the tables as C code */
2011 int frames
= (frame_tables
.number
> 0);
2013 fprintf (stream
, "typedef void entry_pt();\n\n");
2015 write_list_with_asm (stream
, "extern entry_pt ", constructors
.first
);
2019 write_list_with_asm (stream
, "extern void *", frame_tables
.first
);
2021 fprintf (stream
, "\tstatic void *frame_table[] = {\n");
2022 write_list (stream
, "\t\t&", frame_tables
.first
);
2023 fprintf (stream
, "\t0\n};\n");
2025 /* This must match what's in frame.h. */
2026 fprintf (stream
, "struct object {\n");
2027 fprintf (stream
, " void *pc_begin;\n");
2028 fprintf (stream
, " void *pc_end;\n");
2029 fprintf (stream
, " void *fde_begin;\n");
2030 fprintf (stream
, " void *fde_array;\n");
2031 fprintf (stream
, " __SIZE_TYPE__ count;\n");
2032 fprintf (stream
, " struct object *next;\n");
2033 fprintf (stream
, "};\n");
2035 fprintf (stream
, "extern void __register_frame_info_table (void *, struct object *);\n");
2036 fprintf (stream
, "extern void *__deregister_frame_info (void *);\n");
2038 fprintf (stream
, "static void reg_frame () {\n");
2039 fprintf (stream
, "\tstatic struct object ob;\n");
2040 fprintf (stream
, "\t__register_frame_info_table (frame_table, &ob);\n");
2041 fprintf (stream
, "\t}\n");
2043 fprintf (stream
, "static void dereg_frame () {\n");
2044 fprintf (stream
, "\t__deregister_frame_info (frame_table);\n");
2045 fprintf (stream
, "\t}\n");
2048 fprintf (stream
, "\nentry_pt * __CTOR_LIST__[] = {\n");
2049 fprintf (stream
, "\t(entry_pt *) %d,\n", constructors
.number
+ frames
);
2050 write_list (stream
, "\t", constructors
.first
);
2052 fprintf (stream
, "\treg_frame,\n");
2053 fprintf (stream
, "\t0\n};\n\n");
2055 write_list_with_asm (stream
, "extern entry_pt ", destructors
.first
);
2057 fprintf (stream
, "\nentry_pt * __DTOR_LIST__[] = {\n");
2058 fprintf (stream
, "\t(entry_pt *) %d,\n", destructors
.number
+ frames
);
2059 write_list (stream
, "\t", destructors
.first
);
2061 fprintf (stream
, "\tdereg_frame,\n");
2062 fprintf (stream
, "\t0\n};\n\n");
2064 fprintf (stream
, "extern entry_pt %s;\n", NAME__MAIN
);
2065 fprintf (stream
, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN
);
2067 #endif /* ! LD_INIT_SWITCH */
2070 write_c_file (stream
, name
)
2074 fprintf (stream
, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
2075 #ifndef LD_INIT_SWITCH
2077 write_c_file_glob (stream
, name
);
2080 write_c_file_stat (stream
, name
);
2081 fprintf (stream
, "#ifdef __cplusplus\n}\n#endif\n");
2084 #ifdef COLLECT_EXPORT_LIST
2086 write_aix_file (stream
, list
)
2090 for (; list
; list
= list
->next
)
2092 fputs (list
->name
, stream
);
2093 putc ('\n', stream
);
2098 #ifdef OBJECT_FORMAT_NONE
2100 /* Generic version to scan the name list of the loaded program for
2101 the symbols g++ uses for static constructors and destructors.
2103 The constructor table begins at __CTOR_LIST__ and contains a count
2104 of the number of pointers (or -1 if the constructors are built in a
2105 separate section by the linker), followed by the pointers to the
2106 constructor functions, terminated with a null pointer. The
2107 destructor table has the same format, and begins at __DTOR_LIST__. */
2110 scan_prog_file (prog_name
, which_pass
)
2111 const char *prog_name
;
2112 enum pass which_pass
;
2114 void (*int_handler
) PROTO ((int));
2115 void (*quit_handler
) PROTO ((int));
2116 char *real_nm_argv
[4];
2117 const char **nm_argv
= (const char **) real_nm_argv
;
2124 if (which_pass
== PASS_SECOND
)
2127 /* If we do not have an `nm', complain. */
2128 if (nm_file_name
== 0)
2129 fatal ("cannot find `nm'");
2131 nm_argv
[argc
++] = nm_file_name
;
2132 if (NM_FLAGS
[0] != '\0')
2133 nm_argv
[argc
++] = NM_FLAGS
;
2135 nm_argv
[argc
++] = prog_name
;
2136 nm_argv
[argc
++] = (char *) 0;
2138 if (pipe (pipe_fd
) < 0)
2139 fatal_perror ("pipe");
2141 inf
= fdopen (pipe_fd
[0], "r");
2142 if (inf
== (FILE *) 0)
2143 fatal_perror ("fdopen");
2145 /* Trace if needed. */
2148 const char **p_argv
;
2151 for (p_argv
= &nm_argv
[0]; (str
= *p_argv
) != (char *) 0; p_argv
++)
2152 fprintf (stderr
, " %s", str
);
2154 fprintf (stderr
, "\n");
2160 /* Spawn child nm on pipe */
2163 fatal_perror (VFORK_STRING
);
2165 if (pid
== 0) /* child context */
2168 if (dup2 (pipe_fd
[1], 1) < 0)
2169 fatal_perror ("dup2 %d 1", pipe_fd
[1]);
2171 if (close (pipe_fd
[0]) < 0)
2172 fatal_perror ("close %d", pipe_fd
[0]);
2174 if (close (pipe_fd
[1]) < 0)
2175 fatal_perror ("close %d", pipe_fd
[1]);
2177 execv (nm_file_name
, real_nm_argv
);
2178 fatal_perror ("execvp %s", nm_file_name
);
2181 /* Parent context from here on. */
2182 int_handler
= (void (*) PROTO ((int))) signal (SIGINT
, SIG_IGN
);
2184 quit_handler
= (void (*) PROTO ((int))) signal (SIGQUIT
, SIG_IGN
);
2187 if (close (pipe_fd
[1]) < 0)
2188 fatal_perror ("close %d", pipe_fd
[1]);
2191 fprintf (stderr
, "\nnm output with constructors/destructors.\n");
2193 /* Read each line of nm output. */
2194 while (fgets (buf
, sizeof buf
, inf
) != (char *) 0)
2199 /* If it contains a constructor or destructor name, add the name
2200 to the appropriate list. */
2202 for (p
= buf
; (ch
= *p
) != '\0' && ch
!= '\n' && ch
!= '_'; p
++)
2203 if (ch
== ' ' && p
[1] == 'U' && p
[2] == ' ')
2210 /* Find the end of the symbol name.
2211 Do not include `|', because Encore nm can tack that on the end. */
2212 for (end
= p
; (ch2
= *end
) != '\0' && !ISSPACE (ch2
) && ch2
!= '|';
2218 switch (is_ctor_dtor (name
))
2221 if (which_pass
!= PASS_LIB
)
2222 add_to_list (&constructors
, name
);
2226 if (which_pass
!= PASS_LIB
)
2227 add_to_list (&destructors
, name
);
2231 if (which_pass
!= PASS_LIB
)
2232 fatal ("init function found in object %s", prog_name
);
2233 #ifndef LD_INIT_SWITCH
2234 add_to_list (&constructors
, name
);
2239 if (which_pass
!= PASS_LIB
)
2240 fatal ("fini function found in object %s", prog_name
);
2241 #ifndef LD_FINI_SWITCH
2242 add_to_list (&destructors
, name
);
2247 if (which_pass
!= PASS_LIB
)
2248 add_to_list (&frame_tables
, name
);
2251 default: /* not a constructor or destructor */
2256 fprintf (stderr
, "\t%s\n", buf
);
2260 fprintf (stderr
, "\n");
2262 if (fclose (inf
) != 0)
2263 fatal_perror ("fclose");
2265 do_wait (nm_file_name
);
2267 signal (SIGINT
, int_handler
);
2269 signal (SIGQUIT
, quit_handler
);
2273 #if SUNOS4_SHARED_LIBRARIES
2275 /* Routines to scan the SunOS 4 _DYNAMIC structure to find shared libraries
2276 that the output file depends upon and their initialization/finalization
2277 routines, if any. */
2282 #include <sys/mman.h>
2283 #include <sys/param.h>
2285 #include <sys/dir.h>
2287 /* pointers to the object file */
2288 unsigned object
; /* address of memory mapped file */
2289 unsigned objsize
; /* size of memory mapped to file */
2290 char * code
; /* pointer to code segment */
2291 char * data
; /* pointer to data segment */
2292 struct nlist
*symtab
; /* pointer to symbol table */
2293 struct link_dynamic
*ld
;
2294 struct link_dynamic_2
*ld_2
;
2295 struct head libraries
;
2297 /* Map the file indicated by NAME into memory and store its address. */
2299 static void mapfile
PROTO ((const char *));
2307 if ((fp
= open (name
, O_RDONLY
)) == -1)
2308 fatal ("unable to open file '%s'", name
);
2309 if (fstat (fp
, &s
) == -1)
2310 fatal ("unable to stat file '%s'", name
);
2312 objsize
= s
.st_size
;
2313 object
= (unsigned) mmap (0, objsize
, PROT_READ
|PROT_WRITE
, MAP_PRIVATE
,
2315 if (object
== (unsigned)-1)
2316 fatal ("unable to mmap file '%s'", name
);
2321 /* Helpers for locatelib. */
2323 static const char *libname
;
2325 static int libselect
PROTO ((struct direct
*));
2331 return (strncmp (libname
, d
->d_name
, strlen (libname
)) == 0);
2334 /* If one file has an additional numeric extension past LIBNAME, then put
2335 that one first in the sort. If both files have additional numeric
2336 extensions, then put the one with the higher number first in the sort.
2338 We must verify that the extension is numeric, because Sun saves the
2339 original versions of patched libraries with a .FCS extension. Files with
2340 invalid extensions must go last in the sort, so that they will not be used. */
2341 static int libcompare
PROTO ((struct direct
**, struct direct
**));
2345 struct direct
**d1
, **d2
;
2347 int i1
, i2
= strlen (libname
);
2348 char *e1
= (*d1
)->d_name
+ i2
;
2349 char *e2
= (*d2
)->d_name
+ i2
;
2351 while (*e1
&& *e2
&& *e1
== '.' && *e2
== '.'
2352 && e1
[1] && ISDIGIT (e1
[1]) && e2
[1] && ISDIGIT (e2
[1]))
2356 i1
= strtol (e1
, &e1
, 10);
2357 i2
= strtol (e2
, &e2
, 10);
2364 /* It has a valid numeric extension, prefer this one. */
2365 if (*e1
== '.' && e1
[1] && ISDIGIT (e1
[1]))
2367 /* It has a invalid numeric extension, must prefer the other one. */
2373 /* It has a valid numeric extension, prefer this one. */
2374 if (*e2
== '.' && e2
[1] && ISDIGIT (e2
[1]))
2376 /* It has a invalid numeric extension, must prefer the other one. */
2384 /* Given the name NAME of a dynamic dependency, find its pathname and add
2385 it to the list of libraries. */
2386 static void locatelib
PROTO ((const char *));
2392 static const char **l
;
2394 char buf
[MAXPATHLEN
];
2402 /* counting elements in array, need 1 extra for null */
2404 ld_rules
= (char *) (ld_2
->ld_rules
+ code
);
2408 for (; *ld_rules
!= 0; ld_rules
++)
2409 if (*ld_rules
== ':')
2411 ld_rules
= (char *) (ld_2
->ld_rules
+ code
);
2412 ldr
= xstrdup (ld_rules
);
2414 p
= getenv ("LD_LIBRARY_PATH");
2419 for (q
= p
; *q
!= 0; q
++)
2424 l
= (const char **) xmalloc ((cnt
+ 3) * sizeof (char *));
2429 for (; *ldr
!= 0; ldr
++)
2439 for (; *q
!= 0; q
++)
2446 /* built in directories are /lib, /usr/lib, and /usr/local/lib */
2449 *pp
++ = "/usr/local/lib";
2453 for (pp
= l
; *pp
!= 0 ; pp
++)
2455 struct direct
**namelist
;
2457 if ((entries
= scandir (*pp
, &namelist
, libselect
, libcompare
)) > 0)
2459 sprintf (buf
, "%s/%s", *pp
, namelist
[entries
- 1]->d_name
);
2460 add_to_list (&libraries
, buf
);
2462 fprintf (stderr
, "%s\n", buf
);
2469 notice ("not found\n");
2471 fatal ("dynamic dependency %s not found", name
);
2475 /* Scan the _DYNAMIC structure of the output file to find shared libraries
2476 that it depends upon and any constructors or destructors they contain. */
2479 scan_libraries (prog_name
)
2480 const char *prog_name
;
2482 struct exec
*header
;
2484 struct link_object
*lo
;
2485 char buff
[MAXPATHLEN
];
2488 mapfile (prog_name
);
2489 header
= (struct exec
*)object
;
2490 if (N_BADMAG (*header
))
2491 fatal ("bad magic number in file '%s'", prog_name
);
2492 if (header
->a_dynamic
== 0)
2495 code
= (char *) (N_TXTOFF (*header
) + (long) header
);
2496 data
= (char *) (N_DATOFF (*header
) + (long) header
);
2497 symtab
= (struct nlist
*) (N_SYMOFF (*header
) + (long) header
);
2499 if (header
->a_magic
== ZMAGIC
&& header
->a_entry
== 0x20)
2502 ld
= (struct link_dynamic
*) (symtab
->n_value
+ code
);
2508 ld
= (struct link_dynamic
*) data
;
2513 notice ("dynamic dependencies.\n");
2515 ld_2
= (struct link_dynamic_2
*) ((long) ld
->ld_un
.ld_2
+ (long)base
);
2516 for (lo
= (struct link_object
*) ld_2
->ld_need
; lo
;
2517 lo
= (struct link_object
*) lo
->lo_next
)
2520 lo
= (struct link_object
*) ((long) lo
+ code
);
2521 name
= (char *) (code
+ lo
->lo_name
);
2525 fprintf (stderr
, "\t-l%s.%d => ", name
, lo
->lo_major
);
2526 sprintf (buff
, "lib%s.so.%d.%d", name
, lo
->lo_major
, lo
->lo_minor
);
2532 fprintf (stderr
, "\t%s\n", name
);
2533 add_to_list (&libraries
, name
);
2538 fprintf (stderr
, "\n");
2540 /* now iterate through the library list adding their symbols to
2542 for (list
= libraries
.first
; list
; list
= list
->next
)
2543 scan_prog_file (list
->name
, PASS_LIB
);
2546 #else /* SUNOS4_SHARED_LIBRARIES */
2549 /* Use the List Dynamic Dependencies program to find shared libraries that
2550 the output file depends upon and their initialization/finalization
2551 routines, if any. */
2554 scan_libraries (prog_name
)
2555 const char *prog_name
;
2557 static struct head libraries
; /* list of shared libraries found */
2559 void (*int_handler
) PROTO ((int));
2560 void (*quit_handler
) PROTO ((int));
2561 char *real_ldd_argv
[4];
2562 const char **ldd_argv
= (const char **) real_ldd_argv
;
2569 /* If we do not have an `ldd', complain. */
2570 if (ldd_file_name
== 0)
2572 error ("cannot find `ldd'");
2576 ldd_argv
[argc
++] = ldd_file_name
;
2577 ldd_argv
[argc
++] = prog_name
;
2578 ldd_argv
[argc
++] = (char *) 0;
2580 if (pipe (pipe_fd
) < 0)
2581 fatal_perror ("pipe");
2583 inf
= fdopen (pipe_fd
[0], "r");
2584 if (inf
== (FILE *) 0)
2585 fatal_perror ("fdopen");
2587 /* Trace if needed. */
2590 const char **p_argv
;
2593 for (p_argv
= &ldd_argv
[0]; (str
= *p_argv
) != (char *) 0; p_argv
++)
2594 fprintf (stderr
, " %s", str
);
2596 fprintf (stderr
, "\n");
2602 /* Spawn child ldd on pipe */
2605 fatal_perror (VFORK_STRING
);
2607 if (pid
== 0) /* child context */
2610 if (dup2 (pipe_fd
[1], 1) < 0)
2611 fatal_perror ("dup2 %d 1", pipe_fd
[1]);
2613 if (close (pipe_fd
[0]) < 0)
2614 fatal_perror ("close %d", pipe_fd
[0]);
2616 if (close (pipe_fd
[1]) < 0)
2617 fatal_perror ("close %d", pipe_fd
[1]);
2619 execv (ldd_file_name
, real_ldd_argv
);
2620 fatal_perror ("execv %s", ldd_file_name
);
2623 /* Parent context from here on. */
2624 int_handler
= (void (*) PROTO ((int))) signal (SIGINT
, SIG_IGN
);
2626 quit_handler
= (void (*) PROTO ((int))) signal (SIGQUIT
, SIG_IGN
);
2629 if (close (pipe_fd
[1]) < 0)
2630 fatal_perror ("close %d", pipe_fd
[1]);
2633 notice ("\nldd output with constructors/destructors.\n");
2635 /* Read each line of ldd output. */
2636 while (fgets (buf
, sizeof buf
, inf
) != (char *) 0)
2639 char *name
, *end
, *p
= buf
;
2641 /* Extract names of libraries and add to list. */
2642 PARSE_LDD_OUTPUT (p
);
2647 if (strncmp (name
, "not found", sizeof ("not found") - 1) == 0)
2648 fatal ("dynamic dependency %s not found", buf
);
2650 /* Find the end of the symbol name. */
2652 (ch2
= *end
) != '\0' && ch2
!= '\n' && !ISSPACE (ch2
) && ch2
!= '|';
2657 if (access (name
, R_OK
) == 0)
2658 add_to_list (&libraries
, name
);
2660 fatal ("unable to open dynamic dependency '%s'", buf
);
2663 fprintf (stderr
, "\t%s\n", buf
);
2666 fprintf (stderr
, "\n");
2668 if (fclose (inf
) != 0)
2669 fatal_perror ("fclose");
2671 do_wait (ldd_file_name
);
2673 signal (SIGINT
, int_handler
);
2675 signal (SIGQUIT
, quit_handler
);
2678 /* now iterate through the library list adding their symbols to
2680 for (list
= libraries
.first
; list
; list
= list
->next
)
2681 scan_prog_file (list
->name
, PASS_LIB
);
2684 #endif /* LDD_SUFFIX */
2685 #endif /* SUNOS4_SHARED_LIBRARIES */
2687 #endif /* OBJECT_FORMAT_NONE */
2691 * COFF specific stuff.
2694 #ifdef OBJECT_FORMAT_COFF
2696 #if defined(EXTENDED_COFF)
2697 # define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax)
2698 # define GCC_SYMENT SYMR
2699 # define GCC_OK_SYMBOL(X) ((X).st == stProc || (X).st == stGlobal)
2700 # define GCC_SYMINC(X) (1)
2701 # define GCC_SYMZERO(X) (SYMHEADER(X).isymMax)
2702 # define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0)
2704 # define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms)
2705 # define GCC_SYMENT SYMENT
2706 # define GCC_OK_SYMBOL(X) \
2707 (((X).n_sclass == C_EXT) && \
2708 ((X).n_scnum > N_UNDEF) && \
2710 || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \
2711 || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT))))
2712 # define GCC_UNDEF_SYMBOL(X) \
2713 (((X).n_sclass == C_EXT) && ((X).n_scnum == N_UNDEF))
2714 # define GCC_SYMINC(X) ((X).n_numaux+1)
2715 # define GCC_SYMZERO(X) 0
2716 # define GCC_CHECK_HDR(X) \
2717 ((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \
2718 || (HEADER (X).f_magic == 0757 && aix64_flag))
2721 extern char *ldgetname ();
2723 /* COFF version to scan the name list of the loaded program for
2724 the symbols g++ uses for static constructors and destructors.
2726 The constructor table begins at __CTOR_LIST__ and contains a count
2727 of the number of pointers (or -1 if the constructors are built in a
2728 separate section by the linker), followed by the pointers to the
2729 constructor functions, terminated with a null pointer. The
2730 destructor table has the same format, and begins at __DTOR_LIST__. */
2733 scan_prog_file (prog_name
, which_pass
)
2734 const char *prog_name
;
2735 enum pass which_pass
;
2737 LDFILE
*ldptr
= NULL
;
2738 int sym_index
, sym_count
;
2740 #ifdef COLLECT_EXPORT_LIST
2741 /* Should we generate an import list for given prog_name? */
2742 int import_flag
= (which_pass
== PASS_OBJ
? 0 : use_import_list (prog_name
));
2745 if (which_pass
!= PASS_FIRST
&& which_pass
!= PASS_OBJ
)
2748 #ifdef COLLECT_EXPORT_LIST
2749 /* We do not need scanning for some standard C libraries. */
2750 if (which_pass
== PASS_FIRST
&& ignore_library (prog_name
))
2753 /* On AIX we have a loop, because there is not much difference
2754 between an object and an archive. This trick allows us to
2755 eliminate scan_libraries() function. */
2759 /* Some platforms (e.g. OSF4) declare ldopen as taking a
2760 non-const char * filename parameter, even though it will not
2761 modify that string. So we must cast away const-ness here,
2762 which will cause -Wcast-qual to burp. */
2763 if ((ldptr
= ldopen ((char *)prog_name
, ldptr
)) != NULL
)
2765 if (! MY_ISCOFF (HEADER (ldptr
).f_magic
))
2766 fatal ("%s: not a COFF file", prog_name
);
2768 if (GCC_CHECK_HDR (ldptr
))
2770 sym_count
= GCC_SYMBOLS (ldptr
);
2771 sym_index
= GCC_SYMZERO (ldptr
);
2773 #ifdef COLLECT_EXPORT_LIST
2774 /* Is current archive member a shared object? */
2775 is_shared
= HEADER (ldptr
).f_flags
& F_SHROBJ
;
2778 while (sym_index
< sym_count
)
2782 if (ldtbread (ldptr
, sym_index
, &symbol
) <= 0)
2784 sym_index
+= GCC_SYMINC (symbol
);
2786 if (GCC_OK_SYMBOL (symbol
))
2790 if ((name
= ldgetname (ldptr
, &symbol
)) == NULL
)
2791 continue; /* should never happen */
2793 #ifdef XCOFF_DEBUGGING_INFO
2794 /* All AIX function names have a duplicate entry
2795 beginning with a dot. */
2800 switch (is_ctor_dtor (name
))
2804 add_to_list (&constructors
, name
);
2805 #ifdef COLLECT_EXPORT_LIST
2806 if (which_pass
== PASS_OBJ
)
2807 add_to_list (&exports
, name
);
2808 /* If this symbol was undefined and we are building
2809 an import list, we should add a symbol to this
2813 && is_in_list (name
, undefined
.first
))
2814 add_to_list (&imports
, name
);
2820 add_to_list (&destructors
, name
);
2821 #ifdef COLLECT_EXPORT_LIST
2822 if (which_pass
== PASS_OBJ
)
2823 add_to_list (&exports
, name
);
2824 /* If this symbol was undefined and we are building
2825 an import list, we should add a symbol to this
2829 && is_in_list (name
, undefined
.first
))
2830 add_to_list (&imports
, name
);
2834 #ifdef COLLECT_EXPORT_LIST
2836 #ifndef LD_INIT_SWITCH
2838 add_to_list (&constructors
, name
);
2843 #ifndef LD_INIT_SWITCH
2845 add_to_list (&destructors
, name
);
2852 add_to_list (&frame_tables
, name
);
2855 default: /* not a constructor or destructor */
2856 #ifdef COLLECT_EXPORT_LIST
2857 /* If we are building a shared object on AIX we need
2858 to explicitly export all global symbols or add
2859 them to import list. */
2862 if (which_pass
== PASS_OBJ
&& (! export_flag
))
2863 add_to_list (&exports
, name
);
2864 else if (! is_shared
2865 && which_pass
== PASS_FIRST
2867 && is_in_list(name
, undefined
.first
))
2868 add_to_list (&imports
, name
);
2875 #if !defined(EXTENDED_COFF)
2876 fprintf (stderr
, "\tsec=%d class=%d type=%s%o %s\n",
2877 symbol
.n_scnum
, symbol
.n_sclass
,
2878 (symbol
.n_type
? "0" : ""), symbol
.n_type
,
2882 "\tiss = %5d, value = %5ld, index = %5d, name = %s\n",
2883 symbol
.iss
, (long) symbol
.value
, symbol
.index
, name
);
2886 #ifdef COLLECT_EXPORT_LIST
2887 /* If we are building a shared object we should collect
2888 information about undefined symbols for later
2889 import list generation. */
2890 else if (shared_obj
&& GCC_UNDEF_SYMBOL (symbol
))
2894 if ((name
= ldgetname (ldptr
, &symbol
)) == NULL
)
2895 continue; /* should never happen */
2897 /* All AIX function names have a duplicate entry
2898 beginning with a dot. */
2901 add_to_list (&undefined
, name
);
2906 #ifdef COLLECT_EXPORT_LIST
2909 /* If archive contains both 32-bit and 64-bit objects,
2910 we want to skip objects in other mode so mismatch normal. */
2912 fprintf (stderr
, "%s : magic=%o aix64=%d mismatch\n",
2913 prog_name
, HEADER (ldptr
).f_magic
, aix64_flag
);
2919 fatal ("%s: cannot open as COFF file", prog_name
);
2921 #ifdef COLLECT_EXPORT_LIST
2922 /* On AIX loop continues while there are more members in archive. */
2924 while (ldclose (ldptr
) == FAILURE
);
2926 /* Otherwise we simply close ldptr. */
2927 (void) ldclose(ldptr
);
2932 #ifdef COLLECT_EXPORT_LIST
2934 /* This new function is used to decide whether we should
2935 generate import list for an object or to use it directly. */
2937 use_import_list (prog_name
)
2938 const char *prog_name
;
2942 /* If we do not build a shared object then import list should not be used. */
2943 if (! shared_obj
) return 0;
2945 /* Currently we check only for libgcc, but this can be changed in future. */
2946 p
= strstr (prog_name
, "libgcc.a");
2947 if (p
!= 0 && (strlen (p
) == sizeof ("libgcc.a") - 1))
2952 /* Given a library name without "lib" prefix, this function
2953 returns a full library name including a path. */
2955 resolve_lib_name (name
)
2961 for (i
= 0; libpaths
[i
]; i
++)
2962 if (libpaths
[i
]->max_len
> l
)
2963 l
= libpaths
[i
]->max_len
;
2965 lib_buf
= xmalloc (l
+ strlen(name
) + 10);
2967 for (i
= 0; libpaths
[i
]; i
++)
2969 struct prefix_list
*list
= libpaths
[i
]->plist
;
2970 for (; list
; list
= list
->next
)
2972 for (j
= 0; libexts
[j
]; j
++)
2974 /* The following lines are needed because path_prefix list
2975 may contain directories both with trailing '/' and
2978 if (list
->prefix
[strlen(list
->prefix
)-1] != '/')
2980 sprintf (lib_buf
, "%s%slib%s.%s",
2981 list
->prefix
, p
, name
, libexts
[j
]);
2982 if (debug
) fprintf (stderr
, "searching for: %s\n", lib_buf
);
2983 if (file_exists (lib_buf
))
2985 if (debug
) fprintf (stderr
, "found: %s\n", lib_buf
);
2992 fprintf (stderr
, "not found\n");
2994 fatal ("Library lib%s not found", name
);
2998 /* Array of standard AIX libraries which should not
2999 be scanned for ctors/dtors. */
3000 static const char *aix_std_libs
[] = {
3005 "/usr/lib/libc_r.a",
3006 "/usr/lib/threads/libc.a",
3007 "/usr/ccs/lib/libc.a",
3008 "/usr/ccs/lib/libc_r.a",
3012 /* This function checks the filename and returns 1
3013 if this name matches the location of a standard AIX library. */
3015 ignore_library (name
)
3018 const char **p
= &aix_std_libs
[0];
3019 while (*p
++ != NULL
)
3020 if (! strcmp (name
, *p
)) return 1;
3026 #endif /* OBJECT_FORMAT_COFF */
3030 * OSF/rose specific stuff.
3033 #ifdef OBJECT_FORMAT_ROSE
3035 /* Union of the various load commands */
3037 typedef union load_union
3039 ldc_header_t hdr
; /* common header */
3040 load_cmd_map_command_t map
; /* map indexing other load cmds */
3041 interpreter_command_t iprtr
; /* interpreter pathname */
3042 strings_command_t str
; /* load commands strings section */
3043 region_command_t region
; /* region load command */
3044 reloc_command_t reloc
; /* relocation section */
3045 package_command_t pkg
; /* package load command */
3046 symbols_command_t sym
; /* symbol sections */
3047 entry_command_t ent
; /* program start section */
3048 gen_info_command_t info
; /* object information */
3049 func_table_command_t func
; /* function constructors/destructors */
3052 /* Structure to point to load command and data section in memory. */
3054 typedef struct load_all
3056 load_union_t
*load
; /* load command */
3057 char *section
; /* pointer to section */
3060 /* Structure to contain information about a file mapped into memory. */
3064 char *start
; /* start of map */
3065 char *name
; /* filename */
3066 long size
; /* size of the file */
3067 long rounded_size
; /* size rounded to page boundary */
3068 int fd
; /* file descriptor */
3069 int rw
; /* != 0 if opened read/write */
3070 int use_mmap
; /* != 0 if mmap'ed */
3073 extern int decode_mach_o_hdr ();
3074 extern int encode_mach_o_hdr ();
3076 static void add_func_table
PROTO((mo_header_t
*, load_all_t
*,
3077 symbol_info_t
*, int));
3078 static void print_header
PROTO((mo_header_t
*));
3079 static void print_load_command
PROTO((load_union_t
*, size_t, int));
3080 static void bad_header
PROTO((int));
3081 static struct file_info
*read_file
PROTO((const char *, int, int));
3082 static void end_file
PROTO((struct file_info
*));
3084 /* OSF/rose specific version to scan the name list of the loaded
3085 program for the symbols g++ uses for static constructors and
3088 The constructor table begins at __CTOR_LIST__ and contains a count
3089 of the number of pointers (or -1 if the constructors are built in a
3090 separate section by the linker), followed by the pointers to the
3091 constructor functions, terminated with a null pointer. The
3092 destructor table has the same format, and begins at __DTOR_LIST__. */
3095 scan_prog_file (prog_name
, which_pass
)
3096 const char *prog_name
;
3097 enum pass which_pass
;
3101 load_all_t
*load_array
;
3102 load_all_t
*load_end
;
3103 load_all_t
*load_cmd
;
3104 int symbol_load_cmds
;
3110 struct file_info
*obj_file
;
3112 mo_lcid_t cmd_strings
= -1;
3113 symbol_info_t
*main_sym
= 0;
3114 int rw
= (which_pass
!= PASS_FIRST
);
3116 prog_fd
= open (prog_name
, (rw
) ? O_RDWR
: O_RDONLY
);
3118 fatal_perror ("open %s", prog_name
);
3120 obj_file
= read_file (prog_name
, prog_fd
, rw
);
3121 obj
= obj_file
->start
;
3123 status
= decode_mach_o_hdr (obj
, MO_SIZEOF_RAW_HDR
, MOH_HEADER_VERSION
, &hdr
);
3124 if (status
!= MO_HDR_CONV_SUCCESS
)
3125 bad_header (status
);
3128 /* Do some basic sanity checks. Note we explicitly use the big endian magic number,
3129 since the hardware will automatically swap bytes for us on loading little endian
3132 #ifndef CROSS_COMPILE
3133 if (hdr
.moh_magic
!= MOH_MAGIC_MSB
3134 || hdr
.moh_header_version
!= MOH_HEADER_VERSION
3135 || hdr
.moh_byte_order
!= OUR_BYTE_ORDER
3136 || hdr
.moh_data_rep_id
!= OUR_DATA_REP_ID
3137 || hdr
.moh_cpu_type
!= OUR_CPU_TYPE
3138 || hdr
.moh_cpu_subtype
!= OUR_CPU_SUBTYPE
3139 || hdr
.moh_vendor_type
!= OUR_VENDOR_TYPE
)
3141 fatal ("incompatibilities between object file & expected values");
3146 print_header (&hdr
);
3148 offset
= hdr
.moh_first_cmd_off
;
3149 load_end
= load_array
3150 = (load_all_t
*) xcalloc (sizeof (load_all_t
), hdr
.moh_n_load_cmds
+ 2);
3152 /* Build array of load commands, calculating the offsets */
3153 for (i
= 0; i
< hdr
.moh_n_load_cmds
; i
++)
3155 load_union_t
*load_hdr
; /* load command header */
3157 load_cmd
= load_end
++;
3158 load_hdr
= (load_union_t
*) (obj
+ offset
);
3160 /* If modifying the program file, copy the header. */
3163 load_union_t
*ptr
= (load_union_t
*) xmalloc (load_hdr
->hdr
.ldci_cmd_size
);
3164 bcopy ((char *)load_hdr
, (char *)ptr
, load_hdr
->hdr
.ldci_cmd_size
);
3167 /* null out old command map, because we will rewrite at the end. */
3168 if (ptr
->hdr
.ldci_cmd_type
== LDC_CMD_MAP
)
3170 cmd_strings
= ptr
->map
.lcm_ld_cmd_strings
;
3171 ptr
->hdr
.ldci_cmd_type
= LDC_UNDEFINED
;
3175 load_cmd
->load
= load_hdr
;
3176 if (load_hdr
->hdr
.ldci_section_off
> 0)
3177 load_cmd
->section
= obj
+ load_hdr
->hdr
.ldci_section_off
;
3180 print_load_command (load_hdr
, offset
, i
);
3182 offset
+= load_hdr
->hdr
.ldci_cmd_size
;
3185 /* If the last command is the load command map and is not undefined,
3186 decrement the count of load commands. */
3187 if (rw
&& load_end
[-1].load
->hdr
.ldci_cmd_type
== LDC_UNDEFINED
)
3190 hdr
.moh_n_load_cmds
--;
3193 /* Go through and process each symbol table section. */
3194 symbol_load_cmds
= 0;
3195 for (load_cmd
= load_array
; load_cmd
< load_end
; load_cmd
++)
3197 load_union_t
*load_hdr
= load_cmd
->load
;
3199 if (load_hdr
->hdr
.ldci_cmd_type
== LDC_SYMBOLS
)
3205 const char *kind
= "unknown";
3207 switch (load_hdr
->sym
.symc_kind
)
3209 case SYMC_IMPORTS
: kind
= "imports"; break;
3210 case SYMC_DEFINED_SYMBOLS
: kind
= "defined"; break;
3211 case SYMC_STABS
: kind
= "stabs"; break;
3214 notice ("\nProcessing symbol table #%d, offset = 0x%.8lx, kind = %s\n",
3215 symbol_load_cmds
, load_hdr
->hdr
.ldci_section_off
, kind
);
3218 if (load_hdr
->sym
.symc_kind
!= SYMC_DEFINED_SYMBOLS
)
3221 str_sect
= load_array
[load_hdr
->sym
.symc_strings_section
].section
;
3222 if (str_sect
== (char *) 0)
3223 fatal ("string section missing");
3225 if (load_cmd
->section
== (char *) 0)
3226 fatal ("section pointer missing");
3228 num_syms
= load_hdr
->sym
.symc_nentries
;
3229 for (i
= 0; i
< num_syms
; i
++)
3231 symbol_info_t
*sym
= ((symbol_info_t
*) load_cmd
->section
) + i
;
3232 char *name
= sym
->si_name
.symbol_name
+ str_sect
;
3239 char *n
= name
+ strlen (name
) - strlen (NAME__MAIN
);
3241 if ((n
- name
) < 0 || strcmp (n
, NAME__MAIN
))
3251 switch (is_ctor_dtor (name
))
3254 add_to_list (&constructors
, name
);
3258 add_to_list (&destructors
, name
);
3261 default: /* not a constructor or destructor */
3267 fprintf (stderr
, "\ttype = 0x%.4x, sc = 0x%.2x, flags = 0x%.8x, name = %.30s\n",
3268 sym
->si_type
, sym
->si_sc_type
, sym
->si_flags
, name
);
3273 if (symbol_load_cmds
== 0)
3274 fatal ("no symbol table found");
3276 /* Update the program file now, rewrite header and load commands. At present,
3277 we assume that there is enough space after the last load command to insert
3278 one more. Since the first section written out is page aligned, and the
3279 number of load commands is small, this is ok for the present. */
3283 load_union_t
*load_map
;
3286 if (cmd_strings
== -1)
3287 fatal ("no cmd_strings found");
3289 /* Add __main to initializer list.
3290 If we are building a program instead of a shared library, do not
3291 do anything, since in the current version, you cannot do mallocs
3292 and such in the constructors. */
3294 if (main_sym
!= (symbol_info_t
*) 0
3295 && ((hdr
.moh_flags
& MOH_EXECABLE_F
) == 0))
3296 add_func_table (&hdr
, load_array
, main_sym
, FNTC_INITIALIZATION
);
3299 notice ("\nUpdating header and load commands.\n\n");
3301 hdr
.moh_n_load_cmds
++;
3302 size
= sizeof (load_cmd_map_command_t
) + (sizeof (mo_offset_t
) * (hdr
.moh_n_load_cmds
- 1));
3304 /* Create new load command map. */
3306 notice ("load command map, %d cmds, new size %ld.\n",
3307 (int) hdr
.moh_n_load_cmds
, (long) size
);
3309 load_map
= (load_union_t
*) xcalloc (1, size
);
3310 load_map
->map
.ldc_header
.ldci_cmd_type
= LDC_CMD_MAP
;
3311 load_map
->map
.ldc_header
.ldci_cmd_size
= size
;
3312 load_map
->map
.lcm_ld_cmd_strings
= cmd_strings
;
3313 load_map
->map
.lcm_nentries
= hdr
.moh_n_load_cmds
;
3314 load_array
[hdr
.moh_n_load_cmds
-1].load
= load_map
;
3316 offset
= hdr
.moh_first_cmd_off
;
3317 for (i
= 0; i
< hdr
.moh_n_load_cmds
; i
++)
3319 load_map
->map
.lcm_map
[i
] = offset
;
3320 if (load_array
[i
].load
->hdr
.ldci_cmd_type
== LDC_CMD_MAP
)
3321 hdr
.moh_load_map_cmd_off
= offset
;
3323 offset
+= load_array
[i
].load
->hdr
.ldci_cmd_size
;
3326 hdr
.moh_sizeofcmds
= offset
- MO_SIZEOF_RAW_HDR
;
3329 print_header (&hdr
);
3332 status
= encode_mach_o_hdr (&hdr
, obj
, MO_SIZEOF_RAW_HDR
);
3333 if (status
!= MO_HDR_CONV_SUCCESS
)
3334 bad_header (status
);
3337 notice ("writing load commands.\n\n");
3339 /* Write load commands */
3340 offset
= hdr
.moh_first_cmd_off
;
3341 for (i
= 0; i
< hdr
.moh_n_load_cmds
; i
++)
3343 load_union_t
*load_hdr
= load_array
[i
].load
;
3344 size_t size
= load_hdr
->hdr
.ldci_cmd_size
;
3347 print_load_command (load_hdr
, offset
, i
);
3349 bcopy ((char *) load_hdr
, (char *) (obj
+ offset
), size
);
3354 end_file (obj_file
);
3356 if (close (prog_fd
))
3357 fatal_perror ("close %s", prog_name
);
3360 fprintf (stderr
, "\n");
3364 /* Add a function table to the load commands to call a function
3365 on initiation or termination of the process. */
3368 add_func_table (hdr_p
, load_array
, sym
, type
)
3369 mo_header_t
*hdr_p
; /* pointer to global header */
3370 load_all_t
*load_array
; /* array of ptrs to load cmds */
3371 symbol_info_t
*sym
; /* pointer to symbol entry */
3372 int type
; /* fntc_type value */
3374 /* Add a new load command. */
3375 int num_cmds
= ++hdr_p
->moh_n_load_cmds
;
3376 int load_index
= num_cmds
- 1;
3377 size_t size
= sizeof (func_table_command_t
) + sizeof (mo_addr_t
);
3378 load_union_t
*ptr
= xcalloc (1, size
);
3379 load_all_t
*load_cmd
;
3382 /* Set the unresolved address bit in the header to force the loader to be
3383 used, since kernel exec does not call the initialization functions. */
3384 hdr_p
->moh_flags
|= MOH_UNRESOLVED_F
;
3386 load_cmd
= &load_array
[load_index
];
3387 load_cmd
->load
= ptr
;
3388 load_cmd
->section
= (char *) 0;
3390 /* Fill in func table load command. */
3391 ptr
->func
.ldc_header
.ldci_cmd_type
= LDC_FUNC_TABLE
;
3392 ptr
->func
.ldc_header
.ldci_cmd_size
= size
;
3393 ptr
->func
.ldc_header
.ldci_section_off
= 0;
3394 ptr
->func
.ldc_header
.ldci_section_len
= 0;
3395 ptr
->func
.fntc_type
= type
;
3396 ptr
->func
.fntc_nentries
= 1;
3398 /* copy address, turn it from abs. address to (region,offset) if necessary. */
3399 /* Is the symbol already expressed as (region, offset)? */
3400 if ((sym
->si_flags
& SI_ABSOLUTE_VALUE_F
) == 0)
3402 ptr
->func
.fntc_entry_loc
[i
].adr_lcid
= sym
->si_value
.def_val
.adr_lcid
;
3403 ptr
->func
.fntc_entry_loc
[i
].adr_sctoff
= sym
->si_value
.def_val
.adr_sctoff
;
3406 /* If not, figure out which region it's in. */
3409 mo_vm_addr_t addr
= sym
->si_value
.abs_val
;
3412 for (i
= 0; i
< load_index
; i
++)
3414 if (load_array
[i
].load
->hdr
.ldci_cmd_type
== LDC_REGION
)
3416 region_command_t
*region_ptr
= &load_array
[i
].load
->region
;
3418 if ((region_ptr
->regc_flags
& REG_ABS_ADDR_F
) != 0
3419 && addr
>= region_ptr
->regc_addr
.vm_addr
3420 && addr
<= region_ptr
->regc_addr
.vm_addr
+ region_ptr
->regc_vm_size
)
3422 ptr
->func
.fntc_entry_loc
[0].adr_lcid
= i
;
3423 ptr
->func
.fntc_entry_loc
[0].adr_sctoff
= addr
- region_ptr
->regc_addr
.vm_addr
;
3431 fatal ("could not convert 0x%l.8x into a region", addr
);
3435 notice ("%s function, region %d, offset = %ld (0x%.8lx)\n",
3436 type
== FNTC_INITIALIZATION
? "init" : "term",
3437 (int) ptr
->func
.fntc_entry_loc
[i
].adr_lcid
,
3438 (long) ptr
->func
.fntc_entry_loc
[i
].adr_sctoff
,
3439 (long) ptr
->func
.fntc_entry_loc
[i
].adr_sctoff
);
3444 /* Print the global header for an OSF/rose object. */
3447 print_header (hdr_ptr
)
3448 mo_header_t
*hdr_ptr
;
3450 fprintf (stderr
, "\nglobal header:\n");
3451 fprintf (stderr
, "\tmoh_magic = 0x%.8lx\n", hdr_ptr
->moh_magic
);
3452 fprintf (stderr
, "\tmoh_major_version = %d\n", (int)hdr_ptr
->moh_major_version
);
3453 fprintf (stderr
, "\tmoh_minor_version = %d\n", (int)hdr_ptr
->moh_minor_version
);
3454 fprintf (stderr
, "\tmoh_header_version = %d\n", (int)hdr_ptr
->moh_header_version
);
3455 fprintf (stderr
, "\tmoh_max_page_size = %d\n", (int)hdr_ptr
->moh_max_page_size
);
3456 fprintf (stderr
, "\tmoh_byte_order = %d\n", (int)hdr_ptr
->moh_byte_order
);
3457 fprintf (stderr
, "\tmoh_data_rep_id = %d\n", (int)hdr_ptr
->moh_data_rep_id
);
3458 fprintf (stderr
, "\tmoh_cpu_type = %d\n", (int)hdr_ptr
->moh_cpu_type
);
3459 fprintf (stderr
, "\tmoh_cpu_subtype = %d\n", (int)hdr_ptr
->moh_cpu_subtype
);
3460 fprintf (stderr
, "\tmoh_vendor_type = %d\n", (int)hdr_ptr
->moh_vendor_type
);
3461 fprintf (stderr
, "\tmoh_load_map_cmd_off = %d\n", (int)hdr_ptr
->moh_load_map_cmd_off
);
3462 fprintf (stderr
, "\tmoh_first_cmd_off = %d\n", (int)hdr_ptr
->moh_first_cmd_off
);
3463 fprintf (stderr
, "\tmoh_sizeofcmds = %d\n", (int)hdr_ptr
->moh_sizeofcmds
);
3464 fprintf (stderr
, "\tmon_n_load_cmds = %d\n", (int)hdr_ptr
->moh_n_load_cmds
);
3465 fprintf (stderr
, "\tmoh_flags = 0x%.8lx", (long)hdr_ptr
->moh_flags
);
3467 if (hdr_ptr
->moh_flags
& MOH_RELOCATABLE_F
)
3468 fprintf (stderr
, ", relocatable");
3470 if (hdr_ptr
->moh_flags
& MOH_LINKABLE_F
)
3471 fprintf (stderr
, ", linkable");
3473 if (hdr_ptr
->moh_flags
& MOH_EXECABLE_F
)
3474 fprintf (stderr
, ", execable");
3476 if (hdr_ptr
->moh_flags
& MOH_EXECUTABLE_F
)
3477 fprintf (stderr
, ", executable");
3479 if (hdr_ptr
->moh_flags
& MOH_UNRESOLVED_F
)
3480 fprintf (stderr
, ", unresolved");
3482 fprintf (stderr
, "\n\n");
3487 /* Print a short summary of a load command. */
3490 print_load_command (load_hdr
, offset
, number
)
3491 load_union_t
*load_hdr
;
3495 mo_long_t type
= load_hdr
->hdr
.ldci_cmd_type
;
3496 const char *type_str
= (char *) 0;
3500 case LDC_UNDEFINED
: type_str
= "UNDEFINED"; break;
3501 case LDC_CMD_MAP
: type_str
= "CMD_MAP"; break;
3502 case LDC_INTERPRETER
: type_str
= "INTERPRETER"; break;
3503 case LDC_STRINGS
: type_str
= "STRINGS"; break;
3504 case LDC_REGION
: type_str
= "REGION"; break;
3505 case LDC_RELOC
: type_str
= "RELOC"; break;
3506 case LDC_PACKAGE
: type_str
= "PACKAGE"; break;
3507 case LDC_SYMBOLS
: type_str
= "SYMBOLS"; break;
3508 case LDC_ENTRY
: type_str
= "ENTRY"; break;
3509 case LDC_FUNC_TABLE
: type_str
= "FUNC_TABLE"; break;
3510 case LDC_GEN_INFO
: type_str
= "GEN_INFO"; break;
3514 "cmd %2d, sz: 0x%.2lx, coff: 0x%.3lx, doff: 0x%.6lx, dlen: 0x%.6lx",
3516 (long) load_hdr
->hdr
.ldci_cmd_size
,
3518 (long) load_hdr
->hdr
.ldci_section_off
,
3519 (long) load_hdr
->hdr
.ldci_section_len
);
3521 if (type_str
== (char *) 0)
3522 fprintf (stderr
, ", ty: unknown (%ld)\n", (long) type
);
3524 else if (type
!= LDC_REGION
)
3525 fprintf (stderr
, ", ty: %s\n", type_str
);
3529 const char *region
= "";
3530 switch (load_hdr
->region
.regc_usage_type
)
3532 case REG_TEXT_T
: region
= ", .text"; break;
3533 case REG_DATA_T
: region
= ", .data"; break;
3534 case REG_BSS_T
: region
= ", .bss"; break;
3535 case REG_GLUE_T
: region
= ", .glue"; break;
3536 #if defined (REG_RDATA_T) && defined (REG_SDATA_T) && defined (REG_SBSS_T) /*mips*/
3537 case REG_RDATA_T
: region
= ", .rdata"; break;
3538 case REG_SDATA_T
: region
= ", .sdata"; break;
3539 case REG_SBSS_T
: region
= ", .sbss"; break;
3543 fprintf (stderr
, ", ty: %s, vaddr: 0x%.8lx, vlen: 0x%.6lx%s\n",
3545 (long) load_hdr
->region
.regc_vm_addr
,
3546 (long) load_hdr
->region
.regc_vm_size
,
3554 /* Fatal error when {en,de}code_mach_o_header fails. */
3562 case MO_ERROR_BAD_MAGIC
: fatal ("bad magic number");
3563 case MO_ERROR_BAD_HDR_VERS
: fatal ("bad header version");
3564 case MO_ERROR_BAD_RAW_HDR_VERS
: fatal ("bad raw header version");
3565 case MO_ERROR_BUF2SML
: fatal ("raw header buffer too small");
3566 case MO_ERROR_OLD_RAW_HDR_FILE
: fatal ("old raw header file");
3567 case MO_ERROR_UNSUPPORTED_VERS
: fatal ("unsupported version");
3569 fatal ("unknown {de,en}code_mach_o_hdr return value %d", status
);
3574 /* Read a file into a memory buffer. */
3576 static struct file_info
*
3577 read_file (name
, fd
, rw
)
3578 const char *name
; /* filename */
3579 int fd
; /* file descriptor */
3580 int rw
; /* read/write */
3582 struct stat stat_pkt
;
3583 struct file_info
*p
= (struct file_info
*) xcalloc (sizeof (struct file_info
), 1);
3585 static int page_size
;
3588 if (fstat (fd
, &stat_pkt
) < 0)
3589 fatal_perror ("fstat %s", name
);
3592 p
->size
= stat_pkt
.st_size
;
3593 p
->rounded_size
= stat_pkt
.st_size
;
3599 fprintf (stderr
, "mmap %s, %s\n", name
, (rw
) ? "read/write" : "read-only");
3602 page_size
= sysconf (_SC_PAGE_SIZE
);
3604 p
->rounded_size
= ((p
->size
+ page_size
- 1) / page_size
) * page_size
;
3605 p
->start
= mmap ((caddr_t
) 0,
3606 (rw
) ? p
->rounded_size
: p
->size
,
3607 (rw
) ? (PROT_READ
| PROT_WRITE
) : PROT_READ
,
3608 MAP_FILE
| MAP_VARIABLE
| MAP_SHARED
,
3612 if (p
->start
!= (char *) 0 && p
->start
!= (char *) -1)
3616 #endif /* USE_MMAP */
3621 fprintf (stderr
, "read %s\n", name
);
3624 p
->start
= xmalloc (p
->size
);
3625 if (lseek (fd
, 0L, SEEK_SET
) < 0)
3626 fatal_perror ("lseek %s 0", name
);
3628 len
= read (fd
, p
->start
, p
->size
);
3630 fatal_perror ("read %s", name
);
3633 fatal ("read %ld bytes, expected %ld, from %s", len
, p
->size
, name
);
3639 /* Do anything necessary to write a file back from memory. */
3643 struct file_info
*ptr
; /* file information block */
3651 fprintf (stderr
, "msync %s\n", ptr
->name
);
3653 if (msync (ptr
->start
, ptr
->rounded_size
, MS_ASYNC
))
3654 fatal_perror ("msync %s", ptr
->name
);
3658 fprintf (stderr
, "munmap %s\n", ptr
->name
);
3660 if (munmap (ptr
->start
, ptr
->size
))
3661 fatal_perror ("munmap %s", ptr
->name
);
3664 #endif /* USE_MMAP */
3671 fprintf (stderr
, "write %s\n", ptr
->name
);
3673 if (lseek (ptr
->fd
, 0L, SEEK_SET
) < 0)
3674 fatal_perror ("lseek %s 0", ptr
->name
);
3676 len
= write (ptr
->fd
, ptr
->start
, ptr
->size
);
3678 fatal_perror ("write %s", ptr
->name
);
3680 if (len
!= ptr
->size
)
3681 fatal ("wrote %ld bytes, expected %ld, to %s", len
, ptr
->size
, ptr
->name
);
3690 #endif /* OBJECT_FORMAT_ROSE */