1 /* Collect static initialization info into data structures that can be
2 traversed by C++ initialization and finalization routines.
3 Copyright (C) 1992, 93-97, 1998 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. */
37 #include "gansidecl.h"
43 extern char *sys_errlist
[];
49 /* Obstack allocation and deallocation routines. */
50 #define obstack_chunk_alloc xmalloc
51 #define obstack_chunk_free free
58 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
61 #define WTERMSIG(S) ((S) & 0x7f)
64 #define WIFEXITED(S) (((S) & 0xff) == 0)
67 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
70 extern char *choose_temp_base ();
72 /* On certain systems, we have code that works by scanning the object file
73 directly. But this code uses system-specific header files and library
74 functions, so turn it off in a cross-compiler. Likewise, the names of
75 the utilities are not correct for a cross-compiler; we have to hope that
76 cross-versions are in the proper directories. */
79 #undef SUNOS4_SHARED_LIBRARIES
80 #undef OBJECT_FORMAT_COFF
81 #undef OBJECT_FORMAT_ROSE
83 #undef REAL_LD_FILE_NAME
84 #undef REAL_NM_FILE_NAME
85 #undef REAL_STRIP_FILE_NAME
88 /* If we cannot use a special method, use the ordinary one:
89 run nm to find what symbols are present.
90 In a cross-compiler, this means you need a cross nm,
91 but that is not quite as unpleasant as special headers. */
93 #if !defined (OBJECT_FORMAT_COFF) && !defined (OBJECT_FORMAT_ROSE)
94 #define OBJECT_FORMAT_NONE
97 #ifdef OBJECT_FORMAT_COFF
106 /* Many versions of ldfcn.h define these. */
114 /* Some systems have an ISCOFF macro, but others do not. In some cases
115 the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines
116 that either do not have an ISCOFF macro in /usr/include or for those
117 where it is wrong. */
120 #define MY_ISCOFF(X) ISCOFF (X)
123 #endif /* OBJECT_FORMAT_COFF */
125 #ifdef OBJECT_FORMAT_ROSE
132 #include <sys/mman.h>
136 #include <mach_o_format.h>
137 #include <mach_o_header.h>
138 #include <mach_o_vals.h>
139 #include <mach_o_types.h>
141 #endif /* OBJECT_FORMAT_ROSE */
143 #ifdef OBJECT_FORMAT_NONE
145 /* Default flags to pass to nm. */
147 #define NM_FLAGS "-p"
150 #endif /* OBJECT_FORMAT_NONE */
152 /* Some systems use __main in a way incompatible with its use in gcc, in these
153 cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
154 give the same symbol without quotes for an alternative entry point. You
155 must define both, or neither. */
157 #define NAME__MAIN "__main"
158 #define SYMBOL__MAIN __main
161 #if defined (LDD_SUFFIX) || SUNOS4_SHARED_LIBRARIES
162 #define SCAN_LIBRARIES
166 int do_collecting
= 1;
168 int do_collecting
= 0;
171 /* Linked lists of constructor and destructor names. */
187 /* Enumeration giving which pass this is for scanning the program file. */
190 PASS_FIRST
, /* without constructors */
191 PASS_OBJ
, /* individual objects */
192 PASS_LIB
, /* looking for shared libraries */
193 PASS_SECOND
/* with constructors linked in */
196 #ifndef NO_SYS_SIGLIST
197 #ifndef SYS_SIGLIST_DECLARED
198 extern char *sys_siglist
[];
201 extern char *version_string
;
203 int vflag
; /* true if -v */
204 static int rflag
; /* true if -r */
205 static int strip_flag
; /* true if -s */
206 #ifdef COLLECT_EXPORT_LIST
207 static int export_flag
; /* true if -bE */
210 int debug
; /* true if -debug */
212 static int shared_obj
; /* true if -shared */
214 static int temp_filename_length
; /* Length of temp_filename */
215 static char *temp_filename
; /* Base of temp filenames */
216 static char *c_file
; /* <xxx>.c for constructor/destructor list. */
217 static char *o_file
; /* <xxx>.o for constructor/destructor list. */
218 #ifdef COLLECT_EXPORT_LIST
219 static char *export_file
; /* <xxx>.x for AIX export list. */
220 static char *import_file
; /* <xxx>.p for AIX import list. */
222 char *ldout
; /* File for ld errors. */
223 static char *output_file
; /* Output file for ld. */
224 static char *nm_file_name
; /* pathname of nm */
226 static char *ldd_file_name
; /* pathname of ldd (or equivalent) */
228 static char *strip_file_name
; /* pathname of strip */
229 char *c_file_name
; /* pathname of gcc */
230 static char *initname
, *fininame
; /* names of init and fini funcs */
232 static struct head constructors
; /* list of constructors found */
233 static struct head destructors
; /* list of destructors found */
234 #ifdef COLLECT_EXPORT_LIST
235 static struct head exports
; /* list of exported symbols */
236 static struct head imports
; /* list of imported symbols */
237 static struct head undefined
; /* list of undefined symbols */
239 static struct head frame_tables
; /* list of frame unwind info tables */
241 struct obstack temporary_obstack
;
242 struct obstack permanent_obstack
;
243 char * temporary_firstobj
;
245 /* Defined in the automatically-generated underscore.c. */
246 extern int prepends_underscore
;
248 extern char *mktemp ();
249 extern FILE *fdopen ();
251 #ifndef GET_ENVIRONMENT
252 #define GET_ENVIRONMENT(ENV_VALUE,ENV_NAME) ENV_VALUE = getenv (ENV_NAME)
255 /* Structure to hold all the directories in which to search for files to
260 char *prefix
; /* String to prepend to the path. */
261 struct prefix_list
*next
; /* Next in linked list. */
266 struct prefix_list
*plist
; /* List of prefixes to try */
267 int max_len
; /* Max length of a prefix in PLIST */
268 char *name
; /* Name of this list (used in config stuff) */
271 #ifdef COLLECT_EXPORT_LIST
272 /* Lists to keep libraries to be scanned for global constructors/destructors. */
273 static struct head libs
; /* list of libraries */
274 static struct path_prefix cmdline_lib_dirs
; /* directories specified with -L */
275 static struct path_prefix libpath_lib_dirs
; /* directories in LIBPATH */
276 static struct path_prefix
*libpaths
[3] = {&cmdline_lib_dirs
,
277 &libpath_lib_dirs
, NULL
};
278 static char *libexts
[3] = {"a", "so", NULL
}; /* possible library extentions */
281 static void handler
PROTO((int));
282 static int is_ctor_dtor
PROTO((char *));
283 static char *find_a_file
PROTO((struct path_prefix
*, char *));
284 static void add_prefix
PROTO((struct path_prefix
*, char *));
285 static void prefix_from_env
PROTO((char *, struct path_prefix
*));
286 static void prefix_from_string
PROTO((char *, struct path_prefix
*));
287 static void do_wait
PROTO((char *));
288 static void fork_execute
PROTO((char *, char **));
289 static void maybe_unlink
PROTO((char *));
290 static void add_to_list
PROTO((struct head
*, char *));
291 static void write_list
PROTO((FILE *, char *, struct id
*));
292 #ifdef COLLECT_EXPORT_LIST
293 static void dump_list
PROTO((FILE *, char *, struct id
*));
296 static void dump_prefix_list
PROTO((FILE *, char *, struct prefix_list
*));
298 static void write_list_with_asm
PROTO((FILE *, char *, struct id
*));
299 static void write_c_file
PROTO((FILE *, char *));
300 static void scan_prog_file
PROTO((char *, enum pass
));
301 #ifdef SCAN_LIBRARIES
302 static void scan_libraries
PROTO((char *));
304 #ifdef COLLECT_EXPORT_LIST
305 static int is_in_list
PROTO((char *, struct id
*));
306 static void write_export_file
PROTO((FILE *));
307 static void write_import_file
PROTO((FILE *));
308 static char *resolve_lib_name
PROTO((char *));
309 static int use_import_list
PROTO((char *));
310 static int ignore_library
PROTO((char *));
330 while ((fd
= dup (oldfd
)) != newfd
&& fd
>= 0) /* good enough for low fd's */
333 close (fdtmp
[--fdx
]);
349 static char buffer
[30];
353 if (e
> 0 && e
< sys_nerr
)
354 return sys_errlist
[e
];
356 sprintf (buffer
, "Unknown error %d", e
);
361 /* Delete tempfiles and exit function. */
364 collect_exit (status
)
367 if (c_file
!= 0 && c_file
[0])
368 maybe_unlink (c_file
);
370 if (o_file
!= 0 && o_file
[0])
371 maybe_unlink (o_file
);
373 #ifdef COLLECT_EXPORT_LIST
374 if (export_file
!= 0 && export_file
[0])
375 maybe_unlink (export_file
);
377 if (import_file
!= 0 && import_file
[0])
378 maybe_unlink (import_file
);
381 if (ldout
!= 0 && ldout
[0])
384 maybe_unlink (ldout
);
387 if (status
!= 0 && output_file
!= 0 && output_file
[0])
388 maybe_unlink (output_file
);
394 /* Die when sys call fails. */
397 fatal_perror (string
, arg1
, arg2
, arg3
)
398 char *string
, *arg1
, *arg2
, *arg3
;
402 fprintf (stderr
, "collect2: ");
403 fprintf (stderr
, string
, arg1
, arg2
, arg3
);
404 fprintf (stderr
, ": %s\n", my_strerror (e
));
405 collect_exit (FATAL_EXIT_CODE
);
411 fatal (string
, arg1
, arg2
, arg3
)
412 char *string
, *arg1
, *arg2
, *arg3
;
414 fprintf (stderr
, "collect2: ");
415 fprintf (stderr
, string
, arg1
, arg2
, arg3
);
416 fprintf (stderr
, "\n");
417 collect_exit (FATAL_EXIT_CODE
);
420 /* Write error message. */
423 error (string
, arg1
, arg2
, arg3
, arg4
)
424 char *string
, *arg1
, *arg2
, *arg3
, *arg4
;
426 fprintf (stderr
, "collect2: ");
427 fprintf (stderr
, string
, arg1
, arg2
, arg3
, arg4
);
428 fprintf (stderr
, "\n");
431 /* In case obstack is linked in, and abort is defined to fancy_abort,
432 provide a default entry. */
437 fatal ("internal error");
445 if (c_file
!= 0 && c_file
[0])
446 maybe_unlink (c_file
);
448 if (o_file
!= 0 && o_file
[0])
449 maybe_unlink (o_file
);
451 if (ldout
!= 0 && ldout
[0])
452 maybe_unlink (ldout
);
454 #ifdef COLLECT_EXPORT_LIST
455 if (export_file
!= 0 && export_file
[0])
456 maybe_unlink (export_file
);
458 if (import_file
!= 0 && import_file
[0])
459 maybe_unlink (import_file
);
462 signal (signo
, SIG_DFL
);
463 kill (getpid (), signo
);
468 xcalloc (size1
, size2
)
471 char *ptr
= (char *) calloc (size1
, size2
);
475 fatal ("out of memory");
483 char *ptr
= (char *) malloc (size
);
487 fatal ("out of memory");
496 register char *value
= (char *) realloc (ptr
, size
);
498 fatal ("virtual memory exhausted");
506 return access (name
, R_OK
) == 0;
509 /* Make a copy of a string INPUT with size SIZE. */
512 savestring (input
, size
)
516 char *output
= (char *) xmalloc (size
+ 1);
517 bcopy (input
, output
, size
);
522 /* Parse a reasonable subset of shell quoting syntax. */
539 obstack_1grow (&temporary_obstack
, c
);
540 else if (! inside
&& c
== ' ')
542 else if (! inside
&& c
== '\\')
547 obstack_1grow (&temporary_obstack
, c
);
550 obstack_1grow (&temporary_obstack
, '\0');
552 return obstack_finish (&temporary_obstack
);
559 FILE *stream
= fopen (name
, "r");
560 int no_demangle
= !! getenv ("COLLECT_NO_DEMANGLE");
567 while (c
= getc (stream
),
568 c
!= EOF
&& (ISALNUM (c
) || c
== '_' || c
== '$' || c
== '.'))
569 obstack_1grow (&temporary_obstack
, c
);
570 if (obstack_object_size (&temporary_obstack
) > 0)
572 char *word
, *p
, *result
;
573 obstack_1grow (&temporary_obstack
, '\0');
574 word
= obstack_finish (&temporary_obstack
);
577 ++word
, putc ('.', stderr
);
579 if (*p
== '_' && prepends_underscore
)
585 result
= cplus_demangle (p
, DMGL_PARAMS
| DMGL_ANSI
);
590 fputs (result
, stderr
);
592 diff
= strlen (word
) - strlen (result
);
594 --diff
, putc (' ', stderr
);
595 while (diff
< 0 && c
== ' ')
596 ++diff
, c
= getc (stream
);
601 fputs (word
, stderr
);
604 obstack_free (&temporary_obstack
, temporary_firstobj
);
613 /* Decide whether the given symbol is:
614 a constructor (1), a destructor (2), or neither (0). */
620 struct names
{ char *name
; int len
; int ret
; int two_underscores
; };
622 register struct names
*p
;
624 register char *orig_s
= s
;
626 static struct names special
[] = {
627 #ifdef NO_DOLLAR_IN_LABEL
628 #ifdef NO_DOT_IN_LABEL
629 { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 },
630 { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 },
631 { "GLOBAL__F_", sizeof ("GLOBAL__F_")-1, 5, 0 },
633 { "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 },
634 { "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 },
635 { "GLOBAL_.F.", sizeof ("GLOBAL_.F.")-1, 5, 0 },
638 { "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 },
639 { "GLOBAL_$D$", sizeof ("GLOBAL_$D$")-1, 2, 0 },
640 { "GLOBAL_$F$", sizeof ("GLOBAL_$F$")-1, 5, 0 },
642 { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 },
643 { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 },
644 #ifdef CFRONT_LOSSAGE /* Do not collect cfront initialization functions.
645 cfront has its own linker procedure to collect them;
646 if collect2 gets them too, they get collected twice
647 when the cfront procedure is run and the compiler used
648 for linking happens to be GCC. */
649 { "sti__", sizeof ("sti__")-1, 1, 1 },
650 { "std__", sizeof ("std__")-1, 2, 1 },
651 #endif /* CFRONT_LOSSAGE */
655 while ((ch
= *s
) == '_')
661 for (p
= &special
[0]; p
->len
> 0; p
++)
664 && (!p
->two_underscores
|| ((s
- orig_s
) >= 2))
665 && strncmp(s
, p
->name
, p
->len
) == 0)
673 /* Routine to add variables to the environment. */
681 #ifndef VMS /* nor about VMS */
683 extern char **environ
;
684 char **old_environ
= environ
;
691 while ((ch
= *p
++) != '\0' && ch
!= '=')
697 /* Search for replacing an existing environment variable, and
698 count the number of total environment variables. */
699 for (envp
= old_environ
; *envp
; envp
++)
702 if (!strncmp (str
, *envp
, name_len
))
709 /* Add a new environment variable */
710 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
712 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
713 sizeof (char *) * (num_envs
+1));
719 #endif /* HAVE_PUTENV */
721 /* By default, colon separates directories in a path. */
722 #ifndef PATH_SEPARATOR
723 #define PATH_SEPARATOR ':'
726 /* We maintain two prefix lists: one from COMPILER_PATH environment variable
727 and one from the PATH variable. */
729 static struct path_prefix cpath
, path
;
732 /* This is the name of the target machine. We use it to form the name
733 of the files to execute. */
735 static char *target_machine
= TARGET_MACHINE
;
738 /* Search for NAME using prefix list PPREFIX. We only look for executable
741 Return 0 if not found, otherwise return its name, allocated with malloc. */
744 find_a_file (pprefix
, name
)
745 struct path_prefix
*pprefix
;
749 struct prefix_list
*pl
;
750 int len
= pprefix
->max_len
+ strlen (name
) + 1;
753 fprintf (stderr
, "Looking for '%s'\n", name
);
755 #ifdef EXECUTABLE_SUFFIX
756 len
+= strlen (EXECUTABLE_SUFFIX
);
759 temp
= xmalloc (len
);
761 /* Determine the filename to execute (special case for absolute paths). */
765 || (DIR_SEPARATOR
== '\\' && name
[1] == ':'
766 && (name
[2] == DIR_SEPARATOR
|| name
[2] == '/'))
770 if (access (name
, X_OK
) == 0)
775 fprintf (stderr
, " - found: absolute path\n");
781 fprintf (stderr
, " - failed to locate using absolute path\n");
784 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
786 strcpy (temp
, pl
->prefix
);
789 if (access (temp
, X_OK
) == 0)
792 #ifdef EXECUTABLE_SUFFIX
793 /* Some systems have a suffix for executable files.
794 So try appending that. */
795 strcat (temp
, EXECUTABLE_SUFFIX
);
797 if (access (temp
, X_OK
) == 0)
802 if (debug
&& pprefix
->plist
== NULL
)
803 fprintf (stderr
, " - failed: no entries in prefix list\n");
809 /* Add an entry for PREFIX to prefix list PPREFIX. */
812 add_prefix (pprefix
, prefix
)
813 struct path_prefix
*pprefix
;
816 struct prefix_list
*pl
, **prev
;
821 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
826 prev
= &pprefix
->plist
;
828 /* Keep track of the longest prefix */
830 len
= strlen (prefix
);
831 if (len
> pprefix
->max_len
)
832 pprefix
->max_len
= len
;
834 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
835 pl
->prefix
= savestring (prefix
, len
);
840 pl
->next
= (struct prefix_list
*) 0;
844 /* Take the value of the environment variable ENV, break it into a path, and
845 add of the entries to PPREFIX. */
848 prefix_from_env (env
, pprefix
)
850 struct path_prefix
*pprefix
;
853 GET_ENVIRONMENT (p
, env
);
856 prefix_from_string (p
, pprefix
);
860 prefix_from_string (p
, pprefix
)
862 struct path_prefix
*pprefix
;
865 char *nstore
= (char *) xmalloc (strlen (p
) + 3);
868 fprintf (stderr
, "Convert string '%s' into prefixes, separator = '%c'\n", p
, PATH_SEPARATOR
);
873 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
875 strncpy (nstore
, startp
, endp
-startp
);
878 strcpy (nstore
, "./");
880 else if (endp
[-1] != '/')
882 nstore
[endp
-startp
] = '/';
883 nstore
[endp
-startp
+1] = 0;
886 nstore
[endp
-startp
] = 0;
889 fprintf (stderr
, " - add prefix: %s\n", nstore
);
891 add_prefix (pprefix
, nstore
);
894 endp
= startp
= endp
+ 1;
908 char *ld_suffix
= "ld";
909 char *full_ld_suffix
= ld_suffix
;
910 char *real_ld_suffix
= "real-ld";
911 char *collect_ld_suffix
= "collect-ld";
912 char *nm_suffix
= "nm";
913 char *full_nm_suffix
= nm_suffix
;
914 char *gnm_suffix
= "gnm";
915 char *full_gnm_suffix
= gnm_suffix
;
917 char *ldd_suffix
= LDD_SUFFIX
;
918 char *full_ldd_suffix
= ldd_suffix
;
920 char *strip_suffix
= "strip";
921 char *full_strip_suffix
= strip_suffix
;
922 char *gstrip_suffix
= "gstrip";
923 char *full_gstrip_suffix
= gstrip_suffix
;
926 #ifdef COLLECT_EXPORT_LIST
934 char **ld1_argv
= (char **) xcalloc (sizeof (char *), argc
+3);
935 char **ld1
= ld1_argv
;
936 char **ld2_argv
= (char **) xcalloc (sizeof (char *), argc
+6);
937 char **ld2
= ld2_argv
;
938 char **object_lst
= (char **) xcalloc (sizeof (char *), argc
);
939 char **object
= object_lst
;
941 int num_c_args
= argc
+7;
947 /* Parse command line early for instances of -debug. This allows
948 the debug flag to be set before functions like find_a_file()
953 for (i
= 1; argv
[i
] != NULL
; i
++)
954 if (! strcmp (argv
[i
], "-debug"))
959 #ifndef DEFAULT_A_OUT_NAME
960 output_file
= "a.out";
962 output_file
= DEFAULT_A_OUT_NAME
;
965 obstack_begin (&temporary_obstack
, 0);
966 obstack_begin (&permanent_obstack
, 0);
967 temporary_firstobj
= (char *) obstack_alloc (&temporary_obstack
, 0);
969 current_demangling_style
= gnu_demangling
;
970 p
= getenv ("COLLECT_GCC_OPTIONS");
973 char *q
= extract_string (&p
);
974 if (*q
== '-' && (q
[1] == 'm' || q
[1] == 'f'))
977 obstack_free (&temporary_obstack
, temporary_firstobj
);
980 c_ptr
= c_argv
= (char **) xcalloc (sizeof (char *), num_c_args
);
983 fatal ("no arguments");
986 if (signal (SIGQUIT
, SIG_IGN
) != SIG_IGN
)
987 signal (SIGQUIT
, handler
);
989 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
990 signal (SIGINT
, handler
);
992 if (signal (SIGALRM
, SIG_IGN
) != SIG_IGN
)
993 signal (SIGALRM
, handler
);
996 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
997 signal (SIGHUP
, handler
);
999 if (signal (SIGSEGV
, SIG_IGN
) != SIG_IGN
)
1000 signal (SIGSEGV
, handler
);
1002 if (signal (SIGBUS
, SIG_IGN
) != SIG_IGN
)
1003 signal (SIGBUS
, handler
);
1006 /* Extract COMPILER_PATH and PATH into our prefix list. */
1007 prefix_from_env ("COMPILER_PATH", &cpath
);
1008 prefix_from_env ("PATH", &path
);
1010 #ifdef CROSS_COMPILE
1011 /* If we look for a program in the compiler directories, we just use
1012 the short name, since these directories are already system-specific.
1013 But it we look for a program in the system directories, we need to
1014 qualify the program name with the target machine. */
1017 = xcalloc (strlen (ld_suffix
) + strlen (target_machine
) + 2, 1);
1018 strcpy (full_ld_suffix
, target_machine
);
1019 strcat (full_ld_suffix
, "-");
1020 strcat (full_ld_suffix
, ld_suffix
);
1024 = xcalloc (strlen (gld_suffix
) + strlen (target_machine
) + 2, 1);
1025 strcpy (full_gld_suffix
, target_machine
);
1026 strcat (full_gld_suffix
, "-");
1027 strcat (full_gld_suffix
, gld_suffix
);
1031 = xcalloc (strlen (nm_suffix
) + strlen (target_machine
) + 2, 1);
1032 strcpy (full_nm_suffix
, target_machine
);
1033 strcat (full_nm_suffix
, "-");
1034 strcat (full_nm_suffix
, nm_suffix
);
1037 = xcalloc (strlen (gnm_suffix
) + strlen (target_machine
) + 2, 1);
1038 strcpy (full_gnm_suffix
, target_machine
);
1039 strcat (full_gnm_suffix
, "-");
1040 strcat (full_gnm_suffix
, gnm_suffix
);
1044 = xcalloc (strlen (ldd_suffix
) + strlen (target_machine
) + 2, 1);
1045 strcpy (full_ldd_suffix
, target_machine
);
1046 strcat (full_ldd_suffix
, "-");
1047 strcat (full_ldd_suffix
, ldd_suffix
);
1051 = xcalloc (strlen (strip_suffix
) + strlen (target_machine
) + 2, 1);
1052 strcpy (full_strip_suffix
, target_machine
);
1053 strcat (full_strip_suffix
, "-");
1054 strcat (full_strip_suffix
, strip_suffix
);
1057 = xcalloc (strlen (gstrip_suffix
) + strlen (target_machine
) + 2, 1);
1058 strcpy (full_gstrip_suffix
, target_machine
);
1059 strcat (full_gstrip_suffix
, "-");
1060 strcat (full_gstrip_suffix
, gstrip_suffix
);
1061 #endif /* CROSS_COMPILE */
1063 /* Try to discover a valid linker/nm/strip to use. */
1065 /* Maybe we know the right file to use (if not cross). */
1066 #ifdef REAL_LD_FILE_NAME
1067 ld_file_name
= find_a_file (&path
, REAL_LD_FILE_NAME
);
1068 if (ld_file_name
== 0)
1070 /* Search the (target-specific) compiler dirs for ld'. */
1071 ld_file_name
= find_a_file (&cpath
, real_ld_suffix
);
1072 /* Likewise for `collect-ld'. */
1073 if (ld_file_name
== 0)
1074 ld_file_name
= find_a_file (&cpath
, collect_ld_suffix
);
1075 /* Search the compiler directories for `ld'. We have protection against
1076 recursive calls in find_a_file. */
1077 if (ld_file_name
== 0)
1078 ld_file_name
= find_a_file (&cpath
, ld_suffix
);
1079 /* Search the ordinary system bin directories
1080 for `ld' (if native linking) or `TARGET-ld' (if cross). */
1081 if (ld_file_name
== 0)
1082 ld_file_name
= find_a_file (&path
, full_ld_suffix
);
1084 #ifdef REAL_NM_FILE_NAME
1085 nm_file_name
= find_a_file (&path
, REAL_NM_FILE_NAME
);
1086 if (nm_file_name
== 0)
1088 nm_file_name
= find_a_file (&cpath
, gnm_suffix
);
1089 if (nm_file_name
== 0)
1090 nm_file_name
= find_a_file (&path
, full_gnm_suffix
);
1091 if (nm_file_name
== 0)
1092 nm_file_name
= find_a_file (&cpath
, nm_suffix
);
1093 if (nm_file_name
== 0)
1094 nm_file_name
= find_a_file (&path
, full_nm_suffix
);
1097 ldd_file_name
= find_a_file (&cpath
, ldd_suffix
);
1098 if (ldd_file_name
== 0)
1099 ldd_file_name
= find_a_file (&path
, full_ldd_suffix
);
1102 #ifdef REAL_STRIP_FILE_NAME
1103 strip_file_name
= find_a_file (&path
, REAL_STRIP_FILE_NAME
);
1104 if (strip_file_name
== 0)
1106 strip_file_name
= find_a_file (&cpath
, gstrip_suffix
);
1107 if (strip_file_name
== 0)
1108 strip_file_name
= find_a_file (&path
, full_gstrip_suffix
);
1109 if (strip_file_name
== 0)
1110 strip_file_name
= find_a_file (&cpath
, strip_suffix
);
1111 if (strip_file_name
== 0)
1112 strip_file_name
= find_a_file (&path
, full_strip_suffix
);
1114 /* Determine the full path name of the C compiler to use. */
1115 c_file_name
= getenv ("COLLECT_GCC");
1116 if (c_file_name
== 0)
1118 #ifdef CROSS_COMPILE
1119 c_file_name
= xcalloc (sizeof ("gcc-") + strlen (target_machine
) + 1, 1);
1120 strcpy (c_file_name
, target_machine
);
1121 strcat (c_file_name
, "-gcc");
1123 c_file_name
= "gcc";
1127 p
= find_a_file (&cpath
, c_file_name
);
1129 /* Here it should be safe to use the system search path since we should have
1130 already qualified the name of the compiler when it is needed. */
1132 p
= find_a_file (&path
, c_file_name
);
1137 *ld1
++ = *ld2
++ = ld_file_name
;
1139 /* Make temp file names. */
1140 temp_filename
= choose_temp_base ();
1141 temp_filename_length
= strlen (temp_filename
);
1142 c_file
= xcalloc (temp_filename_length
+ sizeof (".c"), 1);
1143 o_file
= xcalloc (temp_filename_length
+ sizeof (".o"), 1);
1144 #ifdef COLLECT_EXPORT_LIST
1145 export_file
= xmalloc (temp_filename_length
+ sizeof (".x"));
1146 import_file
= xmalloc (temp_filename_length
+ sizeof (".p"));
1148 ldout
= xmalloc (temp_filename_length
+ sizeof (".ld"));
1149 sprintf (ldout
, "%s.ld", temp_filename
);
1150 sprintf (c_file
, "%s.c", temp_filename
);
1151 sprintf (o_file
, "%s.o", temp_filename
);
1152 #ifdef COLLECT_EXPORT_LIST
1153 sprintf (export_file
, "%s.x", temp_filename
);
1154 sprintf (import_file
, "%s.p", temp_filename
);
1156 *c_ptr
++ = c_file_name
;
1161 #ifdef COLLECT_EXPORT_LIST
1162 /* Generate a list of directories from LIBPATH. */
1163 prefix_from_env ("LIBPATH", &libpath_lib_dirs
);
1164 /* Add to this list also two standard directories where
1165 AIX loader always searches for libraries. */
1166 add_prefix (&libpath_lib_dirs
, "/lib");
1167 add_prefix (&libpath_lib_dirs
, "/usr/lib");
1170 /* Get any options that the upper GCC wants to pass to the sub-GCC.
1172 AIX support needs to know if -shared has been specified before
1173 parsing commandline arguments. */
1175 p
= getenv ("COLLECT_GCC_OPTIONS");
1178 char *q
= extract_string (&p
);
1179 if (*q
== '-' && (q
[1] == 'm' || q
[1] == 'f'))
1180 *c_ptr
++ = obstack_copy0 (&permanent_obstack
, q
, strlen (q
));
1181 if (strncmp (q
, "-shared", sizeof ("-shared") - 1) == 0)
1184 obstack_free (&temporary_obstack
, temporary_firstobj
);
1185 *c_ptr
++ = "-fno-exceptions";
1187 /* !!! When GCC calls collect2,
1188 it does not know whether it is calling collect2 or ld.
1189 So collect2 cannot meaningfully understand any options
1190 except those ld understands.
1191 If you propose to make GCC pass some other option,
1192 just imagine what will happen if ld is really ld!!! */
1194 /* Parse arguments. Remember output file spec, pass the rest to ld. */
1195 /* After the first file, put in the c++ rt0. */
1198 while ((arg
= *++argv
) != (char *) 0)
1200 *ld1
++ = *ld2
++ = arg
;
1206 #ifdef COLLECT_EXPORT_LIST
1207 /* We want to disable automatic exports on AIX when user
1208 explicitly puts an export list in command line */
1210 if (arg
[2] == 'E' || strncmp (&arg
[2], "export", 6) == 0)
1216 if (!strcmp (arg
, "-debug"))
1218 /* Already parsed. */
1227 /* place o_file BEFORE this argument! */
1233 #ifdef COLLECT_EXPORT_LIST
1235 /* Resolving full library name. */
1236 char *s
= resolve_lib_name (arg
+2);
1238 /* If we will use an import list for this library,
1239 we should exclude it from ld args. */
1240 if (use_import_list (s
))
1246 /* Saving a full library name. */
1247 add_to_list (&libs
, s
);
1252 #ifdef COLLECT_EXPORT_LIST
1253 /* Saving directories where to search for libraries. */
1255 add_prefix (&cmdline_lib_dirs
, arg
+2);
1261 output_file
= *ld1
++ = *ld2
++ = *++argv
;
1263 output_file
= &arg
[2];
1272 if (arg
[2] == '\0' && do_collecting
)
1274 /* We must strip after the nm run, otherwise C++ linking
1275 will not work. Thus we strip in the second ld run, or
1276 else with strip if there is no second ld run. */
1288 else if ((p
= rindex (arg
, '.')) != (char *) 0
1289 && (strcmp (p
, ".o") == 0 || strcmp (p
, ".a") == 0
1290 || strcmp (p
, ".so") == 0))
1299 /* place o_file BEFORE this argument! */
1307 #ifdef COLLECT_EXPORT_LIST
1308 /* libraries can be specified directly, i.e. without -l flag. */
1311 /* If we will use an import list for this library,
1312 we should exclude it from ld args. */
1313 if (use_import_list (arg
))
1319 /* Saving a full library name. */
1320 add_to_list (&libs
, arg
);
1326 #ifdef COLLECT_EXPORT_LIST
1327 /* This is added only for debugging purposes. */
1330 fprintf (stderr
, "List of libraries:\n");
1331 dump_list (stderr
, "\t", libs
.first
);
1334 /* The AIX linker will discard static constructors in object files if
1335 nothing else in the file is referenced, so look at them first. */
1337 char **export_object_lst
= object_lst
;
1338 while (export_object_lst
< object
)
1339 scan_prog_file (*export_object_lst
++, PASS_OBJ
);
1342 struct id
*list
= libs
.first
;
1343 for (; list
; list
= list
->next
)
1344 scan_prog_file (list
->name
, PASS_FIRST
);
1347 char *buf1
= alloca (strlen (export_file
) + 5);
1348 char *buf2
= alloca (strlen (import_file
) + 5);
1349 sprintf (buf1
, "-bE:%s", export_file
);
1350 sprintf (buf2
, "-bI:%s", import_file
);
1355 exportf
= fopen (export_file
, "w");
1356 if (exportf
== (FILE *) 0)
1357 fatal_perror ("%s", export_file
);
1358 write_export_file (exportf
);
1359 if (fclose (exportf
))
1360 fatal_perror ("closing %s", export_file
);
1361 importf
= fopen (import_file
, "w");
1362 if (importf
== (FILE *) 0)
1363 fatal_perror ("%s", import_file
);
1364 write_import_file (importf
);
1365 if (fclose (importf
))
1366 fatal_perror ("closing %s", import_file
);
1371 *object
= *c_ptr
= *ld1
= (char *) 0;
1375 fprintf (stderr
, "collect2 version %s", version_string
);
1376 #ifdef TARGET_VERSION
1379 fprintf (stderr
, "\n");
1385 fprintf (stderr
, "ld_file_name = %s\n",
1386 (ld_file_name
? ld_file_name
: "not found"));
1387 fprintf (stderr
, "c_file_name = %s\n",
1388 (c_file_name
? c_file_name
: "not found"));
1389 fprintf (stderr
, "nm_file_name = %s\n",
1390 (nm_file_name
? nm_file_name
: "not found"));
1392 fprintf (stderr
, "ldd_file_name = %s\n",
1393 (ldd_file_name
? ldd_file_name
: "not found"));
1395 fprintf (stderr
, "strip_file_name = %s\n",
1396 (strip_file_name
? strip_file_name
: "not found"));
1397 fprintf (stderr
, "c_file = %s\n",
1398 (c_file
? c_file
: "not found"));
1399 fprintf (stderr
, "o_file = %s\n",
1400 (o_file
? o_file
: "not found"));
1402 ptr
= getenv ("COLLECT_GCC_OPTIONS");
1404 fprintf (stderr
, "COLLECT_GCC_OPTIONS = %s\n", ptr
);
1406 ptr
= getenv ("COLLECT_GCC");
1408 fprintf (stderr
, "COLLECT_GCC = %s\n", ptr
);
1410 ptr
= getenv ("COMPILER_PATH");
1412 fprintf (stderr
, "COMPILER_PATH = %s\n", ptr
);
1414 ptr
= getenv ("LIBRARY_PATH");
1416 fprintf (stderr
, "LIBRARY_PATH = %s\n", ptr
);
1418 fprintf (stderr
, "\n");
1421 /* Load the program, searching all libraries and attempting to provide
1422 undefined symbols from repository information. */
1424 /* On AIX we do this later. */
1425 #ifndef COLLECT_EXPORT_LIST
1426 do_tlink (ld1_argv
, object_lst
);
1429 /* If -r or they will be run via some other method, do not build the
1430 constructor or destructor list, just return now. */
1432 #ifndef COLLECT_EXPORT_LIST
1437 #ifdef COLLECT_EXPORT_LIST
1438 /* But make sure we delete the export file we may have created. */
1439 if (export_file
!= 0 && export_file
[0])
1440 maybe_unlink (export_file
);
1441 if (import_file
!= 0 && import_file
[0])
1442 maybe_unlink (import_file
);
1447 /* Examine the namelist with nm and search it for static constructors
1448 and destructors to call.
1449 Write the constructor and destructor tables to a .s file and reload. */
1451 /* On AIX we already done scanning for global constructors/destructors. */
1452 #ifndef COLLECT_EXPORT_LIST
1453 scan_prog_file (output_file
, PASS_FIRST
);
1456 #ifdef SCAN_LIBRARIES
1457 scan_libraries (output_file
);
1462 fprintf (stderr
, "%d constructor(s) found\n", constructors
.number
);
1463 fprintf (stderr
, "%d destructor(s) found\n", destructors
.number
);
1466 if (constructors
.number
== 0 && destructors
.number
== 0
1467 && frame_tables
.number
== 0
1468 #if defined (SCAN_LIBRARIES) || defined (COLLECT_EXPORT_LIST)
1469 /* If we will be running these functions ourselves, we want to emit
1470 stubs into the shared library so that we do not have to relink
1471 dependent programs when we add static objects. */
1476 #ifdef COLLECT_EXPORT_LIST
1477 /* Doing tlink without additional code generation */
1478 do_tlink (ld1_argv
, object_lst
);
1480 /* Strip now if it was requested on the command line. */
1483 char **strip_argv
= (char **) xcalloc (sizeof (char *), 3);
1484 strip_argv
[0] = strip_file_name
;
1485 strip_argv
[1] = output_file
;
1486 strip_argv
[2] = (char *) 0;
1487 fork_execute ("strip", strip_argv
);
1490 #ifdef COLLECT_EXPORT_LIST
1491 maybe_unlink (export_file
);
1492 maybe_unlink (import_file
);
1497 maybe_unlink(output_file
);
1498 outf
= fopen (c_file
, "w");
1499 if (outf
== (FILE *) 0)
1500 fatal_perror ("%s", c_file
);
1502 write_c_file (outf
, c_file
);
1505 fatal_perror ("closing %s", c_file
);
1507 /* Tell the linker that we have initializer and finalizer functions. */
1508 #ifdef LD_INIT_SWITCH
1509 *ld2
++ = LD_INIT_SWITCH
;
1511 *ld2
++ = LD_FINI_SWITCH
;
1516 #ifdef COLLECT_EXPORT_LIST
1519 add_to_list (&exports
, initname
);
1520 add_to_list (&exports
, fininame
);
1521 add_to_list (&exports
, "_GLOBAL__DI");
1522 add_to_list (&exports
, "_GLOBAL__DD");
1523 exportf
= fopen (export_file
, "w");
1524 if (exportf
== (FILE *) 0)
1525 fatal_perror ("%s", export_file
);
1526 write_export_file (exportf
);
1527 if (fclose (exportf
))
1528 fatal_perror ("closing %s", export_file
);
1534 fprintf (stderr
, "\n========== output_file = %s, c_file = %s\n",
1535 output_file
, c_file
);
1536 write_c_file (stderr
, "stderr");
1537 fprintf (stderr
, "========== end of c_file\n\n");
1538 #ifdef COLLECT_EXPORT_LIST
1539 fprintf (stderr
, "\n========== export_file = %s\n", export_file
);
1540 write_export_file (stderr
);
1541 fprintf (stderr
, "========== end of export_file\n\n");
1545 /* Assemble the constructor and destructor tables.
1546 Link the tables in with the rest of the program. */
1548 fork_execute ("gcc", c_argv
);
1549 #ifdef COLLECT_EXPORT_LIST
1550 /* On AIX we must call tlink because of possible templates resolution */
1551 do_tlink (ld2_argv
, object_lst
);
1553 /* Otherwise, simply call ld because tlink is already done */
1554 fork_execute ("ld", ld2_argv
);
1556 /* Let scan_prog_file do any final mods (OSF/rose needs this for
1557 constructors/destructors in shared libraries. */
1558 scan_prog_file (output_file
, PASS_SECOND
);
1561 maybe_unlink (c_file
);
1562 maybe_unlink (o_file
);
1564 #ifdef COLLECT_EXPORT_LIST
1565 maybe_unlink (export_file
);
1566 maybe_unlink (import_file
);
1573 /* Wait for a process to finish, and exit if a non-zero status is found. */
1584 if (WIFSIGNALED (status
))
1586 int sig
= WTERMSIG (status
);
1587 #ifdef NO_SYS_SIGLIST
1588 error ("%s terminated with signal %d %s",
1591 (status
& 0200) ? ", core dumped" : "");
1593 error ("%s terminated with signal %d [%s]%s",
1597 (status
& 0200) ? ", core dumped" : "");
1600 collect_exit (FATAL_EXIT_CODE
);
1603 if (WIFEXITED (status
))
1604 return WEXITSTATUS (status
);
1613 int ret
= collect_wait (prog
);
1616 error ("%s returned %d exit status", prog
, ret
);
1622 /* Fork and execute a program, and wait for the reply. */
1625 collect_execute (prog
, argv
, redir
)
1638 fprintf (stderr
, "%s", argv
[0]);
1640 fprintf (stderr
, "[cannot find %s]", prog
);
1642 for (p_argv
= &argv
[1]; (str
= *p_argv
) != (char *) 0; p_argv
++)
1643 fprintf (stderr
, " %s", str
);
1645 fprintf (stderr
, "\n");
1651 /* If we cannot find a program we need, complain error. Do this here
1652 since we might not end up needing something that we could not find. */
1655 fatal ("cannot find `%s'", prog
);
1657 #ifndef __CYGWIN32__
1662 fatal_perror ("fork");
1664 fatal_perror ("vfork");
1668 if (pid
== 0) /* child context */
1673 if (freopen (redir
, "a", stdout
) == NULL
)
1674 fatal_perror ("redirecting stdout: %s", redir
);
1675 if (freopen (redir
, "a", stderr
) == NULL
)
1676 fatal_perror ("redirecting stderr: %s", redir
);
1679 execvp (argv
[0], argv
);
1680 fatal_perror ("executing %s", prog
);
1683 pid
= _spawnvp (_P_NOWAIT
, argv
[0], argv
);
1685 fatal ("spawnvp failed");
1690 fork_execute (prog
, argv
)
1694 collect_execute (prog
, argv
, NULL
);
1698 /* Unlink a file unless we are debugging. */
1707 fprintf (stderr
, "[Leaving %s]\n", file
);
1711 /* Add a name to a linked list. */
1714 add_to_list (head_ptr
, name
)
1715 struct head
*head_ptr
;
1719 = (struct id
*) xcalloc (sizeof (struct id
) + strlen (name
), 1);
1721 static long sequence_number
= 0;
1722 strcpy (newid
->name
, name
);
1724 if (head_ptr
->first
)
1725 head_ptr
->last
->next
= newid
;
1727 head_ptr
->first
= newid
;
1729 /* Check for duplicate symbols. */
1730 for (p
= head_ptr
->first
;
1731 strcmp (name
, p
->name
) != 0;
1736 head_ptr
->last
->next
= 0;
1741 newid
->sequence
= ++sequence_number
;
1742 head_ptr
->last
= newid
;
1746 /* Write: `prefix', the names on list LIST, `suffix'. */
1749 write_list (stream
, prefix
, list
)
1756 fprintf (stream
, "%sx%d,\n", prefix
, list
->sequence
);
1761 #ifdef COLLECT_EXPORT_LIST
1762 /* This function is really used only on AIX, but may be useful. */
1764 is_in_list (prefix
, list
)
1770 if (!strcmp (prefix
, list
->name
)) return 1;
1777 /* Added for debugging purpose. */
1778 #ifdef COLLECT_EXPORT_LIST
1780 dump_list (stream
, prefix
, list
)
1787 fprintf (stream
, "%s%s,\n", prefix
, list
->name
);
1795 dump_prefix_list (stream
, prefix
, list
)
1798 struct prefix_list
*list
;
1802 fprintf (stream
, "%s%s,\n", prefix
, list
->prefix
);
1809 write_list_with_asm (stream
, prefix
, list
)
1816 fprintf (stream
, "%sx%d __asm__ (\"%s\");\n",
1817 prefix
, list
->sequence
, list
->name
);
1822 /* Write out the constructor and destructor tables statically (for a shared
1823 object), along with the functions to execute them. */
1826 write_c_file_stat (stream
, name
)
1830 char *prefix
, *p
, *q
;
1831 int frames
= (frame_tables
.number
> 0);
1833 /* Figure out name of output_file, stripping off .so version. */
1834 p
= rindex (output_file
, '/');
1836 p
= (char *) output_file
;
1850 if (strncmp (q
, ".so", 3) == 0)
1859 /* q points to null at end of the string (or . of the .so version) */
1860 prefix
= xmalloc (q
- p
+ 1);
1861 strncpy (prefix
, p
, q
- p
);
1863 for (q
= prefix
; *q
; q
++)
1867 fprintf (stderr
, "\nwrite_c_file - output name is %s, prefix is %s\n",
1868 output_file
, prefix
);
1870 #define INIT_NAME_FORMAT "_GLOBAL__FI_%s"
1871 initname
= xmalloc (strlen (prefix
) + sizeof (INIT_NAME_FORMAT
) - 2);
1872 sprintf (initname
, INIT_NAME_FORMAT
, prefix
);
1874 #define FINI_NAME_FORMAT "_GLOBAL__FD_%s"
1875 fininame
= xmalloc (strlen (prefix
) + sizeof (FINI_NAME_FORMAT
) - 2);
1876 sprintf (fininame
, FINI_NAME_FORMAT
, prefix
);
1880 /* Write the tables as C code */
1882 fprintf (stream
, "static int count;\n");
1883 fprintf (stream
, "typedef void entry_pt();\n");
1884 write_list_with_asm (stream
, "extern entry_pt ", constructors
.first
);
1888 write_list_with_asm (stream
, "extern void *", frame_tables
.first
);
1890 fprintf (stream
, "\tstatic void *frame_table[] = {\n");
1891 write_list (stream
, "\t\t&", frame_tables
.first
);
1892 fprintf (stream
, "\t0\n};\n");
1894 /* This must match what's in frame.h. */
1895 fprintf (stream
, "struct object {\n");
1896 fprintf (stream
, " void *pc_begin;\n");
1897 fprintf (stream
, " void *pc_end;\n");
1898 fprintf (stream
, " void *fde_begin;\n");
1899 fprintf (stream
, " void *fde_array;\n");
1900 fprintf (stream
, " __SIZE_TYPE__ count;\n");
1901 fprintf (stream
, " struct object *next;\n");
1902 fprintf (stream
, "};\n");
1904 fprintf (stream
, "extern void __register_frame_info_table (void *, struct object *);\n");
1905 fprintf (stream
, "extern void *__deregister_frame_info (void *);\n");
1907 fprintf (stream
, "static void reg_frame () {\n");
1908 fprintf (stream
, "\tstatic struct object ob;\n");
1909 fprintf (stream
, "\t__register_frame_info_table (frame_table, &ob);\n");
1910 fprintf (stream
, "\t}\n");
1912 fprintf (stream
, "static void dereg_frame () {\n");
1913 fprintf (stream
, "\t__deregister_frame_info (frame_table);\n");
1914 fprintf (stream
, "\t}\n");
1917 fprintf (stream
, "void %s() {\n", initname
);
1918 if (constructors
.number
> 0 || frames
)
1920 fprintf (stream
, "\tstatic entry_pt *ctors[] = {\n");
1921 write_list (stream
, "\t\t", constructors
.first
);
1923 fprintf (stream
, "\treg_frame,\n");
1924 fprintf (stream
, "\t};\n");
1925 fprintf (stream
, "\tentry_pt **p;\n");
1926 fprintf (stream
, "\tif (count++ != 0) return;\n");
1927 fprintf (stream
, "\tp = ctors + %d;\n", constructors
.number
+ frames
);
1928 fprintf (stream
, "\twhile (p > ctors) (*--p)();\n");
1931 fprintf (stream
, "\t++count;\n");
1932 fprintf (stream
, "}\n");
1933 write_list_with_asm (stream
, "extern entry_pt ", destructors
.first
);
1934 fprintf (stream
, "void %s() {\n", fininame
);
1935 if (destructors
.number
> 0 || frames
)
1937 fprintf (stream
, "\tstatic entry_pt *dtors[] = {\n");
1938 write_list (stream
, "\t\t", destructors
.first
);
1940 fprintf (stream
, "\tdereg_frame,\n");
1941 fprintf (stream
, "\t};\n");
1942 fprintf (stream
, "\tentry_pt **p;\n");
1943 fprintf (stream
, "\tif (--count != 0) return;\n");
1944 fprintf (stream
, "\tp = dtors;\n");
1945 fprintf (stream
, "\twhile (p < dtors + %d) (*p++)();\n",
1946 destructors
.number
+ frames
);
1948 fprintf (stream
, "}\n");
1952 fprintf (stream
, "void _GLOBAL__DI() {\n\t%s();\n}\n", initname
);
1953 fprintf (stream
, "void _GLOBAL__DD() {\n\t%s();\n}\n", fininame
);
1957 /* Write the constructor/destructor tables. */
1959 #ifndef LD_INIT_SWITCH
1961 write_c_file_glob (stream
, name
)
1965 /* Write the tables as C code */
1967 int frames
= (frame_tables
.number
> 0);
1969 fprintf (stream
, "typedef void entry_pt();\n\n");
1971 write_list_with_asm (stream
, "extern entry_pt ", constructors
.first
);
1975 write_list_with_asm (stream
, "extern void *", frame_tables
.first
);
1977 fprintf (stream
, "\tstatic void *frame_table[] = {\n");
1978 write_list (stream
, "\t\t&", frame_tables
.first
);
1979 fprintf (stream
, "\t0\n};\n");
1981 /* This must match what's in frame.h. */
1982 fprintf (stream
, "struct object {\n");
1983 fprintf (stream
, " void *pc_begin;\n");
1984 fprintf (stream
, " void *pc_end;\n");
1985 fprintf (stream
, " void *fde_begin;\n");
1986 fprintf (stream
, " void *fde_array;\n");
1987 fprintf (stream
, " __SIZE_TYPE__ count;\n");
1988 fprintf (stream
, " struct object *next;\n");
1989 fprintf (stream
, "};\n");
1991 fprintf (stream
, "extern void __register_frame_info_table (void *, struct object *);\n");
1992 fprintf (stream
, "extern void *__deregister_frame_info (void *);\n");
1994 fprintf (stream
, "static void reg_frame () {\n");
1995 fprintf (stream
, "\tstatic struct object ob;\n");
1996 fprintf (stream
, "\t__register_frame_info_table (frame_table, &ob);\n");
1997 fprintf (stream
, "\t}\n");
1999 fprintf (stream
, "static void dereg_frame () {\n");
2000 fprintf (stream
, "\t__deregister_frame_info (frame_table);\n");
2001 fprintf (stream
, "\t}\n");
2004 fprintf (stream
, "\nentry_pt * __CTOR_LIST__[] = {\n");
2005 fprintf (stream
, "\t(entry_pt *) %d,\n", constructors
.number
+ frames
);
2006 write_list (stream
, "\t", constructors
.first
);
2008 fprintf (stream
, "\treg_frame,\n");
2009 fprintf (stream
, "\t0\n};\n\n");
2011 write_list_with_asm (stream
, "extern entry_pt ", destructors
.first
);
2013 fprintf (stream
, "\nentry_pt * __DTOR_LIST__[] = {\n");
2014 fprintf (stream
, "\t(entry_pt *) %d,\n", destructors
.number
+ frames
);
2015 write_list (stream
, "\t", destructors
.first
);
2017 fprintf (stream
, "\tdereg_frame,\n");
2018 fprintf (stream
, "\t0\n};\n\n");
2020 fprintf (stream
, "extern entry_pt %s;\n", NAME__MAIN
);
2021 fprintf (stream
, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN
);
2023 #endif /* ! LD_INIT_SWITCH */
2026 write_c_file (stream
, name
)
2030 fprintf (stream
, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
2031 #ifndef LD_INIT_SWITCH
2033 write_c_file_glob (stream
, name
);
2036 write_c_file_stat (stream
, name
);
2037 fprintf (stream
, "#ifdef __cplusplus\n}\n#endif\n");
2040 #ifdef COLLECT_EXPORT_LIST
2042 write_export_file (stream
)
2045 struct id
*list
= exports
.first
;
2046 for (; list
; list
= list
->next
)
2047 fprintf (stream
, "%s\n", list
->name
);
2051 write_import_file (stream
)
2054 struct id
*list
= imports
.first
;
2055 fprintf (stream
, "%s\n", "#! .");
2056 for (; list
; list
= list
->next
)
2057 fprintf (stream
, "%s\n", list
->name
);
2061 #ifdef OBJECT_FORMAT_NONE
2063 /* Generic version to scan the name list of the loaded program for
2064 the symbols g++ uses for static constructors and destructors.
2066 The constructor table begins at __CTOR_LIST__ and contains a count
2067 of the number of pointers (or -1 if the constructors are built in a
2068 separate section by the linker), followed by the pointers to the
2069 constructor functions, terminated with a null pointer. The
2070 destructor table has the same format, and begins at __DTOR_LIST__. */
2073 scan_prog_file (prog_name
, which_pass
)
2075 enum pass which_pass
;
2077 void (*int_handler
) ();
2078 void (*quit_handler
) ();
2086 if (which_pass
== PASS_SECOND
)
2089 /* If we do not have an `nm', complain. */
2090 if (nm_file_name
== 0)
2091 fatal ("cannot find `nm'");
2093 nm_argv
[argc
++] = nm_file_name
;
2094 if (NM_FLAGS
[0] != '\0')
2095 nm_argv
[argc
++] = NM_FLAGS
;
2097 nm_argv
[argc
++] = prog_name
;
2098 nm_argv
[argc
++] = (char *) 0;
2100 if (pipe (pipe_fd
) < 0)
2101 fatal_perror ("pipe");
2103 inf
= fdopen (pipe_fd
[0], "r");
2104 if (inf
== (FILE *) 0)
2105 fatal_perror ("fdopen");
2107 /* Trace if needed. */
2113 for (p_argv
= &nm_argv
[0]; (str
= *p_argv
) != (char *) 0; p_argv
++)
2114 fprintf (stderr
, " %s", str
);
2116 fprintf (stderr
, "\n");
2122 /* Spawn child nm on pipe */
2127 fatal_perror ("fork");
2129 fatal_perror ("vfork");
2133 if (pid
== 0) /* child context */
2136 if (dup2 (pipe_fd
[1], 1) < 0)
2137 fatal_perror ("dup2 (%d, 1)", pipe_fd
[1]);
2139 if (close (pipe_fd
[0]) < 0)
2140 fatal_perror ("close (%d)", pipe_fd
[0]);
2142 if (close (pipe_fd
[1]) < 0)
2143 fatal_perror ("close (%d)", pipe_fd
[1]);
2145 execv (nm_file_name
, nm_argv
);
2146 fatal_perror ("executing %s", nm_file_name
);
2149 /* Parent context from here on. */
2150 int_handler
= (void (*) ())signal (SIGINT
, SIG_IGN
);
2152 quit_handler
= (void (*) ())signal (SIGQUIT
, SIG_IGN
);
2155 if (close (pipe_fd
[1]) < 0)
2156 fatal_perror ("close (%d)", pipe_fd
[1]);
2159 fprintf (stderr
, "\nnm output with constructors/destructors.\n");
2161 /* Read each line of nm output. */
2162 while (fgets (buf
, sizeof buf
, inf
) != (char *) 0)
2167 /* If it contains a constructor or destructor name, add the name
2168 to the appropriate list. */
2170 for (p
= buf
; (ch
= *p
) != '\0' && ch
!= '\n' && ch
!= '_'; p
++)
2171 if (ch
== ' ' && p
[1] == 'U' && p
[2] == ' ')
2178 /* Find the end of the symbol name.
2179 Do not include `|', because Encore nm can tack that on the end. */
2180 for (end
= p
; (ch2
= *end
) != '\0' && !ISSPACE (ch2
) && ch2
!= '|';
2186 switch (is_ctor_dtor (name
))
2189 if (which_pass
!= PASS_LIB
)
2190 add_to_list (&constructors
, name
);
2194 if (which_pass
!= PASS_LIB
)
2195 add_to_list (&destructors
, name
);
2199 if (which_pass
!= PASS_LIB
)
2200 fatal ("init function found in object %s", prog_name
);
2201 #ifndef LD_INIT_SWITCH
2202 add_to_list (&constructors
, name
);
2207 if (which_pass
!= PASS_LIB
)
2208 fatal ("fini function found in object %s", prog_name
);
2209 #ifndef LD_FINI_SWITCH
2210 add_to_list (&destructors
, name
);
2215 if (which_pass
!= PASS_LIB
)
2216 add_to_list (&frame_tables
, name
);
2218 default: /* not a constructor or destructor */
2223 fprintf (stderr
, "\t%s\n", buf
);
2227 fprintf (stderr
, "\n");
2229 if (fclose (inf
) != 0)
2230 fatal_perror ("fclose of pipe");
2232 do_wait (nm_file_name
);
2234 signal (SIGINT
, int_handler
);
2236 signal (SIGQUIT
, quit_handler
);
2240 #if SUNOS4_SHARED_LIBRARIES
2242 /* Routines to scan the SunOS 4 _DYNAMIC structure to find shared libraries
2243 that the output file depends upon and their initialization/finalization
2244 routines, if any. */
2249 #include <sys/mman.h>
2250 #include <sys/param.h>
2252 #include <sys/dir.h>
2254 /* pointers to the object file */
2255 unsigned object
; /* address of memory mapped file */
2256 unsigned objsize
; /* size of memory mapped to file */
2257 char * code
; /* pointer to code segment */
2258 char * data
; /* pointer to data segment */
2259 struct nlist
*symtab
; /* pointer to symbol table */
2260 struct link_dynamic
*ld
;
2261 struct link_dynamic_2
*ld_2
;
2262 struct head libraries
;
2264 /* Map the file indicated by NAME into memory and store its address. */
2272 if ((fp
= open (name
, O_RDONLY
)) == -1)
2273 fatal ("unable to open file '%s'", name
);
2274 if (fstat (fp
, &s
) == -1)
2275 fatal ("unable to stat file '%s'", name
);
2277 objsize
= s
.st_size
;
2278 object
= (unsigned) mmap (0, objsize
, PROT_READ
|PROT_WRITE
, MAP_PRIVATE
,
2281 fatal ("unable to mmap file '%s'", name
);
2286 /* Helpers for locatelib. */
2288 static char *libname
;
2294 return (strncmp (libname
, d
->d_name
, strlen (libname
)) == 0);
2297 /* If one file has an additional numeric extension past LIBNAME, then put
2298 that one first in the sort. If both files have additional numeric
2299 extensions, then put the one with the higher number first in the sort.
2301 We must verify that the extension is numeric, because Sun saves the
2302 original versions of patched libraries with a .FCS extension. Files with
2303 invalid extensions must go last in the sort, so that they will not be used. */
2307 struct direct
**d1
, **d2
;
2309 int i1
, i2
= strlen (libname
);
2310 char *e1
= (*d1
)->d_name
+ i2
;
2311 char *e2
= (*d2
)->d_name
+ i2
;
2313 while (*e1
&& *e2
&& *e1
== '.' && *e2
== '.'
2314 && e1
[1] && ISDIGIT (e1
[1]) && e2
[1] && ISDIGIT (e2
[1]))
2318 i1
= strtol (e1
, &e1
, 10);
2319 i2
= strtol (e2
, &e2
, 10);
2326 /* It has a valid numeric extension, prefer this one. */
2327 if (*e1
== '.' && e1
[1] && ISDIGIT (e1
[1]))
2329 /* It has a invalid numeric extension, must prefer the other one. */
2335 /* It has a valid numeric extension, prefer this one. */
2336 if (*e2
== '.' && e2
[1] && ISDIGIT (e2
[1]))
2338 /* It has a invalid numeric extension, must prefer the other one. */
2346 /* Given the name NAME of a dynamic dependency, find its pathname and add
2347 it to the list of libraries. */
2355 char buf
[MAXPATHLEN
];
2363 /* counting elements in array, need 1 extra for null */
2365 ld_rules
= (char *) (ld_2
->ld_rules
+ code
);
2369 for (; *ld_rules
!= 0; ld_rules
++)
2370 if (*ld_rules
== ':')
2372 ld_rules
= (char *) (ld_2
->ld_rules
+ code
);
2373 ldr
= (char *) malloc (strlen (ld_rules
) + 1);
2374 strcpy (ldr
, ld_rules
);
2376 p
= getenv ("LD_LIBRARY_PATH");
2381 for (q
= p
; *q
!= 0; q
++)
2384 q
= (char *) malloc (strlen (p
) + 1);
2387 l
= (char **) malloc ((cnt
+ 3) * sizeof (char *));
2392 for (; *ldr
!= 0; ldr
++)
2402 for (; *q
!= 0; q
++)
2409 /* built in directories are /lib, /usr/lib, and /usr/local/lib */
2412 *pp
++ = "/usr/local/lib";
2416 for (pp
= l
; *pp
!= 0 ; pp
++)
2418 struct direct
**namelist
;
2420 if ((entries
= scandir (*pp
, &namelist
, libselect
, libcompare
)) > 0)
2422 sprintf (buf
, "%s/%s", *pp
, namelist
[entries
- 1]->d_name
);
2423 add_to_list (&libraries
, buf
);
2425 fprintf (stderr
, "%s\n", buf
);
2432 fprintf (stderr
, "not found\n");
2434 fatal ("dynamic dependency %s not found", name
);
2438 /* Scan the _DYNAMIC structure of the output file to find shared libraries
2439 that it depends upon and any constructors or destructors they contain. */
2442 scan_libraries (prog_name
)
2445 struct exec
*header
;
2447 struct link_object
*lo
;
2448 char buff
[MAXPATHLEN
];
2451 mapfile (prog_name
);
2452 header
= (struct exec
*)object
;
2453 if (N_BADMAG (*header
))
2454 fatal ("bad magic number in file '%s'", prog_name
);
2455 if (header
->a_dynamic
== 0)
2458 code
= (char *) (N_TXTOFF (*header
) + (long) header
);
2459 data
= (char *) (N_DATOFF (*header
) + (long) header
);
2460 symtab
= (struct nlist
*) (N_SYMOFF (*header
) + (long) header
);
2462 if (header
->a_magic
== ZMAGIC
&& header
->a_entry
== 0x20)
2465 ld
= (struct link_dynamic
*) (symtab
->n_value
+ code
);
2471 ld
= (struct link_dynamic
*) data
;
2476 fprintf (stderr
, "dynamic dependencies.\n");
2478 ld_2
= (struct link_dynamic_2
*) ((long) ld
->ld_un
.ld_2
+ (long)base
);
2479 for (lo
= (struct link_object
*) ld_2
->ld_need
; lo
;
2480 lo
= (struct link_object
*) lo
->lo_next
)
2483 lo
= (struct link_object
*) ((long) lo
+ code
);
2484 name
= (char *) (code
+ lo
->lo_name
);
2488 fprintf (stderr
, "\t-l%s.%d => ", name
, lo
->lo_major
);
2489 sprintf (buff
, "lib%s.so.%d.%d", name
, lo
->lo_major
, lo
->lo_minor
);
2495 fprintf (stderr
, "\t%s\n", name
);
2496 add_to_list (&libraries
, name
);
2501 fprintf (stderr
, "\n");
2503 /* now iterate through the library list adding their symbols to
2505 for (list
= libraries
.first
; list
; list
= list
->next
)
2506 scan_prog_file (list
->name
, PASS_LIB
);
2509 #else /* SUNOS4_SHARED_LIBRARIES */
2512 /* Use the List Dynamic Dependencies program to find shared libraries that
2513 the output file depends upon and their initialization/finalization
2514 routines, if any. */
2517 scan_libraries (prog_name
)
2520 static struct head libraries
; /* list of shared libraries found */
2522 void (*int_handler
) ();
2523 void (*quit_handler
) ();
2531 /* If we do not have an `ldd', complain. */
2532 if (ldd_file_name
== 0)
2534 error ("cannot find `ldd'");
2538 ldd_argv
[argc
++] = ldd_file_name
;
2539 ldd_argv
[argc
++] = prog_name
;
2540 ldd_argv
[argc
++] = (char *) 0;
2542 if (pipe (pipe_fd
) < 0)
2543 fatal_perror ("pipe");
2545 inf
= fdopen (pipe_fd
[0], "r");
2546 if (inf
== (FILE *) 0)
2547 fatal_perror ("fdopen");
2549 /* Trace if needed. */
2555 for (p_argv
= &ldd_argv
[0]; (str
= *p_argv
) != (char *) 0; p_argv
++)
2556 fprintf (stderr
, " %s", str
);
2558 fprintf (stderr
, "\n");
2564 /* Spawn child ldd on pipe */
2569 fatal_perror ("fork");
2571 fatal_perror ("vfork");
2575 if (pid
== 0) /* child context */
2578 if (dup2 (pipe_fd
[1], 1) < 0)
2579 fatal_perror ("dup2 (%d, 1)", pipe_fd
[1]);
2581 if (close (pipe_fd
[0]) < 0)
2582 fatal_perror ("close (%d)", pipe_fd
[0]);
2584 if (close (pipe_fd
[1]) < 0)
2585 fatal_perror ("close (%d)", pipe_fd
[1]);
2587 execv (ldd_file_name
, ldd_argv
);
2588 fatal_perror ("executing %s", ldd_file_name
);
2591 /* Parent context from here on. */
2592 int_handler
= (void (*) ()) signal (SIGINT
, SIG_IGN
);
2594 quit_handler
= (void (*) ()) signal (SIGQUIT
, SIG_IGN
);
2597 if (close (pipe_fd
[1]) < 0)
2598 fatal_perror ("close (%d)", pipe_fd
[1]);
2601 fprintf (stderr
, "\nldd output with constructors/destructors.\n");
2603 /* Read each line of ldd output. */
2604 while (fgets (buf
, sizeof buf
, inf
) != (char *) 0)
2607 char *name
, *end
, *p
= buf
;
2609 /* Extract names of libraries and add to list. */
2610 PARSE_LDD_OUTPUT (p
);
2615 if (strncmp (name
, "not found", sizeof ("not found") - 1) == 0)
2616 fatal ("dynamic dependency %s not found", buf
);
2618 /* Find the end of the symbol name. */
2620 (ch2
= *end
) != '\0' && ch2
!= '\n' && !ISSPACE (ch2
) && ch2
!= '|';
2625 if (access (name
, R_OK
) == 0)
2626 add_to_list (&libraries
, name
);
2628 fatal ("unable to open dynamic dependency '%s'", buf
);
2631 fprintf (stderr
, "\t%s\n", buf
);
2634 fprintf (stderr
, "\n");
2636 if (fclose (inf
) != 0)
2637 fatal_perror ("fclose of pipe");
2639 do_wait (ldd_file_name
);
2641 signal (SIGINT
, int_handler
);
2643 signal (SIGQUIT
, quit_handler
);
2646 /* now iterate through the library list adding their symbols to
2648 for (list
= libraries
.first
; list
; list
= list
->next
)
2649 scan_prog_file (list
->name
, PASS_LIB
);
2652 #endif /* LDD_SUFFIX */
2653 #endif /* SUNOS4_SHARED_LIBRARIES */
2655 #endif /* OBJECT_FORMAT_NONE */
2659 * COFF specific stuff.
2662 #ifdef OBJECT_FORMAT_COFF
2664 #if defined(EXTENDED_COFF)
2665 # define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax)
2666 # define GCC_SYMENT SYMR
2667 # define GCC_OK_SYMBOL(X) ((X).st == stProc && (X).sc == scText)
2668 # define GCC_SYMINC(X) (1)
2669 # define GCC_SYMZERO(X) (SYMHEADER(X).isymMax)
2670 # define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0)
2672 # define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms)
2673 # define GCC_SYMENT SYMENT
2674 # define GCC_OK_SYMBOL(X) \
2675 (((X).n_sclass == C_EXT) && \
2676 ((X).n_scnum > N_UNDEF) && \
2677 (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) || \
2678 ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))
2679 # define GCC_UNDEF_SYMBOL(X) \
2680 (((X).n_sclass == C_EXT) && ((X).n_scnum == N_UNDEF))
2681 # define GCC_SYMINC(X) ((X).n_numaux+1)
2682 # define GCC_SYMZERO(X) 0
2683 # define GCC_CHECK_HDR(X) (1)
2686 extern char *ldgetname ();
2688 /* COFF version to scan the name list of the loaded program for
2689 the symbols g++ uses for static constructors and destructors.
2691 The constructor table begins at __CTOR_LIST__ and contains a count
2692 of the number of pointers (or -1 if the constructors are built in a
2693 separate section by the linker), followed by the pointers to the
2694 constructor functions, terminated with a null pointer. The
2695 destructor table has the same format, and begins at __DTOR_LIST__. */
2698 scan_prog_file (prog_name
, which_pass
)
2700 enum pass which_pass
;
2702 LDFILE
*ldptr
= NULL
;
2703 int sym_index
, sym_count
;
2705 #ifdef COLLECT_EXPORT_LIST
2706 /* Should we generate an import list for given prog_name? */
2707 int import_flag
= (which_pass
== PASS_OBJ
? 0 : use_import_list (prog_name
));
2710 if (which_pass
!= PASS_FIRST
&& which_pass
!= PASS_OBJ
)
2713 #ifdef COLLECT_EXPORT_LIST
2714 /* We do not need scanning for some standard C libraries. */
2715 if (which_pass
== PASS_FIRST
&& ignore_library (prog_name
))
2718 /* On AIX we have a loop, because there is not much difference
2719 between an object and an archive. This trick allows us to
2720 eliminate scan_libraries() function. */
2724 if ((ldptr
= ldopen (prog_name
, ldptr
)) != NULL
)
2727 if (!MY_ISCOFF (HEADER (ldptr
).f_magic
))
2728 fatal ("%s: not a COFF file", prog_name
);
2730 #ifdef COLLECT_EXPORT_LIST
2731 /* Is current archive member a shared object? */
2732 is_shared
= HEADER (ldptr
).f_flags
& F_SHROBJ
;
2734 if (GCC_CHECK_HDR (ldptr
))
2736 sym_count
= GCC_SYMBOLS (ldptr
);
2737 sym_index
= GCC_SYMZERO (ldptr
);
2738 while (sym_index
< sym_count
)
2742 if (ldtbread (ldptr
, sym_index
, &symbol
) <= 0)
2744 sym_index
+= GCC_SYMINC (symbol
);
2746 if (GCC_OK_SYMBOL (symbol
))
2750 if ((name
= ldgetname (ldptr
, &symbol
)) == NULL
)
2751 continue; /* should never happen */
2753 #ifdef XCOFF_DEBUGGING_INFO
2754 /* All AIX function names have a duplicate entry
2755 beginning with a dot. */
2760 switch (is_ctor_dtor (name
))
2763 if (! is_shared
) add_to_list (&constructors
, name
);
2764 #ifdef COLLECT_EXPORT_LIST
2765 if (which_pass
== PASS_OBJ
)
2766 add_to_list (&exports
, name
);
2767 /* If this symbol was undefined and we are building
2768 an import list, we should add a symbol to this
2772 && is_in_list (name
, undefined
.first
))
2773 add_to_list (&imports
, name
);
2778 if (! is_shared
) add_to_list (&destructors
, name
);
2779 #ifdef COLLECT_EXPORT_LIST
2780 if (which_pass
== PASS_OBJ
)
2781 add_to_list (&exports
, name
);
2782 /* If this symbol was undefined and we are building
2783 an import list, we should add a symbol to this
2787 && is_in_list (name
, undefined
.first
))
2788 add_to_list (&imports
, name
);
2792 #ifdef COLLECT_EXPORT_LIST
2795 add_to_list (&constructors
, name
);
2800 add_to_list (&destructors
, name
);
2804 default: /* not a constructor or destructor */
2805 #ifdef COLLECT_EXPORT_LIST
2806 /* If we are building a shared object on AIX we need
2807 to explicitly export all global symbols or add
2808 them to import list. */
2811 if (which_pass
== PASS_OBJ
&& (! export_flag
))
2812 add_to_list (&exports
, name
);
2813 else if (! is_shared
&& which_pass
== PASS_FIRST
2815 && is_in_list(name
, undefined
.first
))
2816 add_to_list (&imports
, name
);
2822 #if !defined(EXTENDED_COFF)
2824 fprintf (stderr
, "\tsec=%d class=%d type=%s%o %s\n",
2825 symbol
.n_scnum
, symbol
.n_sclass
,
2826 (symbol
.n_type
? "0" : ""), symbol
.n_type
,
2831 "\tiss = %5d, value = %5d, index = %5d, name = %s\n",
2832 symbol
.iss
, symbol
.value
, symbol
.index
, name
);
2835 #ifdef COLLECT_EXPORT_LIST
2836 /* If we are building a shared object we should collect
2837 information about undefined symbols for later
2838 import list generation. */
2839 else if (shared_obj
&& GCC_UNDEF_SYMBOL (symbol
))
2843 if ((name
= ldgetname (ldptr
, &symbol
)) == NULL
)
2844 continue; /* should never happen */
2846 /* All AIX function names have a duplicate entry
2847 beginning with a dot. */
2850 add_to_list (&undefined
, name
);
2858 fatal ("%s: cannot open as COFF file", prog_name
);
2860 #ifdef COLLECT_EXPORT_LIST
2861 /* On AIX loop continues while there are more members in archive. */
2863 while (ldclose (ldptr
) == FAILURE
);
2865 /* Otherwise we simply close ldptr. */
2866 (void) ldclose(ldptr
);
2871 #ifdef COLLECT_EXPORT_LIST
2873 /* This new function is used to decide whether we should
2874 generate import list for an object or to use it directly. */
2876 use_import_list (prog_name
)
2881 /* If we do not build a shared object then import list should not be used. */
2882 if (! shared_obj
) return 0;
2884 /* Currently we check only for libgcc, but this can be changed in future. */
2885 p
= strstr (prog_name
, "libgcc.a");
2886 if (p
!= 0 && (strlen (p
) == sizeof ("libgcc.a") - 1))
2891 /* Given a library name without "lib" prefix, this function
2892 returns a full library name including a path. */
2894 resolve_lib_name (name
)
2900 for (i
= 0; libpaths
[i
]; i
++)
2901 if (libpaths
[i
]->max_len
> l
)
2902 l
= libpaths
[i
]->max_len
;
2904 lib_buf
= xmalloc (l
+ strlen(name
) + 10);
2906 for (i
= 0; libpaths
[i
]; i
++)
2908 struct prefix_list
*list
= libpaths
[i
]->plist
;
2909 for (; list
; list
= list
->next
)
2911 for (j
= 0; libexts
[j
]; j
++)
2913 /* The following lines are needed because path_prefix list
2914 may contain directories both with trailing '/' and
2917 if (list
->prefix
[strlen(list
->prefix
)-1] != '/')
2919 sprintf (lib_buf
, "%s%slib%s.%s",
2920 list
->prefix
, p
, name
, libexts
[j
]);
2921 if (debug
) fprintf (stderr
, "searching for: %s\n", lib_buf
);
2922 if (file_exists (lib_buf
))
2924 if (debug
) fprintf (stderr
, "found: %s\n", lib_buf
);
2931 fprintf (stderr
, "not found\n");
2933 fatal ("Library lib%s not found", name
);
2937 /* Array of standard AIX libraries which should not
2938 be scanned for ctors/dtors. */
2939 static char* aix_std_libs
[] = {
2944 "/usr/lib/libc_r.a",
2945 "/usr/lib/threads/libc.a",
2946 "/usr/ccs/lib/libc.a",
2947 "/usr/ccs/lib/libc_r.a",
2951 /* This function checks the filename and returns 1
2952 if this name matches the location of a standard AIX library. */
2954 ignore_library (name
)
2957 char **p
= &aix_std_libs
[0];
2958 while (*p
++ != NULL
)
2959 if (! strcmp (name
, *p
)) return 1;
2965 #endif /* OBJECT_FORMAT_COFF */
2969 * OSF/rose specific stuff.
2972 #ifdef OBJECT_FORMAT_ROSE
2974 /* Union of the various load commands */
2976 typedef union load_union
2978 ldc_header_t hdr
; /* common header */
2979 load_cmd_map_command_t map
; /* map indexing other load cmds */
2980 interpreter_command_t iprtr
; /* interpreter pathname */
2981 strings_command_t str
; /* load commands strings section */
2982 region_command_t region
; /* region load command */
2983 reloc_command_t reloc
; /* relocation section */
2984 package_command_t pkg
; /* package load command */
2985 symbols_command_t sym
; /* symbol sections */
2986 entry_command_t ent
; /* program start section */
2987 gen_info_command_t info
; /* object information */
2988 func_table_command_t func
; /* function constructors/destructors */
2991 /* Structure to point to load command and data section in memory. */
2993 typedef struct load_all
2995 load_union_t
*load
; /* load command */
2996 char *section
; /* pointer to section */
2999 /* Structure to contain information about a file mapped into memory. */
3003 char *start
; /* start of map */
3004 char *name
; /* filename */
3005 long size
; /* size of the file */
3006 long rounded_size
; /* size rounded to page boundary */
3007 int fd
; /* file descriptor */
3008 int rw
; /* != 0 if opened read/write */
3009 int use_mmap
; /* != 0 if mmap'ed */
3012 extern int decode_mach_o_hdr ();
3013 extern int encode_mach_o_hdr ();
3015 static void add_func_table
PROTO((mo_header_t
*, load_all_t
*,
3016 symbol_info_t
*, int));
3017 static void print_header
PROTO((mo_header_t
*));
3018 static void print_load_command
PROTO((load_union_t
*, size_t, int));
3019 static void bad_header
PROTO((int));
3020 static struct file_info
*read_file
PROTO((char *, int, int));
3021 static void end_file
PROTO((struct file_info
*));
3023 /* OSF/rose specific version to scan the name list of the loaded
3024 program for the symbols g++ uses for static constructors and
3027 The constructor table begins at __CTOR_LIST__ and contains a count
3028 of the number of pointers (or -1 if the constructors are built in a
3029 separate section by the linker), followed by the pointers to the
3030 constructor functions, terminated with a null pointer. The
3031 destructor table has the same format, and begins at __DTOR_LIST__. */
3034 scan_prog_file (prog_name
, which_pass
)
3036 enum pass which_pass
;
3040 load_all_t
*load_array
;
3041 load_all_t
*load_end
;
3042 load_all_t
*load_cmd
;
3043 int symbol_load_cmds
;
3049 struct file_info
*obj_file
;
3051 mo_lcid_t cmd_strings
= -1;
3052 symbol_info_t
*main_sym
= 0;
3053 int rw
= (which_pass
!= PASS_FIRST
);
3055 prog_fd
= open (prog_name
, (rw
) ? O_RDWR
: O_RDONLY
);
3057 fatal_perror ("cannot read %s", prog_name
);
3059 obj_file
= read_file (prog_name
, prog_fd
, rw
);
3060 obj
= obj_file
->start
;
3062 status
= decode_mach_o_hdr (obj
, MO_SIZEOF_RAW_HDR
, MOH_HEADER_VERSION
, &hdr
);
3063 if (status
!= MO_HDR_CONV_SUCCESS
)
3064 bad_header (status
);
3067 /* Do some basic sanity checks. Note we explicitly use the big endian magic number,
3068 since the hardware will automatically swap bytes for us on loading little endian
3071 #ifndef CROSS_COMPILE
3072 if (hdr
.moh_magic
!= MOH_MAGIC_MSB
3073 || hdr
.moh_header_version
!= MOH_HEADER_VERSION
3074 || hdr
.moh_byte_order
!= OUR_BYTE_ORDER
3075 || hdr
.moh_data_rep_id
!= OUR_DATA_REP_ID
3076 || hdr
.moh_cpu_type
!= OUR_CPU_TYPE
3077 || hdr
.moh_cpu_subtype
!= OUR_CPU_SUBTYPE
3078 || hdr
.moh_vendor_type
!= OUR_VENDOR_TYPE
)
3080 fatal ("incompatibilities between object file & expected values");
3085 print_header (&hdr
);
3087 offset
= hdr
.moh_first_cmd_off
;
3088 load_end
= load_array
3089 = (load_all_t
*) xcalloc (sizeof (load_all_t
), hdr
.moh_n_load_cmds
+ 2);
3091 /* Build array of load commands, calculating the offsets */
3092 for (i
= 0; i
< hdr
.moh_n_load_cmds
; i
++)
3094 load_union_t
*load_hdr
; /* load command header */
3096 load_cmd
= load_end
++;
3097 load_hdr
= (load_union_t
*) (obj
+ offset
);
3099 /* If modifying the program file, copy the header. */
3102 load_union_t
*ptr
= (load_union_t
*) xmalloc (load_hdr
->hdr
.ldci_cmd_size
);
3103 bcopy ((char *)load_hdr
, (char *)ptr
, load_hdr
->hdr
.ldci_cmd_size
);
3106 /* null out old command map, because we will rewrite at the end. */
3107 if (ptr
->hdr
.ldci_cmd_type
== LDC_CMD_MAP
)
3109 cmd_strings
= ptr
->map
.lcm_ld_cmd_strings
;
3110 ptr
->hdr
.ldci_cmd_type
= LDC_UNDEFINED
;
3114 load_cmd
->load
= load_hdr
;
3115 if (load_hdr
->hdr
.ldci_section_off
> 0)
3116 load_cmd
->section
= obj
+ load_hdr
->hdr
.ldci_section_off
;
3119 print_load_command (load_hdr
, offset
, i
);
3121 offset
+= load_hdr
->hdr
.ldci_cmd_size
;
3124 /* If the last command is the load command map and is not undefined,
3125 decrement the count of load commands. */
3126 if (rw
&& load_end
[-1].load
->hdr
.ldci_cmd_type
== LDC_UNDEFINED
)
3129 hdr
.moh_n_load_cmds
--;
3132 /* Go through and process each symbol table section. */
3133 symbol_load_cmds
= 0;
3134 for (load_cmd
= load_array
; load_cmd
< load_end
; load_cmd
++)
3136 load_union_t
*load_hdr
= load_cmd
->load
;
3138 if (load_hdr
->hdr
.ldci_cmd_type
== LDC_SYMBOLS
)
3144 char *kind
= "unknown";
3146 switch (load_hdr
->sym
.symc_kind
)
3148 case SYMC_IMPORTS
: kind
= "imports"; break;
3149 case SYMC_DEFINED_SYMBOLS
: kind
= "defined"; break;
3150 case SYMC_STABS
: kind
= "stabs"; break;
3153 fprintf (stderr
, "\nProcessing symbol table #%d, offset = 0x%.8lx, kind = %s\n",
3154 symbol_load_cmds
, load_hdr
->hdr
.ldci_section_off
, kind
);
3157 if (load_hdr
->sym
.symc_kind
!= SYMC_DEFINED_SYMBOLS
)
3160 str_sect
= load_array
[load_hdr
->sym
.symc_strings_section
].section
;
3161 if (str_sect
== (char *) 0)
3162 fatal ("string section missing");
3164 if (load_cmd
->section
== (char *) 0)
3165 fatal ("section pointer missing");
3167 num_syms
= load_hdr
->sym
.symc_nentries
;
3168 for (i
= 0; i
< num_syms
; i
++)
3170 symbol_info_t
*sym
= ((symbol_info_t
*) load_cmd
->section
) + i
;
3171 char *name
= sym
->si_name
.symbol_name
+ str_sect
;
3178 char *n
= name
+ strlen (name
) - strlen (NAME__MAIN
);
3180 if ((n
- name
) < 0 || strcmp (n
, NAME__MAIN
))
3190 switch (is_ctor_dtor (name
))
3193 add_to_list (&constructors
, name
);
3197 add_to_list (&destructors
, name
);
3200 default: /* not a constructor or destructor */
3206 fprintf (stderr
, "\ttype = 0x%.4x, sc = 0x%.2x, flags = 0x%.8x, name = %.30s\n",
3207 sym
->si_type
, sym
->si_sc_type
, sym
->si_flags
, name
);
3212 if (symbol_load_cmds
== 0)
3213 fatal ("no symbol table found");
3215 /* Update the program file now, rewrite header and load commands. At present,
3216 we assume that there is enough space after the last load command to insert
3217 one more. Since the first section written out is page aligned, and the
3218 number of load commands is small, this is ok for the present. */
3222 load_union_t
*load_map
;
3225 if (cmd_strings
== -1)
3226 fatal ("no cmd_strings found");
3228 /* Add __main to initializer list.
3229 If we are building a program instead of a shared library, do not
3230 do anything, since in the current version, you cannot do mallocs
3231 and such in the constructors. */
3233 if (main_sym
!= (symbol_info_t
*) 0
3234 && ((hdr
.moh_flags
& MOH_EXECABLE_F
) == 0))
3235 add_func_table (&hdr
, load_array
, main_sym
, FNTC_INITIALIZATION
);
3238 fprintf (stderr
, "\nUpdating header and load commands.\n\n");
3240 hdr
.moh_n_load_cmds
++;
3241 size
= sizeof (load_cmd_map_command_t
) + (sizeof (mo_offset_t
) * (hdr
.moh_n_load_cmds
- 1));
3243 /* Create new load command map. */
3245 fprintf (stderr
, "load command map, %d cmds, new size %ld.\n",
3246 (int)hdr
.moh_n_load_cmds
, (long)size
);
3248 load_map
= (load_union_t
*) xcalloc (1, size
);
3249 load_map
->map
.ldc_header
.ldci_cmd_type
= LDC_CMD_MAP
;
3250 load_map
->map
.ldc_header
.ldci_cmd_size
= size
;
3251 load_map
->map
.lcm_ld_cmd_strings
= cmd_strings
;
3252 load_map
->map
.lcm_nentries
= hdr
.moh_n_load_cmds
;
3253 load_array
[hdr
.moh_n_load_cmds
-1].load
= load_map
;
3255 offset
= hdr
.moh_first_cmd_off
;
3256 for (i
= 0; i
< hdr
.moh_n_load_cmds
; i
++)
3258 load_map
->map
.lcm_map
[i
] = offset
;
3259 if (load_array
[i
].load
->hdr
.ldci_cmd_type
== LDC_CMD_MAP
)
3260 hdr
.moh_load_map_cmd_off
= offset
;
3262 offset
+= load_array
[i
].load
->hdr
.ldci_cmd_size
;
3265 hdr
.moh_sizeofcmds
= offset
- MO_SIZEOF_RAW_HDR
;
3268 print_header (&hdr
);
3271 status
= encode_mach_o_hdr (&hdr
, obj
, MO_SIZEOF_RAW_HDR
);
3272 if (status
!= MO_HDR_CONV_SUCCESS
)
3273 bad_header (status
);
3276 fprintf (stderr
, "writing load commands.\n\n");
3278 /* Write load commands */
3279 offset
= hdr
.moh_first_cmd_off
;
3280 for (i
= 0; i
< hdr
.moh_n_load_cmds
; i
++)
3282 load_union_t
*load_hdr
= load_array
[i
].load
;
3283 size_t size
= load_hdr
->hdr
.ldci_cmd_size
;
3286 print_load_command (load_hdr
, offset
, i
);
3288 bcopy ((char *) load_hdr
, (char *) (obj
+ offset
), size
);
3293 end_file (obj_file
);
3295 if (close (prog_fd
))
3296 fatal_perror ("closing %s", prog_name
);
3299 fprintf (stderr
, "\n");
3303 /* Add a function table to the load commands to call a function
3304 on initiation or termination of the process. */
3307 add_func_table (hdr_p
, load_array
, sym
, type
)
3308 mo_header_t
*hdr_p
; /* pointer to global header */
3309 load_all_t
*load_array
; /* array of ptrs to load cmds */
3310 symbol_info_t
*sym
; /* pointer to symbol entry */
3311 int type
; /* fntc_type value */
3313 /* Add a new load command. */
3314 int num_cmds
= ++hdr_p
->moh_n_load_cmds
;
3315 int load_index
= num_cmds
- 1;
3316 size_t size
= sizeof (func_table_command_t
) + sizeof (mo_addr_t
);
3317 load_union_t
*ptr
= xcalloc (1, size
);
3318 load_all_t
*load_cmd
;
3321 /* Set the unresolved address bit in the header to force the loader to be
3322 used, since kernel exec does not call the initialization functions. */
3323 hdr_p
->moh_flags
|= MOH_UNRESOLVED_F
;
3325 load_cmd
= &load_array
[load_index
];
3326 load_cmd
->load
= ptr
;
3327 load_cmd
->section
= (char *) 0;
3329 /* Fill in func table load command. */
3330 ptr
->func
.ldc_header
.ldci_cmd_type
= LDC_FUNC_TABLE
;
3331 ptr
->func
.ldc_header
.ldci_cmd_size
= size
;
3332 ptr
->func
.ldc_header
.ldci_section_off
= 0;
3333 ptr
->func
.ldc_header
.ldci_section_len
= 0;
3334 ptr
->func
.fntc_type
= type
;
3335 ptr
->func
.fntc_nentries
= 1;
3337 /* copy address, turn it from abs. address to (region,offset) if necessary. */
3338 /* Is the symbol already expressed as (region, offset)? */
3339 if ((sym
->si_flags
& SI_ABSOLUTE_VALUE_F
) == 0)
3341 ptr
->func
.fntc_entry_loc
[i
].adr_lcid
= sym
->si_value
.def_val
.adr_lcid
;
3342 ptr
->func
.fntc_entry_loc
[i
].adr_sctoff
= sym
->si_value
.def_val
.adr_sctoff
;
3345 /* If not, figure out which region it's in. */
3348 mo_vm_addr_t addr
= sym
->si_value
.abs_val
;
3351 for (i
= 0; i
< load_index
; i
++)
3353 if (load_array
[i
].load
->hdr
.ldci_cmd_type
== LDC_REGION
)
3355 region_command_t
*region_ptr
= &load_array
[i
].load
->region
;
3357 if ((region_ptr
->regc_flags
& REG_ABS_ADDR_F
) != 0
3358 && addr
>= region_ptr
->regc_addr
.vm_addr
3359 && addr
<= region_ptr
->regc_addr
.vm_addr
+ region_ptr
->regc_vm_size
)
3361 ptr
->func
.fntc_entry_loc
[0].adr_lcid
= i
;
3362 ptr
->func
.fntc_entry_loc
[0].adr_sctoff
= addr
- region_ptr
->regc_addr
.vm_addr
;
3370 fatal ("could not convert 0x%l.8x into a region", addr
);
3375 "%s function, region %d, offset = %ld (0x%.8lx)\n",
3376 (type
== FNTC_INITIALIZATION
) ? "init" : "term",
3377 (int)ptr
->func
.fntc_entry_loc
[i
].adr_lcid
,
3378 (long)ptr
->func
.fntc_entry_loc
[i
].adr_sctoff
,
3379 (long)ptr
->func
.fntc_entry_loc
[i
].adr_sctoff
);
3384 /* Print the global header for an OSF/rose object. */
3387 print_header (hdr_ptr
)
3388 mo_header_t
*hdr_ptr
;
3390 fprintf (stderr
, "\nglobal header:\n");
3391 fprintf (stderr
, "\tmoh_magic = 0x%.8lx\n", hdr_ptr
->moh_magic
);
3392 fprintf (stderr
, "\tmoh_major_version = %d\n", (int)hdr_ptr
->moh_major_version
);
3393 fprintf (stderr
, "\tmoh_minor_version = %d\n", (int)hdr_ptr
->moh_minor_version
);
3394 fprintf (stderr
, "\tmoh_header_version = %d\n", (int)hdr_ptr
->moh_header_version
);
3395 fprintf (stderr
, "\tmoh_max_page_size = %d\n", (int)hdr_ptr
->moh_max_page_size
);
3396 fprintf (stderr
, "\tmoh_byte_order = %d\n", (int)hdr_ptr
->moh_byte_order
);
3397 fprintf (stderr
, "\tmoh_data_rep_id = %d\n", (int)hdr_ptr
->moh_data_rep_id
);
3398 fprintf (stderr
, "\tmoh_cpu_type = %d\n", (int)hdr_ptr
->moh_cpu_type
);
3399 fprintf (stderr
, "\tmoh_cpu_subtype = %d\n", (int)hdr_ptr
->moh_cpu_subtype
);
3400 fprintf (stderr
, "\tmoh_vendor_type = %d\n", (int)hdr_ptr
->moh_vendor_type
);
3401 fprintf (stderr
, "\tmoh_load_map_cmd_off = %d\n", (int)hdr_ptr
->moh_load_map_cmd_off
);
3402 fprintf (stderr
, "\tmoh_first_cmd_off = %d\n", (int)hdr_ptr
->moh_first_cmd_off
);
3403 fprintf (stderr
, "\tmoh_sizeofcmds = %d\n", (int)hdr_ptr
->moh_sizeofcmds
);
3404 fprintf (stderr
, "\tmon_n_load_cmds = %d\n", (int)hdr_ptr
->moh_n_load_cmds
);
3405 fprintf (stderr
, "\tmoh_flags = 0x%.8lx", (long)hdr_ptr
->moh_flags
);
3407 if (hdr_ptr
->moh_flags
& MOH_RELOCATABLE_F
)
3408 fprintf (stderr
, ", relocatable");
3410 if (hdr_ptr
->moh_flags
& MOH_LINKABLE_F
)
3411 fprintf (stderr
, ", linkable");
3413 if (hdr_ptr
->moh_flags
& MOH_EXECABLE_F
)
3414 fprintf (stderr
, ", execable");
3416 if (hdr_ptr
->moh_flags
& MOH_EXECUTABLE_F
)
3417 fprintf (stderr
, ", executable");
3419 if (hdr_ptr
->moh_flags
& MOH_UNRESOLVED_F
)
3420 fprintf (stderr
, ", unresolved");
3422 fprintf (stderr
, "\n\n");
3427 /* Print a short summary of a load command. */
3430 print_load_command (load_hdr
, offset
, number
)
3431 load_union_t
*load_hdr
;
3435 mo_long_t type
= load_hdr
->hdr
.ldci_cmd_type
;
3436 char *type_str
= (char *) 0;
3440 case LDC_UNDEFINED
: type_str
= "UNDEFINED"; break;
3441 case LDC_CMD_MAP
: type_str
= "CMD_MAP"; break;
3442 case LDC_INTERPRETER
: type_str
= "INTERPRETER"; break;
3443 case LDC_STRINGS
: type_str
= "STRINGS"; break;
3444 case LDC_REGION
: type_str
= "REGION"; break;
3445 case LDC_RELOC
: type_str
= "RELOC"; break;
3446 case LDC_PACKAGE
: type_str
= "PACKAGE"; break;
3447 case LDC_SYMBOLS
: type_str
= "SYMBOLS"; break;
3448 case LDC_ENTRY
: type_str
= "ENTRY"; break;
3449 case LDC_FUNC_TABLE
: type_str
= "FUNC_TABLE"; break;
3450 case LDC_GEN_INFO
: type_str
= "GEN_INFO"; break;
3454 "cmd %2d, sz: 0x%.2lx, coff: 0x%.3lx, doff: 0x%.6lx, dlen: 0x%.6lx",
3456 (long) load_hdr
->hdr
.ldci_cmd_size
,
3458 (long) load_hdr
->hdr
.ldci_section_off
,
3459 (long) load_hdr
->hdr
.ldci_section_len
);
3461 if (type_str
== (char *) 0)
3462 fprintf (stderr
, ", ty: unknown (%ld)\n", (long) type
);
3464 else if (type
!= LDC_REGION
)
3465 fprintf (stderr
, ", ty: %s\n", type_str
);
3470 switch (load_hdr
->region
.regc_usage_type
)
3472 case REG_TEXT_T
: region
= ", .text"; break;
3473 case REG_DATA_T
: region
= ", .data"; break;
3474 case REG_BSS_T
: region
= ", .bss"; break;
3475 case REG_GLUE_T
: region
= ", .glue"; break;
3476 #if defined (REG_RDATA_T) && defined (REG_SDATA_T) && defined (REG_SBSS_T) /*mips*/
3477 case REG_RDATA_T
: region
= ", .rdata"; break;
3478 case REG_SDATA_T
: region
= ", .sdata"; break;
3479 case REG_SBSS_T
: region
= ", .sbss"; break;
3483 fprintf (stderr
, ", ty: %s, vaddr: 0x%.8lx, vlen: 0x%.6lx%s\n",
3485 (long) load_hdr
->region
.regc_vm_addr
,
3486 (long) load_hdr
->region
.regc_vm_size
,
3494 /* Fatal error when {en,de}code_mach_o_header fails. */
3500 char *msg
= (char *) 0;
3504 case MO_ERROR_BAD_MAGIC
: msg
= "bad magic number"; break;
3505 case MO_ERROR_BAD_HDR_VERS
: msg
= "bad header version"; break;
3506 case MO_ERROR_BAD_RAW_HDR_VERS
: msg
= "bad raw header version"; break;
3507 case MO_ERROR_BUF2SML
: msg
= "raw header buffer too small"; break;
3508 case MO_ERROR_OLD_RAW_HDR_FILE
: msg
= "old raw header file"; break;
3509 case MO_ERROR_UNSUPPORTED_VERS
: msg
= "unsupported version"; break;
3512 if (msg
== (char *) 0)
3513 fatal ("unknown {de,en}code_mach_o_hdr return value %d", status
);
3519 /* Read a file into a memory buffer. */
3521 static struct file_info
*
3522 read_file (name
, fd
, rw
)
3523 char *name
; /* filename */
3524 int fd
; /* file descriptor */
3525 int rw
; /* read/write */
3527 struct stat stat_pkt
;
3528 struct file_info
*p
= (struct file_info
*) xcalloc (sizeof (struct file_info
), 1);
3530 static int page_size
;
3533 if (fstat (fd
, &stat_pkt
) < 0)
3534 fatal_perror ("fstat %s", name
);
3537 p
->size
= stat_pkt
.st_size
;
3538 p
->rounded_size
= stat_pkt
.st_size
;
3544 fprintf (stderr
, "mmap %s, %s\n", name
, (rw
) ? "read/write" : "read-only");
3547 page_size
= sysconf (_SC_PAGE_SIZE
);
3549 p
->rounded_size
= ((p
->size
+ page_size
- 1) / page_size
) * page_size
;
3550 p
->start
= mmap ((caddr_t
) 0,
3551 (rw
) ? p
->rounded_size
: p
->size
,
3552 (rw
) ? (PROT_READ
| PROT_WRITE
) : PROT_READ
,
3553 MAP_FILE
| MAP_VARIABLE
| MAP_SHARED
,
3557 if (p
->start
!= (char *) 0 && p
->start
!= (char *) -1)
3561 #endif /* USE_MMAP */
3566 fprintf (stderr
, "read %s\n", name
);
3569 p
->start
= xmalloc (p
->size
);
3570 if (lseek (fd
, 0L, SEEK_SET
) < 0)
3571 fatal_perror ("lseek to 0 on %s", name
);
3573 len
= read (fd
, p
->start
, p
->size
);
3575 fatal_perror ("read %s", name
);
3578 fatal ("read %ld bytes, expected %ld, from %s", len
, p
->size
, name
);
3584 /* Do anything necessary to write a file back from memory. */
3588 struct file_info
*ptr
; /* file information block */
3596 fprintf (stderr
, "msync %s\n", ptr
->name
);
3598 if (msync (ptr
->start
, ptr
->rounded_size
, MS_ASYNC
))
3599 fatal_perror ("msync %s", ptr
->name
);
3603 fprintf (stderr
, "munmap %s\n", ptr
->name
);
3605 if (munmap (ptr
->start
, ptr
->size
))
3606 fatal_perror ("munmap %s", ptr
->name
);
3609 #endif /* USE_MMAP */
3616 fprintf (stderr
, "write %s\n", ptr
->name
);
3618 if (lseek (ptr
->fd
, 0L, SEEK_SET
) < 0)
3619 fatal_perror ("lseek to 0 on %s", ptr
->name
);
3621 len
= write (ptr
->fd
, ptr
->start
, ptr
->size
);
3623 fatal_perror ("write %s", ptr
->name
);
3625 if (len
!= ptr
->size
)
3626 fatal ("wrote %ld bytes, expected %ld, to %s", len
, ptr
->size
, ptr
->name
);
3635 #endif /* OBJECT_FORMAT_ROSE */