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Commit | Line | Data |
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4e81a331 RS |
1 | /* Collect static initialization info into data structures |
2 | that can be traversed by C++ initialization and finalization | |
3 | routines. | |
4 | ||
96317659 | 5 | Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc. |
4e81a331 | 6 | Contributed by Chris Smith (csmith@convex.com). |
96317659 | 7 | Heavily modified by Michael Meissner (meissner@cygnus.com), |
4e81a331 RS |
8 | Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com). |
9 | ||
10 | This file is part of GNU CC. | |
11 | ||
12 | GNU CC is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2, or (at your option) | |
15 | any later version. | |
16 | ||
17 | GNU CC is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with GNU CC; see the file COPYING. If not, write to | |
940d9d63 RK |
24 | the Free Software Foundation, 59 Temple Place - Suite 330, |
25 | Boston, MA 02111-1307, USA. */ | |
4e81a331 RS |
26 | |
27 | ||
28 | /* Build tables of static constructors and destructors and run ld. */ | |
29 | ||
c102bba0 | 30 | #include "config.h" |
4e81a331 RS |
31 | #include <sys/types.h> |
32 | #include <stdio.h> | |
4e81a331 | 33 | #include <ctype.h> |
4e81a331 RS |
34 | #include <errno.h> |
35 | #include <signal.h> | |
36 | #include <sys/file.h> | |
37 | #include <sys/stat.h> | |
e6701a47 | 38 | #ifdef NO_WAIT_H |
4e81a331 | 39 | #include <sys/wait.h> |
e6701a47 | 40 | #endif |
4e81a331 | 41 | |
c102bba0 RK |
42 | #define COLLECT |
43 | ||
44 | #include "demangle.h" | |
45 | #include "obstack.h" | |
46 | ||
ed5b9462 RS |
47 | #ifndef errno |
48 | extern int errno; | |
49 | #endif | |
50 | ||
96317659 RK |
51 | #ifndef HAVE_STRERROR |
52 | #if defined(bsd4_4) | |
5d672cd7 JW |
53 | extern const char *const sys_errlist[]; |
54 | #else | |
55 | extern char *sys_errlist[]; | |
56 | #endif | |
57 | extern int sys_nerr; | |
96317659 RK |
58 | #else |
59 | char *strerror(); | |
60 | #endif | |
5d672cd7 | 61 | |
a3184468 JM |
62 | /* Obstack allocation and deallocation routines. */ |
63 | #define obstack_chunk_alloc xmalloc | |
64 | #define obstack_chunk_free free | |
65 | ||
66 | #if !defined (__STDC__) && !defined (const) | |
67 | #define const | |
4e81a331 RS |
68 | #endif |
69 | ||
ed5b9462 RS |
70 | #ifdef USG |
71 | #define vfork fork | |
72 | #endif | |
73 | ||
4d1a011f RK |
74 | /* Add prototype support. */ |
75 | #ifndef PROTO | |
76 | #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__) | |
77 | #define PROTO(ARGS) ARGS | |
78 | #else | |
79 | #define PROTO(ARGS) () | |
80 | #endif | |
81 | #endif | |
82 | ||
ed5b9462 RS |
83 | #ifndef R_OK |
84 | #define R_OK 4 | |
85 | #define W_OK 2 | |
86 | #define X_OK 1 | |
87 | #endif | |
88 | ||
0b90f9c2 ILT |
89 | #ifndef WIFSIGNALED |
90 | #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) | |
91 | #endif | |
92 | #ifndef WTERMSIG | |
93 | #define WTERMSIG(S) ((S) & 0x7f) | |
94 | #endif | |
95 | #ifndef WIFEXITED | |
96 | #define WIFEXITED(S) (((S) & 0xff) == 0) | |
97 | #endif | |
98 | #ifndef WEXITSTATUS | |
99 | #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) | |
100 | #endif | |
101 | ||
ed5b9462 RS |
102 | /* On MSDOS, write temp files in current dir |
103 | because there's no place else we can expect to use. */ | |
4b19dee8 | 104 | #ifdef __MSDOS__ |
ed5b9462 RS |
105 | #ifndef P_tmpdir |
106 | #define P_tmpdir "./" | |
107 | #endif | |
108 | #endif | |
109 | \f | |
110 | /* On certain systems, we have code that works by scanning the object file | |
111 | directly. But this code uses system-specific header files and library | |
bb59f9a6 RS |
112 | functions, so turn it off in a cross-compiler. Likewise, the names of |
113 | the utilities aren't correct for a cross-compiler; we have to hope that | |
114 | cross-versions are in the proper directories. */ | |
ed5b9462 RS |
115 | |
116 | #ifdef CROSS_COMPILE | |
68d69835 | 117 | #undef SUNOS4_SHARED_LIBRARIES |
ed5b9462 RS |
118 | #undef OBJECT_FORMAT_COFF |
119 | #undef OBJECT_FORMAT_ROSE | |
bb59f9a6 RS |
120 | #undef MD_EXEC_PREFIX |
121 | #undef REAL_LD_FILE_NAME | |
122 | #undef REAL_NM_FILE_NAME | |
123 | #undef REAL_STRIP_FILE_NAME | |
ed5b9462 RS |
124 | #endif |
125 | ||
126 | /* If we can't use a special method, use the ordinary one: | |
127 | run nm to find what symbols are present. | |
128 | In a cross-compiler, this means you need a cross nm, | |
129 | but that isn't quite as unpleasant as special headers. */ | |
130 | ||
131 | #if !defined (OBJECT_FORMAT_COFF) && !defined (OBJECT_FORMAT_ROSE) | |
132 | #define OBJECT_FORMAT_NONE | |
133 | #endif | |
134 | ||
135 | #ifdef OBJECT_FORMAT_COFF | |
136 | ||
137 | #include <a.out.h> | |
138 | #include <ar.h> | |
139 | ||
140 | #ifdef UMAX | |
141 | #include <sgs.h> | |
142 | #endif | |
143 | ||
033ba47c RS |
144 | /* Many versions of ldfcn.h define these. */ |
145 | #ifdef FREAD | |
ed5b9462 RS |
146 | #undef FREAD |
147 | #undef FWRITE | |
148 | #endif | |
149 | ||
150 | #include <ldfcn.h> | |
151 | ||
7243ba7d RK |
152 | /* Some systems have an ISCOFF macro, but others do not. In some cases |
153 | the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines | |
154 | that either do not have an ISCOFF macro in /usr/include or for those | |
155 | where it is wrong. */ | |
156 | ||
e99467d2 RS |
157 | #ifndef MY_ISCOFF |
158 | #define MY_ISCOFF(X) ISCOFF (X) | |
159 | #endif | |
160 | ||
1a8463c9 RK |
161 | #ifdef XCOFF_DEBUGGING_INFO |
162 | #define XCOFF_SCAN_LIBS | |
163 | #endif | |
164 | ||
ed5b9462 RS |
165 | #endif /* OBJECT_FORMAT_COFF */ |
166 | ||
4e81a331 RS |
167 | #ifdef OBJECT_FORMAT_ROSE |
168 | ||
169 | #ifdef _OSF_SOURCE | |
170 | #define USE_MMAP | |
171 | #endif | |
172 | ||
173 | #ifdef USE_MMAP | |
174 | #include <sys/mman.h> | |
175 | #endif | |
176 | ||
177 | #include <unistd.h> | |
178 | #include <mach_o_format.h> | |
179 | #include <mach_o_header.h> | |
180 | #include <mach_o_vals.h> | |
181 | #include <mach_o_types.h> | |
ed5b9462 | 182 | |
4e81a331 RS |
183 | #endif /* OBJECT_FORMAT_ROSE */ |
184 | ||
ed5b9462 RS |
185 | #ifdef OBJECT_FORMAT_NONE |
186 | ||
4e81a331 RS |
187 | /* Default flags to pass to nm. */ |
188 | #ifndef NM_FLAGS | |
189 | #define NM_FLAGS "-p" | |
190 | #endif | |
191 | ||
ed5b9462 | 192 | #endif /* OBJECT_FORMAT_NONE */ |
d6cf3187 RS |
193 | |
194 | /* Some systems use __main in a way incompatible with its use in gcc, in these | |
195 | cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to | |
196 | give the same symbol without quotes for an alternative entry point. You | |
ddd5a7c1 | 197 | must define both, or neither. */ |
d6cf3187 RS |
198 | #ifndef NAME__MAIN |
199 | #define NAME__MAIN "__main" | |
200 | #define SYMBOL__MAIN __main | |
201 | #endif | |
202 | ||
1a8463c9 | 203 | #if defined (LDD_SUFFIX) || SUNOS4_SHARED_LIBRARIES || defined(XCOFF_SCAN_LIBS) |
68d69835 JM |
204 | #define SCAN_LIBRARIES |
205 | #endif | |
a3184468 JM |
206 | |
207 | #ifdef USE_COLLECT2 | |
208 | int do_collecting = 1; | |
209 | #else | |
210 | int do_collecting = 0; | |
211 | #endif | |
4e81a331 RS |
212 | \f |
213 | /* Linked lists of constructor and destructor names. */ | |
214 | ||
215 | struct id | |
216 | { | |
217 | struct id *next; | |
218 | int sequence; | |
219 | char name[1]; | |
220 | }; | |
221 | ||
222 | struct head | |
223 | { | |
224 | struct id *first; | |
225 | struct id *last; | |
226 | int number; | |
227 | }; | |
228 | ||
229 | /* Enumeration giving which pass this is for scanning the program file. */ | |
230 | ||
231 | enum pass { | |
232 | PASS_FIRST, /* without constructors */ | |
cbbbd917 | 233 | PASS_OBJ, /* individual objects */ |
68d69835 | 234 | PASS_LIB, /* looking for shared libraries */ |
4e81a331 RS |
235 | PASS_SECOND /* with constructors linked in */ |
236 | }; | |
237 | ||
ed5b9462 | 238 | #ifndef NO_SYS_SIGLIST |
1b7ca660 | 239 | #ifndef DONT_DECLARE_SYS_SIGLIST |
4e81a331 | 240 | extern char *sys_siglist[]; |
ed5b9462 | 241 | #endif |
1b7ca660 | 242 | #endif |
4e81a331 RS |
243 | extern char *version_string; |
244 | ||
a3184468 | 245 | int vflag; /* true if -v */ |
4e81a331 | 246 | static int rflag; /* true if -r */ |
a87104d9 | 247 | static int strip_flag; /* true if -s */ |
4e81a331 | 248 | |
a3184468 | 249 | int debug; /* true if -debug */ |
4e81a331 | 250 | |
68d69835 JM |
251 | static int shared_obj; /* true if -shared */ |
252 | ||
4e81a331 RS |
253 | static int temp_filename_length; /* Length of temp_filename */ |
254 | static char *temp_filename; /* Base of temp filenames */ | |
255 | static char *c_file; /* <xxx>.c for constructor/destructor list. */ | |
256 | static char *o_file; /* <xxx>.o for constructor/destructor list. */ | |
cbbbd917 | 257 | static char *export_file; /* <xxx>.x for AIX export list. */ |
a3184468 | 258 | char *ldout; /* File for ld errors. */ |
0cdd3ddd | 259 | static char *output_file; /* Output file for ld. */ |
4e81a331 | 260 | static char *nm_file_name; /* pathname of nm */ |
68d69835 | 261 | static char *ldd_file_name; /* pathname of ldd (or equivalent) */ |
a87104d9 | 262 | static char *strip_file_name; /* pathname of strip */ |
a3184468 | 263 | char *c_file_name; /* pathname of gcc */ |
cbbbd917 | 264 | static char *initname, *fininame; /* names of init and fini funcs */ |
4e81a331 RS |
265 | |
266 | static struct head constructors; /* list of constructors found */ | |
267 | static struct head destructors; /* list of destructors found */ | |
cbbbd917 | 268 | static struct head exports; /* list of exported symbols */ |
4e81a331 | 269 | |
a3184468 JM |
270 | struct obstack temporary_obstack; |
271 | struct obstack permanent_obstack; | |
272 | char * temporary_firstobj; | |
273 | ||
274 | /* Defined in the automatically-generated underscore.c. */ | |
275 | extern int prepends_underscore; | |
276 | ||
ed5b9462 RS |
277 | extern char *getenv (); |
278 | extern char *mktemp (); | |
4d1a011f RK |
279 | extern FILE *fdopen (); |
280 | ||
281 | /* Structure to hold all the directories in which to search for files to | |
282 | execute. */ | |
283 | ||
284 | struct prefix_list | |
285 | { | |
286 | char *prefix; /* String to prepend to the path. */ | |
287 | struct prefix_list *next; /* Next in linked list. */ | |
288 | }; | |
289 | ||
290 | struct path_prefix | |
291 | { | |
292 | struct prefix_list *plist; /* List of prefixes to try */ | |
293 | int max_len; /* Max length of a prefix in PLIST */ | |
294 | char *name; /* Name of this list (used in config stuff) */ | |
295 | }; | |
296 | ||
a3184468 JM |
297 | void collect_exit PROTO((int)); |
298 | void collect_execute PROTO((char *, char **, char *)); | |
299 | void dump_file PROTO((char *)); | |
4d1a011f RK |
300 | static void handler PROTO((int)); |
301 | static int is_ctor_dtor PROTO((char *)); | |
302 | static void choose_temp_base PROTO((void)); | |
303 | static int is_in_prefix_list PROTO((struct path_prefix *, char *, int)); | |
304 | static char *find_a_file PROTO((struct path_prefix *, char *)); | |
305 | static void add_prefix PROTO((struct path_prefix *, char *)); | |
306 | static void prefix_from_env PROTO((char *, struct path_prefix *)); | |
cbbbd917 | 307 | static void prefix_from_string PROTO((char *, struct path_prefix *)); |
4d1a011f RK |
308 | static void do_wait PROTO((char *)); |
309 | static void fork_execute PROTO((char *, char **)); | |
310 | static void maybe_unlink PROTO((char *)); | |
311 | static void add_to_list PROTO((struct head *, char *)); | |
312 | static void write_list PROTO((FILE *, char *, struct id *)); | |
313 | static void write_list_with_asm PROTO((FILE *, char *, struct id *)); | |
314 | static void write_c_file PROTO((FILE *, char *)); | |
cbbbd917 | 315 | static void write_export_file PROTO((FILE *)); |
4d1a011f | 316 | static void scan_prog_file PROTO((char *, enum pass)); |
68d69835 | 317 | static void scan_libraries PROTO((char *)); |
ed5b9462 | 318 | |
a3184468 JM |
319 | char *xcalloc (); |
320 | char *xmalloc (); | |
3f7cc57a MS |
321 | |
322 | extern char *index (); | |
323 | extern char *rindex (); | |
a3184468 | 324 | extern void free (); |
4e81a331 | 325 | \f |
f28e8a68 | 326 | #ifdef NO_DUP2 |
4d1a011f | 327 | int |
f28e8a68 RS |
328 | dup2 (oldfd, newfd) |
329 | int oldfd; | |
330 | int newfd; | |
331 | { | |
332 | int fdtmp[256]; | |
333 | int fdx = 0; | |
334 | int fd; | |
335 | ||
336 | if (oldfd == newfd) | |
eadbc961 | 337 | return oldfd; |
f28e8a68 | 338 | close (newfd); |
eadbc961 | 339 | while ((fd = dup (oldfd)) != newfd && fd >= 0) /* good enough for low fd's */ |
f28e8a68 RS |
340 | fdtmp[fdx++] = fd; |
341 | while (fdx > 0) | |
342 | close (fdtmp[--fdx]); | |
4d1a011f | 343 | |
eadbc961 | 344 | return fd; |
f28e8a68 RS |
345 | } |
346 | #endif | |
347 | ||
ed5b9462 | 348 | char * |
1fab8e81 | 349 | my_strerror (e) |
4e81a331 RS |
350 | int e; |
351 | { | |
4e81a331 | 352 | |
aae807c0 RK |
353 | #ifdef HAVE_STRERROR |
354 | return strerror (e); | |
355 | ||
356 | #else | |
357 | ||
358 | static char buffer[30]; | |
4e81a331 RS |
359 | if (!e) |
360 | return ""; | |
361 | ||
362 | if (e > 0 && e < sys_nerr) | |
363 | return sys_errlist[e]; | |
364 | ||
365 | sprintf (buffer, "Unknown error %d", e); | |
366 | return buffer; | |
aae807c0 | 367 | #endif |
4e81a331 | 368 | } |
4e81a331 RS |
369 | \f |
370 | /* Delete tempfiles and exit function. */ | |
371 | ||
a3184468 JM |
372 | void |
373 | collect_exit (status) | |
4e81a331 RS |
374 | int status; |
375 | { | |
ed5b9462 | 376 | if (c_file != 0 && c_file[0]) |
4e81a331 RS |
377 | maybe_unlink (c_file); |
378 | ||
ed5b9462 | 379 | if (o_file != 0 && o_file[0]) |
4e81a331 RS |
380 | maybe_unlink (o_file); |
381 | ||
cbbbd917 JM |
382 | if (export_file != 0 && export_file[0]) |
383 | maybe_unlink (export_file); | |
384 | ||
a3184468 JM |
385 | if (ldout != 0 && ldout[0]) |
386 | { | |
387 | dump_file (ldout); | |
388 | maybe_unlink (ldout); | |
389 | } | |
390 | ||
0cdd3ddd RS |
391 | if (status != 0 && output_file != 0 && output_file[0]) |
392 | maybe_unlink (output_file); | |
393 | ||
4e81a331 RS |
394 | exit (status); |
395 | } | |
396 | ||
397 | \f | |
4e81a331 RS |
398 | /* Die when sys call fails. */ |
399 | ||
a3184468 | 400 | void |
1fab8e81 | 401 | fatal_perror (string, arg1, arg2, arg3) |
bd1a74b1 | 402 | char *string, *arg1, *arg2, *arg3; |
4e81a331 | 403 | { |
4e81a331 RS |
404 | int e = errno; |
405 | ||
626e18ea | 406 | fprintf (stderr, "collect2: "); |
1fab8e81 RS |
407 | fprintf (stderr, string, arg1, arg2, arg3); |
408 | fprintf (stderr, ": %s\n", my_strerror (e)); | |
a3184468 | 409 | collect_exit (1); |
4e81a331 RS |
410 | } |
411 | ||
412 | /* Just die. */ | |
413 | ||
a3184468 | 414 | void |
1fab8e81 | 415 | fatal (string, arg1, arg2, arg3) |
bd1a74b1 | 416 | char *string, *arg1, *arg2, *arg3; |
4e81a331 | 417 | { |
626e18ea | 418 | fprintf (stderr, "collect2: "); |
1fab8e81 | 419 | fprintf (stderr, string, arg1, arg2, arg3); |
4e81a331 | 420 | fprintf (stderr, "\n"); |
a3184468 | 421 | collect_exit (1); |
4e81a331 RS |
422 | } |
423 | ||
424 | /* Write error message. */ | |
425 | ||
a3184468 | 426 | void |
1fab8e81 | 427 | error (string, arg1, arg2, arg3, arg4) |
bd1a74b1 | 428 | char *string, *arg1, *arg2, *arg3, *arg4; |
4e81a331 | 429 | { |
626e18ea | 430 | fprintf (stderr, "collect2: "); |
1fab8e81 | 431 | fprintf (stderr, string, arg1, arg2, arg3, arg4); |
4e81a331 | 432 | fprintf (stderr, "\n"); |
4e81a331 RS |
433 | } |
434 | ||
4e81a331 RS |
435 | /* In case obstack is linked in, and abort is defined to fancy_abort, |
436 | provide a default entry. */ | |
437 | ||
438 | void | |
439 | fancy_abort () | |
440 | { | |
441 | fatal ("internal error"); | |
442 | } | |
443 | ||
444 | \f | |
445 | static void | |
446 | handler (signo) | |
447 | int signo; | |
448 | { | |
b31a1e3f | 449 | if (c_file != 0 && c_file[0]) |
4e81a331 RS |
450 | maybe_unlink (c_file); |
451 | ||
b31a1e3f | 452 | if (o_file != 0 && o_file[0]) |
4e81a331 RS |
453 | maybe_unlink (o_file); |
454 | ||
a3184468 JM |
455 | if (ldout != 0 && ldout[0]) |
456 | maybe_unlink (ldout); | |
457 | ||
4e81a331 | 458 | signal (signo, SIG_DFL); |
4e81a331 RS |
459 | kill (getpid (), signo); |
460 | } | |
461 | ||
462 | \f | |
a3184468 | 463 | char * |
4e81a331 | 464 | xcalloc (size1, size2) |
ed5b9462 | 465 | int size1, size2; |
4e81a331 | 466 | { |
a3184468 | 467 | char *ptr = (char *) calloc (size1, size2); |
4e81a331 RS |
468 | if (ptr) |
469 | return ptr; | |
470 | ||
1fab8e81 | 471 | fatal ("out of memory"); |
a3184468 | 472 | return (char *)0; |
4e81a331 RS |
473 | } |
474 | ||
a3184468 | 475 | char * |
4e81a331 | 476 | xmalloc (size) |
a3184468 | 477 | unsigned size; |
4e81a331 | 478 | { |
a3184468 | 479 | char *ptr = (char *) malloc (size); |
4e81a331 RS |
480 | if (ptr) |
481 | return ptr; | |
482 | ||
1fab8e81 | 483 | fatal ("out of memory"); |
a3184468 JM |
484 | return (char *)0; |
485 | } | |
486 | ||
487 | char * | |
488 | xrealloc (ptr, size) | |
489 | char *ptr; | |
490 | unsigned size; | |
491 | { | |
492 | register char *value = (char *) realloc (ptr, size); | |
493 | if (value == 0) | |
494 | fatal ("virtual memory exhausted"); | |
495 | return value; | |
496 | } | |
497 | ||
498 | int | |
499 | file_exists (name) | |
500 | char *name; | |
501 | { | |
502 | return access (name, R_OK) == 0; | |
4e81a331 RS |
503 | } |
504 | ||
ed5b9462 RS |
505 | /* Make a copy of a string INPUT with size SIZE. */ |
506 | ||
507 | char * | |
508 | savestring (input, size) | |
509 | char *input; | |
510 | int size; | |
511 | { | |
512 | char *output = (char *) xmalloc (size + 1); | |
1fab8e81 RS |
513 | bcopy (input, output, size); |
514 | output[size] = 0; | |
ed5b9462 RS |
515 | return output; |
516 | } | |
517 | \f | |
a3184468 JM |
518 | void |
519 | dump_file (name) | |
520 | char *name; | |
521 | { | |
522 | FILE *stream = fopen (name, "r"); | |
523 | int no_demangle = !! getenv ("COLLECT_NO_DEMANGLE"); | |
524 | ||
525 | if (stream == 0) | |
526 | return; | |
527 | while (1) | |
528 | { | |
529 | int c; | |
530 | while (c = getc (stream), | |
531 | c != EOF && (isalnum (c) || c == '_' || c == '$' || c == '.')) | |
532 | obstack_1grow (&temporary_obstack, c); | |
533 | if (obstack_object_size (&temporary_obstack) > 0) | |
534 | { | |
535 | char *word, *p, *result; | |
536 | obstack_1grow (&temporary_obstack, '\0'); | |
537 | word = obstack_finish (&temporary_obstack); | |
538 | ||
539 | if (*word == '.') | |
540 | ++word, putc ('.', stderr); | |
541 | p = word; | |
542 | if (*p == '_' && prepends_underscore) | |
543 | ++p; | |
544 | ||
545 | if (no_demangle) | |
546 | result = 0; | |
547 | else | |
548 | result = cplus_demangle (p, DMGL_PARAMS | DMGL_ANSI); | |
549 | ||
550 | if (result) | |
551 | { | |
552 | int diff; | |
553 | fputs (result, stderr); | |
554 | ||
555 | diff = strlen (word) - strlen (result); | |
556 | while (diff > 0) | |
557 | --diff, putc (' ', stderr); | |
558 | while (diff < 0 && c == ' ') | |
559 | ++diff, c = getc (stream); | |
560 | ||
561 | free (result); | |
562 | } | |
563 | else | |
564 | fputs (word, stderr); | |
565 | ||
566 | fflush (stderr); | |
567 | obstack_free (&temporary_obstack, temporary_firstobj); | |
568 | } | |
569 | if (c == EOF) | |
570 | break; | |
571 | putc (c, stderr); | |
572 | } | |
573 | } | |
574 | \f | |
ed5b9462 RS |
575 | /* Decide whether the given symbol is: |
576 | a constructor (1), a destructor (2), or neither (0). */ | |
577 | ||
578 | static int | |
579 | is_ctor_dtor (s) | |
580 | char *s; | |
581 | { | |
582 | struct names { char *name; int len; int ret; int two_underscores; }; | |
583 | ||
584 | register struct names *p; | |
585 | register int ch; | |
586 | register char *orig_s = s; | |
587 | ||
588 | static struct names special[] = { | |
589 | #ifdef NO_DOLLAR_IN_LABEL | |
7cbfceab | 590 | #ifdef NO_DOT_IN_LABEL |
c52d2678 RS |
591 | { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 }, |
592 | { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 }, | |
7cbfceab | 593 | #else |
ed5b9462 RS |
594 | { "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 }, |
595 | { "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 }, | |
7cbfceab | 596 | #endif |
ed5b9462 RS |
597 | #else |
598 | { "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 }, | |
5555d6d1 | 599 | { "GLOBAL_$D$", sizeof ("GLOBAL_$D$")-1, 2, 0 }, |
ed5b9462 | 600 | #endif |
68d69835 JM |
601 | { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 }, |
602 | { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 }, | |
c1af0346 RS |
603 | #ifdef CFRONT_LOSSAGE /* Don't collect cfront initialization functions. |
604 | cfront has its own linker procedure to collect them; | |
605 | if collect2 gets them too, they get collected twice | |
606 | when the cfront procedure is run and the compiler used | |
607 | for linking happens to be GCC. */ | |
ed5b9462 RS |
608 | { "sti__", sizeof ("sti__")-1, 1, 1 }, |
609 | { "std__", sizeof ("std__")-1, 2, 1 }, | |
7a646ee5 | 610 | #endif /* CFRONT_LOSSAGE */ |
ed5b9462 RS |
611 | { NULL, 0, 0, 0 } |
612 | }; | |
613 | ||
614 | while ((ch = *s) == '_') | |
615 | ++s; | |
616 | ||
617 | if (s == orig_s) | |
618 | return 0; | |
619 | ||
620 | for (p = &special[0]; p->len > 0; p++) | |
621 | { | |
622 | if (ch == p->name[0] | |
623 | && (!p->two_underscores || ((s - orig_s) >= 2)) | |
624 | && strncmp(s, p->name, p->len) == 0) | |
625 | { | |
626 | return p->ret; | |
627 | } | |
628 | } | |
629 | return 0; | |
630 | } | |
631 | ||
4e81a331 RS |
632 | \f |
633 | /* Compute a string to use as the base of all temporary file names. | |
634 | It is substituted for %g. */ | |
635 | ||
636 | static void | |
ed5b9462 | 637 | choose_temp_base () |
4e81a331 RS |
638 | { |
639 | char *base = getenv ("TMPDIR"); | |
640 | int len; | |
641 | ||
642 | if (base == (char *)0) | |
643 | { | |
644 | #ifdef P_tmpdir | |
645 | if (access (P_tmpdir, R_OK | W_OK) == 0) | |
646 | base = P_tmpdir; | |
647 | #endif | |
648 | if (base == (char *)0) | |
649 | { | |
650 | if (access ("/usr/tmp", R_OK | W_OK) == 0) | |
651 | base = "/usr/tmp/"; | |
652 | else | |
653 | base = "/tmp/"; | |
654 | } | |
655 | } | |
656 | ||
657 | len = strlen (base); | |
aee42e27 | 658 | temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1); |
4e81a331 RS |
659 | strcpy (temp_filename, base); |
660 | if (len > 0 && temp_filename[len-1] != '/') | |
661 | temp_filename[len++] = '/'; | |
662 | strcpy (temp_filename + len, "ccXXXXXX"); | |
663 | ||
664 | mktemp (temp_filename); | |
665 | temp_filename_length = strlen (temp_filename); | |
666 | } | |
bb59f9a6 | 667 | \f |
45840c57 RK |
668 | /* Routine to add variables to the environment. */ |
669 | ||
670 | #ifndef HAVE_PUTENV | |
671 | ||
4d1a011f | 672 | int |
45840c57 RK |
673 | putenv (str) |
674 | char *str; | |
675 | { | |
676 | #ifndef VMS /* nor about VMS */ | |
677 | ||
678 | extern char **environ; | |
679 | char **old_environ = environ; | |
680 | char **envp; | |
681 | int num_envs = 0; | |
682 | int name_len = 1; | |
45840c57 RK |
683 | char *p = str; |
684 | int ch; | |
685 | ||
686 | while ((ch = *p++) != '\0' && ch != '=') | |
687 | name_len++; | |
688 | ||
689 | if (!ch) | |
690 | abort (); | |
691 | ||
692 | /* Search for replacing an existing environment variable, and | |
693 | count the number of total environment variables. */ | |
694 | for (envp = old_environ; *envp; envp++) | |
695 | { | |
696 | num_envs++; | |
697 | if (!strncmp (str, *envp, name_len)) | |
698 | { | |
699 | *envp = str; | |
4d1a011f | 700 | return 0; |
45840c57 RK |
701 | } |
702 | } | |
703 | ||
704 | /* Add a new environment variable */ | |
705 | environ = (char **) xmalloc (sizeof (char *) * (num_envs+2)); | |
706 | *environ = str; | |
4c9a05bc RK |
707 | bcopy ((char *) old_environ, (char *) (environ + 1), |
708 | sizeof (char *) * (num_envs+1)); | |
709 | ||
4d1a011f | 710 | return 0; |
45840c57 RK |
711 | #endif /* VMS */ |
712 | } | |
713 | ||
714 | #endif /* HAVE_PUTENV */ | |
715 | \f | |
bb59f9a6 RS |
716 | /* By default, colon separates directories in a path. */ |
717 | #ifndef PATH_SEPARATOR | |
718 | #define PATH_SEPARATOR ':' | |
719 | #endif | |
720 | ||
bb59f9a6 RS |
721 | /* We maintain two prefix lists: one from COMPILER_PATH environment variable |
722 | and one from the PATH variable. */ | |
723 | ||
724 | static struct path_prefix cpath, path; | |
725 | ||
726 | #ifdef CROSS_COMPILE | |
727 | /* This is the name of the target machine. We use it to form the name | |
728 | of the files to execute. */ | |
729 | ||
730 | static char *target_machine = TARGET_MACHINE; | |
731 | #endif | |
720653a3 | 732 | |
45840c57 | 733 | /* Names under which we were executed. Never return one of those files in our |
720653a3 RK |
734 | searches. */ |
735 | ||
7223feb0 | 736 | static struct path_prefix our_file_names; |
bb59f9a6 | 737 | \f |
7223feb0 DE |
738 | /* Determine if STRING is in PPREFIX. |
739 | ||
740 | This utility is currently only used to look up file names. Prefix lists | |
741 | record directory names. This matters to us because the latter has a | |
742 | trailing slash, so I've added a flag to handle both. */ | |
743 | ||
744 | static int | |
745 | is_in_prefix_list (pprefix, string, filep) | |
746 | struct path_prefix *pprefix; | |
747 | char *string; | |
748 | int filep; | |
749 | { | |
750 | struct prefix_list *pl; | |
751 | ||
752 | if (filep) | |
753 | { | |
754 | int len = strlen (string); | |
755 | ||
756 | for (pl = pprefix->plist; pl; pl = pl->next) | |
757 | { | |
758 | if (strncmp (pl->prefix, string, len) == 0 | |
759 | && strcmp (pl->prefix + len, "/") == 0) | |
760 | return 1; | |
761 | } | |
762 | } | |
763 | else | |
764 | { | |
765 | for (pl = pprefix->plist; pl; pl = pl->next) | |
766 | { | |
767 | if (strcmp (pl->prefix, string) == 0) | |
768 | return 1; | |
769 | } | |
770 | } | |
771 | ||
772 | return 0; | |
773 | } | |
774 | ||
bb59f9a6 RS |
775 | /* Search for NAME using prefix list PPREFIX. We only look for executable |
776 | files. | |
777 | ||
778 | Return 0 if not found, otherwise return its name, allocated with malloc. */ | |
779 | ||
780 | static char * | |
781 | find_a_file (pprefix, name) | |
782 | struct path_prefix *pprefix; | |
783 | char *name; | |
784 | { | |
785 | char *temp; | |
786 | struct prefix_list *pl; | |
787 | int len = pprefix->max_len + strlen (name) + 1; | |
788 | ||
789 | #ifdef EXECUTABLE_SUFFIX | |
790 | len += strlen (EXECUTABLE_SUFFIX); | |
791 | #endif | |
792 | ||
793 | temp = xmalloc (len); | |
794 | ||
795 | /* Determine the filename to execute (special case for absolute paths). */ | |
796 | ||
797 | if (*name == '/') | |
798 | { | |
e8fda1f9 | 799 | if (access (name, X_OK) == 0) |
bb59f9a6 RS |
800 | { |
801 | strcpy (temp, name); | |
802 | return temp; | |
803 | } | |
804 | } | |
805 | else | |
806 | for (pl = pprefix->plist; pl; pl = pl->next) | |
807 | { | |
808 | strcpy (temp, pl->prefix); | |
809 | strcat (temp, name); | |
7223feb0 | 810 | if (! is_in_prefix_list (&our_file_names, temp, 1) |
aee3a549 RK |
811 | /* This is a kludge, but there seems no way around it. */ |
812 | && strcmp (temp, "./ld") != 0 | |
45840c57 | 813 | && access (temp, X_OK) == 0) |
bb59f9a6 RS |
814 | return temp; |
815 | ||
816 | #ifdef EXECUTABLE_SUFFIX | |
817 | /* Some systems have a suffix for executable files. | |
818 | So try appending that. */ | |
819 | strcat (temp, EXECUTABLE_SUFFIX); | |
7223feb0 | 820 | if (! is_in_prefix_list (&our_file_names, temp, 1) |
45840c57 | 821 | && access (temp, X_OK) == 0) |
bb59f9a6 RS |
822 | return temp; |
823 | #endif | |
824 | } | |
825 | ||
826 | free (temp); | |
827 | return 0; | |
828 | } | |
829 | ||
830 | /* Add an entry for PREFIX to prefix list PPREFIX. */ | |
831 | ||
832 | static void | |
833 | add_prefix (pprefix, prefix) | |
834 | struct path_prefix *pprefix; | |
835 | char *prefix; | |
836 | { | |
837 | struct prefix_list *pl, **prev; | |
838 | int len; | |
839 | ||
840 | if (pprefix->plist) | |
841 | { | |
842 | for (pl = pprefix->plist; pl->next; pl = pl->next) | |
843 | ; | |
844 | prev = &pl->next; | |
845 | } | |
846 | else | |
847 | prev = &pprefix->plist; | |
848 | ||
849 | /* Keep track of the longest prefix */ | |
850 | ||
851 | len = strlen (prefix); | |
852 | if (len > pprefix->max_len) | |
853 | pprefix->max_len = len; | |
854 | ||
855 | pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list)); | |
856 | pl->prefix = savestring (prefix, len); | |
857 | ||
858 | if (*prev) | |
859 | pl->next = *prev; | |
860 | else | |
861 | pl->next = (struct prefix_list *) 0; | |
862 | *prev = pl; | |
863 | } | |
864 | \f | |
865 | /* Take the value of the environment variable ENV, break it into a path, and | |
866 | add of the entries to PPREFIX. */ | |
867 | ||
868 | static void | |
869 | prefix_from_env (env, pprefix) | |
870 | char *env; | |
871 | struct path_prefix *pprefix; | |
872 | { | |
873 | char *p = getenv (env); | |
874 | ||
875 | if (p) | |
cbbbd917 JM |
876 | prefix_from_string (p, pprefix); |
877 | } | |
bb59f9a6 | 878 | |
cbbbd917 JM |
879 | static void |
880 | prefix_from_string (p, pprefix) | |
881 | char *p; | |
882 | struct path_prefix *pprefix; | |
883 | { | |
884 | char *startp, *endp; | |
885 | char *nstore = (char *) xmalloc (strlen (p) + 3); | |
886 | ||
887 | startp = endp = p; | |
888 | while (1) | |
889 | { | |
890 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
bb59f9a6 | 891 | { |
cbbbd917 JM |
892 | strncpy (nstore, startp, endp-startp); |
893 | if (endp == startp) | |
bb59f9a6 | 894 | { |
cbbbd917 JM |
895 | strcpy (nstore, "./"); |
896 | } | |
897 | else if (endp[-1] != '/') | |
898 | { | |
899 | nstore[endp-startp] = '/'; | |
900 | nstore[endp-startp+1] = 0; | |
bb59f9a6 RS |
901 | } |
902 | else | |
cbbbd917 JM |
903 | nstore[endp-startp] = 0; |
904 | ||
905 | add_prefix (pprefix, nstore); | |
906 | if (*endp == 0) | |
907 | break; | |
908 | endp = startp = endp + 1; | |
bb59f9a6 | 909 | } |
cbbbd917 JM |
910 | else |
911 | endp++; | |
bb59f9a6 RS |
912 | } |
913 | } | |
4e81a331 RS |
914 | \f |
915 | /* Main program. */ | |
916 | ||
917 | int | |
918 | main (argc, argv) | |
919 | int argc; | |
920 | char *argv[]; | |
921 | { | |
bb59f9a6 RS |
922 | char *ld_suffix = "ld"; |
923 | char *full_ld_suffix = ld_suffix; | |
924 | char *real_ld_suffix = "real-ld"; | |
e8fda1f9 | 925 | char *full_real_ld_suffix = real_ld_suffix; |
a3184468 | 926 | char *collect_ld_suffix = "collect-ld"; |
bb59f9a6 RS |
927 | char *nm_suffix = "nm"; |
928 | char *full_nm_suffix = nm_suffix; | |
929 | char *gnm_suffix = "gnm"; | |
930 | char *full_gnm_suffix = gnm_suffix; | |
68d69835 JM |
931 | #ifdef LDD_SUFFIX |
932 | char *ldd_suffix = LDD_SUFFIX; | |
933 | char *full_ldd_suffix = ldd_suffix; | |
934 | #endif | |
bb59f9a6 RS |
935 | char *strip_suffix = "strip"; |
936 | char *full_strip_suffix = strip_suffix; | |
937 | char *gstrip_suffix = "gstrip"; | |
938 | char *full_gstrip_suffix = gstrip_suffix; | |
4e81a331 | 939 | char *arg; |
cbbbd917 | 940 | FILE *outf, *exportf; |
4e81a331 | 941 | char *ld_file_name; |
588e387f | 942 | char *collect_name; |
7223feb0 | 943 | char *collect_names; |
4e81a331 | 944 | char *p; |
ed5b9462 RS |
945 | char **c_argv; |
946 | char **c_ptr; | |
cbbbd917 | 947 | char **ld1_argv = (char **) xcalloc (sizeof (char *), argc+3); |
4e81a331 | 948 | char **ld1 = ld1_argv; |
cbbbd917 | 949 | char **ld2_argv = (char **) xcalloc (sizeof (char *), argc+6); |
4e81a331 | 950 | char **ld2 = ld2_argv; |
9f21696b JM |
951 | char **object_lst = (char **) xcalloc (sizeof (char *), argc); |
952 | char **object = object_lst; | |
4e81a331 | 953 | int first_file; |
ed5b9462 | 954 | int num_c_args = argc+7; |
4e81a331 RS |
955 | |
956 | #ifdef DEBUG | |
957 | debug = 1; | |
958 | vflag = 1; | |
959 | #endif | |
960 | ||
0cdd3ddd RS |
961 | output_file = "a.out"; |
962 | ||
a3184468 JM |
963 | obstack_begin (&temporary_obstack, 0); |
964 | obstack_begin (&permanent_obstack, 0); | |
965 | temporary_firstobj = (char *) obstack_alloc (&temporary_obstack, 0); | |
966 | current_demangling_style = gnu_demangling; | |
967 | ||
45840c57 | 968 | /* We must check that we do not call ourselves in an infinite |
588e387f DE |
969 | recursion loop. We append the name used for us to the COLLECT_NAMES |
970 | environment variable. | |
45840c57 | 971 | |
7223feb0 DE |
972 | In practice, collect will rarely invoke itself. This can happen now |
973 | that we are no longer called gld. A perfect example is when running | |
974 | gcc in a build directory that has been installed. When looking for | |
975 | ld's, we'll find our installed version and believe that's the real ld. */ | |
45840c57 | 976 | |
588e387f DE |
977 | /* We must also append COLLECT_NAME to COLLECT_NAMES to watch for the |
978 | previous version of collect (the one that used COLLECT_NAME and only | |
979 | handled two levels of recursion). If we don't we may mutually recurse | |
980 | forever. This can happen (I think) when bootstrapping the old version | |
981 | and a new one is installed (rare, but we should handle it). | |
982 | ??? Hopefully references to COLLECT_NAME can be removed at some point. */ | |
983 | ||
984 | collect_name = (char *) getenv ("COLLECT_NAME"); | |
7223feb0 | 985 | collect_names = (char *) getenv ("COLLECT_NAMES"); |
45840c57 | 986 | |
7223feb0 | 987 | p = (char *) xmalloc (strlen ("COLLECT_NAMES=") |
588e387f | 988 | + (collect_name ? strlen (collect_name) + 1 : 0) |
7223feb0 DE |
989 | + (collect_names ? strlen (collect_names) + 1 : 0) |
990 | + strlen (argv[0]) + 1); | |
588e387f DE |
991 | strcpy (p, "COLLECT_NAMES="); |
992 | if (collect_name != 0) | |
993 | sprintf (p + strlen (p), "%s%c", collect_name, PATH_SEPARATOR); | |
7223feb0 | 994 | if (collect_names != 0) |
588e387f DE |
995 | sprintf (p + strlen (p), "%s%c", collect_names, PATH_SEPARATOR); |
996 | strcat (p, argv[0]); | |
45840c57 RK |
997 | putenv (p); |
998 | ||
7223feb0 DE |
999 | prefix_from_env ("COLLECT_NAMES", &our_file_names); |
1000 | ||
588e387f DE |
1001 | /* Set environment variable COLLECT_NAME to our name so the previous version |
1002 | of collect won't find us. If it does we'll mutually recurse forever. | |
1003 | This can happen when bootstrapping the new version and an old version is | |
1004 | installed. | |
1005 | ??? Hopefully this bit of code can be removed at some point. */ | |
1006 | ||
1007 | p = xmalloc (strlen ("COLLECT_NAME=") + strlen (argv[0]) + 1); | |
1008 | sprintf (p, "COLLECT_NAME=%s", argv[0]); | |
1009 | putenv (p); | |
1010 | ||
ed5b9462 RS |
1011 | p = (char *) getenv ("COLLECT_GCC_OPTIONS"); |
1012 | if (p) | |
1013 | while (*p) | |
1014 | { | |
1015 | char *q = p; | |
1016 | while (*q && *q != ' ') q++; | |
17704846 | 1017 | if (*p == '-' && p[1] == 'm') |
ed5b9462 RS |
1018 | num_c_args++; |
1019 | ||
1020 | if (*q) q++; | |
1021 | p = q; | |
1022 | } | |
1023 | ||
1024 | c_ptr = c_argv = (char **) xcalloc (sizeof (char *), num_c_args); | |
1025 | ||
4e81a331 RS |
1026 | if (argc < 2) |
1027 | fatal ("no arguments"); | |
1028 | ||
8ab861c7 | 1029 | #ifdef SIGQUIT |
915ee623 JW |
1030 | if (signal (SIGQUIT, SIG_IGN) != SIG_IGN) |
1031 | signal (SIGQUIT, handler); | |
8ab861c7 | 1032 | #endif |
915ee623 JW |
1033 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
1034 | signal (SIGINT, handler); | |
8ab861c7 | 1035 | #ifdef SIGALRM |
915ee623 JW |
1036 | if (signal (SIGALRM, SIG_IGN) != SIG_IGN) |
1037 | signal (SIGALRM, handler); | |
8ab861c7 RK |
1038 | #endif |
1039 | #ifdef SIGHUP | |
915ee623 JW |
1040 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
1041 | signal (SIGHUP, handler); | |
8ab861c7 | 1042 | #endif |
915ee623 JW |
1043 | if (signal (SIGSEGV, SIG_IGN) != SIG_IGN) |
1044 | signal (SIGSEGV, handler); | |
8ab861c7 | 1045 | #ifdef SIGBUS |
915ee623 JW |
1046 | if (signal (SIGBUS, SIG_IGN) != SIG_IGN) |
1047 | signal (SIGBUS, handler); | |
8ab861c7 | 1048 | #endif |
4e81a331 | 1049 | |
bb59f9a6 RS |
1050 | /* Extract COMPILER_PATH and PATH into our prefix list. */ |
1051 | prefix_from_env ("COMPILER_PATH", &cpath); | |
1052 | prefix_from_env ("PATH", &path); | |
4e81a331 | 1053 | |
bb59f9a6 RS |
1054 | #ifdef CROSS_COMPILE |
1055 | /* If we look for a program in the compiler directories, we just use | |
1056 | the short name, since these directories are already system-specific. | |
1057 | But it we look for a took in the system directories, we need to | |
1058 | qualify the program name with the target machine. */ | |
1059 | ||
1060 | full_ld_suffix | |
aee42e27 | 1061 | = xcalloc (strlen (ld_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 1062 | strcpy (full_ld_suffix, target_machine); |
bb59f9a6 | 1063 | strcat (full_ld_suffix, "-"); |
46c74083 | 1064 | strcat (full_ld_suffix, ld_suffix); |
bb59f9a6 RS |
1065 | |
1066 | full_real_ld_suffix | |
aee42e27 | 1067 | = xcalloc (strlen (real_ld_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 1068 | strcpy (full_real_ld_suffix, target_machine); |
bb59f9a6 | 1069 | strcat (full_real_ld_suffix, "-"); |
46c74083 | 1070 | strcat (full_real_ld_suffix, real_ld_suffix); |
bb59f9a6 | 1071 | |
98552524 | 1072 | #if 0 |
bb59f9a6 | 1073 | full_gld_suffix |
aee42e27 | 1074 | = xcalloc (strlen (gld_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 1075 | strcpy (full_gld_suffix, target_machine); |
bb59f9a6 | 1076 | strcat (full_gld_suffix, "-"); |
46c74083 | 1077 | strcat (full_gld_suffix, gld_suffix); |
98552524 | 1078 | #endif |
bb59f9a6 RS |
1079 | |
1080 | full_nm_suffix | |
aee42e27 | 1081 | = xcalloc (strlen (nm_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 1082 | strcpy (full_nm_suffix, target_machine); |
bb59f9a6 | 1083 | strcat (full_nm_suffix, "-"); |
46c74083 | 1084 | strcat (full_nm_suffix, nm_suffix); |
bb59f9a6 RS |
1085 | |
1086 | full_gnm_suffix | |
aee42e27 | 1087 | = xcalloc (strlen (gnm_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 1088 | strcpy (full_gnm_suffix, target_machine); |
bb59f9a6 | 1089 | strcat (full_gnm_suffix, "-"); |
46c74083 | 1090 | strcat (full_gnm_suffix, gnm_suffix); |
bb59f9a6 | 1091 | |
68d69835 JM |
1092 | #ifdef LDD_SUFFIX |
1093 | full_ldd_suffix | |
1094 | = xcalloc (strlen (ldd_suffix) + strlen (target_machine) + 2, 1); | |
1095 | strcpy (full_ldd_suffix, target_machine); | |
1096 | strcat (full_ldd_suffix, "-"); | |
1097 | strcat (full_ldd_suffix, ldd_suffix); | |
1098 | #endif | |
1099 | ||
bb59f9a6 | 1100 | full_strip_suffix |
aee42e27 | 1101 | = xcalloc (strlen (strip_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 1102 | strcpy (full_strip_suffix, target_machine); |
bb59f9a6 | 1103 | strcat (full_strip_suffix, "-"); |
46c74083 | 1104 | strcat (full_strip_suffix, strip_suffix); |
bb59f9a6 RS |
1105 | |
1106 | full_gstrip_suffix | |
aee42e27 | 1107 | = xcalloc (strlen (gstrip_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 1108 | strcpy (full_gstrip_suffix, target_machine); |
bb59f9a6 | 1109 | strcat (full_gstrip_suffix, "-"); |
46c74083 | 1110 | strcat (full_gstrip_suffix, gstrip_suffix); |
bb59f9a6 RS |
1111 | #endif /* CROSS_COMPILE */ |
1112 | ||
1113 | /* Try to discover a valid linker/nm/strip to use. */ | |
1114 | ||
90d326bd JM |
1115 | /* Maybe we know the right file to use (if not cross). */ |
1116 | #ifdef REAL_LD_FILE_NAME | |
1117 | ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME); | |
1118 | if (ld_file_name == 0) | |
1119 | #endif | |
a3184468 JM |
1120 | /* Search the (target-specific) compiler dirs for ld'. */ |
1121 | ld_file_name = find_a_file (&cpath, real_ld_suffix); | |
1122 | /* Likewise for `collect-ld'. */ | |
bb59f9a6 | 1123 | if (ld_file_name == 0) |
a3184468 | 1124 | ld_file_name = find_a_file (&cpath, collect_ld_suffix); |
b3a2ef94 RK |
1125 | /* Search the compiler directories for `ld'. We have protection against |
1126 | recursive calls in find_a_file. */ | |
f820b898 | 1127 | if (ld_file_name == 0) |
b3a2ef94 | 1128 | ld_file_name = find_a_file (&cpath, ld_suffix); |
bb59f9a6 | 1129 | /* Search the ordinary system bin directories |
46c74083 | 1130 | for `ld' (if native linking) or `TARGET-ld' (if cross). */ |
bb59f9a6 RS |
1131 | if (ld_file_name == 0) |
1132 | ld_file_name = find_a_file (&path, full_ld_suffix); | |
1133 | ||
7223feb0 DE |
1134 | /* If we've invoked ourselves, try again with LD_FILE_NAME. */ |
1135 | ||
1136 | if (collect_names != 0) | |
1137 | { | |
1138 | if (ld_file_name != 0) | |
1139 | { | |
1140 | argv[0] = ld_file_name; | |
1141 | execvp (argv[0], argv); | |
1142 | } | |
1143 | fatal ("cannot find `ld'"); | |
1144 | } | |
1145 | ||
90d326bd JM |
1146 | #ifdef REAL_NM_FILE_NAME |
1147 | nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME); | |
1148 | if (nm_file_name == 0) | |
1149 | #endif | |
bb59f9a6 RS |
1150 | nm_file_name = find_a_file (&cpath, gnm_suffix); |
1151 | if (nm_file_name == 0) | |
1152 | nm_file_name = find_a_file (&path, full_gnm_suffix); | |
1153 | if (nm_file_name == 0) | |
1154 | nm_file_name = find_a_file (&cpath, nm_suffix); | |
bb59f9a6 RS |
1155 | if (nm_file_name == 0) |
1156 | nm_file_name = find_a_file (&path, full_nm_suffix); | |
1157 | ||
68d69835 JM |
1158 | #ifdef LDD_SUFFIX |
1159 | ldd_file_name = find_a_file (&cpath, ldd_suffix); | |
1160 | if (ldd_file_name == 0) | |
1161 | ldd_file_name = find_a_file (&path, full_ldd_suffix); | |
1162 | #endif | |
1163 | ||
90d326bd JM |
1164 | #ifdef REAL_STRIP_FILE_NAME |
1165 | strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME); | |
1166 | if (strip_file_name == 0) | |
1167 | #endif | |
bb59f9a6 RS |
1168 | strip_file_name = find_a_file (&cpath, gstrip_suffix); |
1169 | if (strip_file_name == 0) | |
1170 | strip_file_name = find_a_file (&path, full_gstrip_suffix); | |
1171 | if (strip_file_name == 0) | |
1172 | strip_file_name = find_a_file (&cpath, strip_suffix); | |
bb59f9a6 RS |
1173 | if (strip_file_name == 0) |
1174 | strip_file_name = find_a_file (&path, full_strip_suffix); | |
4e81a331 | 1175 | |
a87104d9 | 1176 | /* Determine the full path name of the C compiler to use. */ |
ed5b9462 | 1177 | c_file_name = getenv ("COLLECT_GCC"); |
5365d6ee | 1178 | if (c_file_name == 0) |
4e81a331 | 1179 | { |
bb59f9a6 | 1180 | #ifdef CROSS_COMPILE |
aee42e27 | 1181 | c_file_name = xcalloc (sizeof ("gcc-") + strlen (target_machine) + 1, 1); |
46c74083 RS |
1182 | strcpy (c_file_name, target_machine); |
1183 | strcat (c_file_name, "-gcc"); | |
4e81a331 | 1184 | #else |
bb59f9a6 | 1185 | c_file_name = "gcc"; |
a87104d9 | 1186 | #endif |
a87104d9 MM |
1187 | } |
1188 | ||
bb59f9a6 RS |
1189 | p = find_a_file (&cpath, c_file_name); |
1190 | ||
1191 | /* Here it should be safe to use the system search path since we should have | |
1192 | already qualified the name of the compiler when it is needed. */ | |
1193 | if (p == 0) | |
1194 | p = find_a_file (&path, c_file_name); | |
1195 | ||
1196 | if (p) | |
1197 | c_file_name = p; | |
4e81a331 | 1198 | |
45840c57 | 1199 | *ld1++ = *ld2++ = ld_file_name; |
4e81a331 RS |
1200 | |
1201 | /* Make temp file names. */ | |
1202 | choose_temp_base (); | |
1203 | c_file = xcalloc (temp_filename_length + sizeof (".c"), 1); | |
1204 | o_file = xcalloc (temp_filename_length + sizeof (".o"), 1); | |
cbbbd917 | 1205 | export_file = xmalloc (temp_filename_length + sizeof (".x")); |
a3184468 JM |
1206 | ldout = xmalloc (temp_filename_length + sizeof (".ld")); |
1207 | sprintf (ldout, "%s.ld", temp_filename); | |
4e81a331 RS |
1208 | sprintf (c_file, "%s.c", temp_filename); |
1209 | sprintf (o_file, "%s.o", temp_filename); | |
cbbbd917 | 1210 | sprintf (export_file, "%s.x", temp_filename); |
ed5b9462 | 1211 | *c_ptr++ = c_file_name; |
4e81a331 RS |
1212 | *c_ptr++ = "-c"; |
1213 | *c_ptr++ = "-o"; | |
1214 | *c_ptr++ = o_file; | |
1215 | ||
ed5b9462 RS |
1216 | /* !!! When GCC calls collect2, |
1217 | it does not know whether it is calling collect2 or ld. | |
1218 | So collect2 cannot meaningfully understand any options | |
1219 | except those ld understands. | |
1220 | If you propose to make GCC pass some other option, | |
1221 | just imagine what will happen if ld is really ld!!! */ | |
1222 | ||
4e81a331 | 1223 | /* Parse arguments. Remember output file spec, pass the rest to ld. */ |
ed5b9462 RS |
1224 | /* After the first file, put in the c++ rt0. */ |
1225 | ||
4e81a331 RS |
1226 | first_file = 1; |
1227 | while ((arg = *++argv) != (char *)0) | |
1228 | { | |
1229 | *ld1++ = *ld2++ = arg; | |
1230 | ||
1231 | if (arg[0] == '-') | |
2d5e74ca | 1232 | { |
4e81a331 RS |
1233 | switch (arg[1]) |
1234 | { | |
1235 | case 'd': | |
1236 | if (!strcmp (arg, "-debug")) | |
1237 | { | |
1238 | debug = 1; | |
1239 | vflag = 1; | |
1240 | ld1--; | |
1241 | ld2--; | |
1242 | } | |
1243 | break; | |
1244 | ||
68d69835 JM |
1245 | case 'l': |
1246 | if (first_file) | |
1247 | { | |
1248 | /* place o_file BEFORE this argument! */ | |
1249 | first_file = 0; | |
1250 | ld2--; | |
1251 | *ld2++ = o_file; | |
1252 | *ld2++ = arg; | |
1253 | } | |
1254 | break; | |
1255 | ||
4e81a331 | 1256 | case 'o': |
603b4064 RK |
1257 | if (arg[2] == '\0') |
1258 | output_file = *ld1++ = *ld2++ = *++argv; | |
1259 | else | |
1260 | output_file = &arg[2]; | |
4e81a331 RS |
1261 | break; |
1262 | ||
1263 | case 'r': | |
1264 | if (arg[2] == '\0') | |
1265 | rflag = 1; | |
1266 | break; | |
1267 | ||
a87104d9 | 1268 | case 's': |
a3184468 | 1269 | if (arg[2] == '\0' && do_collecting) |
a87104d9 MM |
1270 | { |
1271 | /* We must strip after the nm run, otherwise C++ linking | |
1272 | won't work. Thus we strip in the second ld run, or | |
1273 | else with strip if there is no second ld run. */ | |
1274 | strip_flag = 1; | |
1275 | ld1--; | |
1276 | } | |
1277 | break; | |
1278 | ||
4e81a331 RS |
1279 | case 'v': |
1280 | if (arg[2] == '\0') | |
1281 | vflag = 1; | |
1282 | break; | |
1283 | } | |
2d5e74ca | 1284 | } |
9f21696b | 1285 | else if ((p = rindex (arg, '.')) != (char *)0 |
68d69835 | 1286 | && (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0)) |
4e81a331 | 1287 | { |
9f21696b JM |
1288 | if (first_file) |
1289 | { | |
1290 | first_file = 0; | |
603b4064 RK |
1291 | if (p[1] == 'o') |
1292 | *ld2++ = o_file; | |
1293 | else | |
1294 | { | |
1295 | /* place o_file BEFORE this argument! */ | |
1296 | ld2--; | |
1297 | *ld2++ = o_file; | |
1298 | *ld2++ = arg; | |
1299 | } | |
9f21696b JM |
1300 | } |
1301 | if (p[1] == 'o') | |
1302 | *object++ = arg; | |
4e81a331 RS |
1303 | } |
1304 | } | |
1305 | ||
ed5b9462 RS |
1306 | /* Get any options that the upper GCC wants to pass to the sub-GCC. */ |
1307 | p = (char *) getenv ("COLLECT_GCC_OPTIONS"); | |
1308 | if (p) | |
1309 | while (*p) | |
1310 | { | |
1311 | char *q = p; | |
1312 | while (*q && *q != ' ') q++; | |
1313 | if (*p == '-' && (p[1] == 'm' || p[1] == 'f')) | |
1314 | *c_ptr++ = savestring (p, q - p); | |
68d69835 JM |
1315 | if (strncmp (p, "-shared", sizeof ("shared") - 1) == 0) |
1316 | shared_obj = 1; | |
ed5b9462 RS |
1317 | |
1318 | if (*q) q++; | |
1319 | p = q; | |
1320 | } | |
1321 | ||
cbbbd917 JM |
1322 | #ifdef COLLECT_EXPORT_LIST |
1323 | /* The AIX linker will discard static constructors in object files if | |
1324 | nothing else in the file is referenced, so look at them first. */ | |
1325 | while (object_lst < object) | |
1326 | scan_prog_file (*object_lst++, PASS_OBJ); | |
1327 | ||
1328 | { | |
1329 | char *buf = alloca (strlen (export_file) + 5); | |
1330 | sprintf (buf, "-bE:%s", export_file); | |
1331 | *ld1++ = buf; | |
1332 | *ld2++ = buf; | |
1333 | exportf = fopen (export_file, "w"); | |
1334 | if (exportf == (FILE *)0) | |
1335 | fatal_perror ("%s", export_file); | |
1336 | write_export_file (exportf); | |
1337 | if (fclose (exportf)) | |
1338 | fatal_perror ("closing %s", export_file); | |
1339 | } | |
1340 | #endif | |
1341 | ||
4e81a331 | 1342 | *c_ptr++ = c_file; |
603b4064 | 1343 | *object = *c_ptr = *ld1 = (char *)0; |
4e81a331 RS |
1344 | |
1345 | if (vflag) | |
1346 | { | |
ed5b9462 | 1347 | fprintf (stderr, "collect2 version %s", version_string); |
4e81a331 RS |
1348 | #ifdef TARGET_VERSION |
1349 | TARGET_VERSION; | |
1350 | #endif | |
1351 | fprintf (stderr, "\n"); | |
1352 | } | |
1353 | ||
1354 | if (debug) | |
1355 | { | |
ed5b9462 | 1356 | char *ptr; |
a1549b15 RS |
1357 | fprintf (stderr, "ld_file_name = %s\n", |
1358 | (ld_file_name ? ld_file_name : "not found")); | |
1359 | fprintf (stderr, "c_file_name = %s\n", | |
1360 | (c_file_name ? c_file_name : "not found")); | |
1361 | fprintf (stderr, "nm_file_name = %s\n", | |
1362 | (nm_file_name ? nm_file_name : "not found")); | |
68d69835 JM |
1363 | #ifdef LDD_SUFFIX |
1364 | fprintf (stderr, "ldd_file_name = %s\n", | |
1365 | (ldd_file_name ? ldd_file_name : "not found")); | |
1366 | #endif | |
a1549b15 RS |
1367 | fprintf (stderr, "strip_file_name = %s\n", |
1368 | (strip_file_name ? strip_file_name : "not found")); | |
1369 | fprintf (stderr, "c_file = %s\n", | |
1370 | (c_file ? c_file : "not found")); | |
1371 | fprintf (stderr, "o_file = %s\n", | |
1372 | (o_file ? o_file : "not found")); | |
ed5b9462 | 1373 | |
7223feb0 DE |
1374 | ptr = getenv ("COLLECT_NAMES"); |
1375 | if (ptr) | |
1376 | fprintf (stderr, "COLLECT_NAMES = %s\n", ptr); | |
1377 | ||
ed5b9462 RS |
1378 | ptr = getenv ("COLLECT_GCC_OPTIONS"); |
1379 | if (ptr) | |
1380 | fprintf (stderr, "COLLECT_GCC_OPTIONS = %s\n", ptr); | |
1381 | ||
1382 | ptr = getenv ("COLLECT_GCC"); | |
1383 | if (ptr) | |
1384 | fprintf (stderr, "COLLECT_GCC = %s\n", ptr); | |
1385 | ||
1386 | ptr = getenv ("COMPILER_PATH"); | |
1387 | if (ptr) | |
1388 | fprintf (stderr, "COMPILER_PATH = %s\n", ptr); | |
1389 | ||
1390 | ptr = getenv ("LIBRARY_PATH"); | |
1391 | if (ptr) | |
1392 | fprintf (stderr, "LIBRARY_PATH = %s\n", ptr); | |
1393 | ||
1394 | fprintf (stderr, "\n"); | |
4e81a331 RS |
1395 | } |
1396 | ||
a3184468 | 1397 | /* Load the program, searching all libraries. */ |
4e81a331 | 1398 | |
a3184468 JM |
1399 | collect_execute ("ld", ld1_argv, ldout); |
1400 | do_wait ("ld"); | |
1401 | dump_file (ldout); | |
1402 | unlink (ldout); | |
4e81a331 | 1403 | |
a3184468 JM |
1404 | /* If -r or they'll be run via some other method, don't build the |
1405 | constructor or destructor list, just return now. */ | |
1406 | if (rflag || ! do_collecting) | |
4e81a331 RS |
1407 | return 0; |
1408 | ||
a3184468 JM |
1409 | /* Examine the namelist with nm and search it for static constructors |
1410 | and destructors to call. | |
1411 | Write the constructor and destructor tables to a .s file and reload. */ | |
1412 | ||
0cdd3ddd | 1413 | scan_prog_file (output_file, PASS_FIRST); |
4e81a331 | 1414 | |
68d69835 JM |
1415 | #ifdef SCAN_LIBRARIES |
1416 | scan_libraries (output_file); | |
1417 | #endif | |
1418 | ||
4e81a331 RS |
1419 | if (debug) |
1420 | { | |
1421 | fprintf (stderr, "%d constructor(s) found\n", constructors.number); | |
1422 | fprintf (stderr, "%d destructor(s) found\n", destructors.number); | |
1423 | } | |
1424 | ||
68d69835 JM |
1425 | if (constructors.number == 0 && destructors.number == 0 |
1426 | #ifdef LDD_SUFFIX | |
1427 | /* If we will be running these functions ourselves, we want to emit | |
1428 | stubs into the shared library so that we don't have to relink | |
1429 | dependent programs when we add static objects. */ | |
1430 | && ! shared_obj | |
1431 | #endif | |
1432 | ) | |
a87104d9 MM |
1433 | { |
1434 | /* Strip now if it was requested on the command line. */ | |
1435 | if (strip_flag) | |
1436 | { | |
1437 | char **strip_argv = (char **) xcalloc (sizeof (char *), 3); | |
aee3a549 | 1438 | strip_argv[0] = strip_file_name; |
0cdd3ddd | 1439 | strip_argv[1] = output_file; |
a87104d9 | 1440 | strip_argv[2] = (char *) 0; |
aee3a549 | 1441 | fork_execute ("strip", strip_argv); |
a87104d9 | 1442 | } |
eccd41bb RK |
1443 | |
1444 | #ifdef COLLECT_EXPORT_LIST | |
1445 | maybe_unlink (export_file); | |
1446 | #endif | |
a87104d9 MM |
1447 | return 0; |
1448 | } | |
4e81a331 | 1449 | |
eeed1288 | 1450 | maybe_unlink(output_file); |
4e81a331 RS |
1451 | outf = fopen (c_file, "w"); |
1452 | if (outf == (FILE *)0) | |
1fab8e81 | 1453 | fatal_perror ("%s", c_file); |
4e81a331 RS |
1454 | |
1455 | write_c_file (outf, c_file); | |
1456 | ||
1457 | if (fclose (outf)) | |
1fab8e81 | 1458 | fatal_perror ("closing %s", c_file); |
4e81a331 | 1459 | |
603b4064 RK |
1460 | /* Tell the linker that we have initializer and finalizer functions. */ |
1461 | #ifdef LD_INIT_SWITCH | |
1462 | *ld2++ = LD_INIT_SWITCH; | |
1463 | *ld2++ = initname; | |
1464 | *ld2++ = LD_FINI_SWITCH; | |
1465 | *ld2++ = fininame; | |
1466 | #endif | |
1467 | *ld2 = (char*)0; | |
1468 | ||
cbbbd917 JM |
1469 | #ifdef COLLECT_EXPORT_LIST |
1470 | if (shared_obj) | |
1471 | { | |
1472 | add_to_list (&exports, initname); | |
1473 | add_to_list (&exports, fininame); | |
603b4064 RK |
1474 | add_to_list (&exports, "_GLOBAL__DI"); |
1475 | add_to_list (&exports, "_GLOBAL__DD"); | |
cbbbd917 JM |
1476 | exportf = fopen (export_file, "w"); |
1477 | if (exportf == (FILE *)0) | |
1478 | fatal_perror ("%s", export_file); | |
1479 | write_export_file (exportf); | |
1480 | if (fclose (exportf)) | |
1481 | fatal_perror ("closing %s", export_file); | |
1482 | } | |
1483 | #endif | |
1484 | ||
4e81a331 RS |
1485 | if (debug) |
1486 | { | |
0cdd3ddd RS |
1487 | fprintf (stderr, "\n========== output_file = %s, c_file = %s\n", |
1488 | output_file, c_file); | |
4e81a331 RS |
1489 | write_c_file (stderr, "stderr"); |
1490 | fprintf (stderr, "========== end of c_file\n\n"); | |
cbbbd917 JM |
1491 | #ifdef COLLECT_EXPORT_LIST |
1492 | fprintf (stderr, "\n========== export_file = %s\n", export_file); | |
1493 | write_export_file (stderr); | |
1494 | fprintf (stderr, "========== end of export_file\n\n"); | |
1495 | #endif | |
4e81a331 RS |
1496 | } |
1497 | ||
1498 | /* Assemble the constructor and destructor tables. | |
1499 | Link the tables in with the rest of the program. */ | |
1500 | ||
aee3a549 RK |
1501 | fork_execute ("gcc", c_argv); |
1502 | fork_execute ("ld", ld2_argv); | |
4e81a331 RS |
1503 | |
1504 | /* Let scan_prog_file do any final mods (OSF/rose needs this for | |
1505 | constructors/destructors in shared libraries. */ | |
0cdd3ddd | 1506 | scan_prog_file (output_file, PASS_SECOND); |
4e81a331 RS |
1507 | |
1508 | maybe_unlink (c_file); | |
1509 | maybe_unlink (o_file); | |
cbbbd917 | 1510 | maybe_unlink (export_file); |
4e81a331 RS |
1511 | return 0; |
1512 | } | |
1513 | ||
1514 | \f | |
1515 | /* Wait for a process to finish, and exit if a non-zero status is found. */ | |
1516 | ||
a3184468 JM |
1517 | int |
1518 | collect_wait (prog) | |
4e81a331 RS |
1519 | char *prog; |
1520 | { | |
1521 | int status; | |
1522 | ||
1523 | wait (&status); | |
1524 | if (status) | |
1525 | { | |
0b90f9c2 | 1526 | if (WIFSIGNALED (status)) |
4e81a331 | 1527 | { |
0b90f9c2 | 1528 | int sig = WTERMSIG (status); |
ed5b9462 RS |
1529 | #ifdef NO_SYS_SIGLIST |
1530 | error ("%s terminated with signal %d %s", | |
1531 | prog, | |
1532 | sig, | |
1533 | (status & 0200) ? ", core dumped" : ""); | |
1534 | #else | |
4e81a331 RS |
1535 | error ("%s terminated with signal %d [%s]%s", |
1536 | prog, | |
1537 | sig, | |
1538 | sys_siglist[sig], | |
1539 | (status & 0200) ? ", core dumped" : ""); | |
ed5b9462 | 1540 | #endif |
4e81a331 | 1541 | |
a3184468 | 1542 | collect_exit (127); |
4e81a331 RS |
1543 | } |
1544 | ||
0b90f9c2 | 1545 | if (WIFEXITED (status)) |
a3184468 JM |
1546 | return WEXITSTATUS (status); |
1547 | } | |
1548 | return 0; | |
1549 | } | |
1550 | ||
1551 | static void | |
1552 | do_wait (prog) | |
1553 | char *prog; | |
1554 | { | |
1555 | int ret = collect_wait (prog); | |
1556 | if (ret != 0) | |
1557 | { | |
1558 | error ("%s returned %d exit status", prog, ret); | |
1559 | collect_exit (ret); | |
4e81a331 RS |
1560 | } |
1561 | } | |
1562 | ||
1563 | \f | |
1564 | /* Fork and execute a program, and wait for the reply. */ | |
1565 | ||
a3184468 JM |
1566 | void |
1567 | collect_execute (prog, argv, redir) | |
4e81a331 RS |
1568 | char *prog; |
1569 | char **argv; | |
a3184468 | 1570 | char *redir; |
4e81a331 RS |
1571 | { |
1572 | int pid; | |
4e81a331 RS |
1573 | |
1574 | if (vflag || debug) | |
1575 | { | |
1576 | char **p_argv; | |
1577 | char *str; | |
1578 | ||
aee3a549 RK |
1579 | if (argv[0]) |
1580 | fprintf (stderr, "%s", argv[0]); | |
bb59f9a6 | 1581 | else |
aee3a549 | 1582 | fprintf (stderr, "[cannot find %s]", prog); |
bb59f9a6 | 1583 | |
4e81a331 RS |
1584 | for (p_argv = &argv[1]; (str = *p_argv) != (char *)0; p_argv++) |
1585 | fprintf (stderr, " %s", str); | |
1586 | ||
1587 | fprintf (stderr, "\n"); | |
1588 | } | |
1589 | ||
1590 | fflush (stdout); | |
1591 | fflush (stderr); | |
1592 | ||
bb59f9a6 RS |
1593 | /* If we can't find a program we need, complain error. Do this here |
1594 | since we might not end up needing something that we couldn't find. */ | |
1595 | ||
aee3a549 RK |
1596 | if (argv[0] == 0) |
1597 | fatal ("cannot find `%s'", prog); | |
bb59f9a6 | 1598 | |
4e81a331 RS |
1599 | pid = vfork (); |
1600 | if (pid == -1) | |
cf0c751a JW |
1601 | { |
1602 | #ifdef vfork | |
1603 | fatal_perror ("fork"); | |
1604 | #else | |
1605 | fatal_perror ("vfork"); | |
1606 | #endif | |
1607 | } | |
4e81a331 RS |
1608 | |
1609 | if (pid == 0) /* child context */ | |
1610 | { | |
a3184468 JM |
1611 | if (redir) |
1612 | { | |
1613 | unlink (redir); | |
1614 | if (freopen (redir, "a", stdout) == NULL) | |
1615 | fatal_perror ("redirecting stdout"); | |
1616 | if (freopen (redir, "a", stderr) == NULL) | |
1617 | fatal_perror ("redirecting stderr"); | |
1618 | } | |
1619 | ||
aee3a549 | 1620 | execvp (argv[0], argv); |
1fab8e81 | 1621 | fatal_perror ("executing %s", prog); |
4e81a331 | 1622 | } |
a3184468 | 1623 | } |
4e81a331 | 1624 | |
a3184468 JM |
1625 | static void |
1626 | fork_execute (prog, argv) | |
1627 | char *prog; | |
1628 | char **argv; | |
1629 | { | |
1630 | collect_execute (prog, argv, NULL); | |
4e81a331 | 1631 | do_wait (prog); |
4e81a331 | 1632 | } |
4e81a331 RS |
1633 | \f |
1634 | /* Unlink a file unless we are debugging. */ | |
1635 | ||
1636 | static void | |
1637 | maybe_unlink (file) | |
1638 | char *file; | |
1639 | { | |
1640 | if (!debug) | |
1641 | unlink (file); | |
1642 | else | |
1643 | fprintf (stderr, "[Leaving %s]\n", file); | |
1644 | } | |
1645 | ||
1646 | \f | |
1647 | /* Add a name to a linked list. */ | |
1648 | ||
1649 | static void | |
1650 | add_to_list (head_ptr, name) | |
1651 | struct head *head_ptr; | |
1652 | char *name; | |
1653 | { | |
0393b857 JM |
1654 | struct id *newid |
1655 | = (struct id *) xcalloc (sizeof (struct id) + strlen (name), 1); | |
1656 | struct id *p; | |
4e81a331 | 1657 | static long sequence_number = 0; |
4e81a331 RS |
1658 | strcpy (newid->name, name); |
1659 | ||
1660 | if (head_ptr->first) | |
1661 | head_ptr->last->next = newid; | |
1662 | else | |
1663 | head_ptr->first = newid; | |
1664 | ||
0393b857 JM |
1665 | /* Check for duplicate symbols. */ |
1666 | for (p = head_ptr->first; | |
1667 | strcmp (name, p->name) != 0; | |
1668 | p = p->next) | |
1669 | ; | |
1670 | if (p != newid) | |
1671 | { | |
1672 | head_ptr->last->next = 0; | |
1673 | free (newid); | |
1674 | return; | |
1675 | } | |
1676 | ||
1677 | newid->sequence = ++sequence_number; | |
4e81a331 RS |
1678 | head_ptr->last = newid; |
1679 | head_ptr->number++; | |
1680 | } | |
1681 | ||
1682 | /* Write: `prefix', the names on list LIST, `suffix'. */ | |
1683 | ||
1684 | static void | |
1685 | write_list (stream, prefix, list) | |
1686 | FILE *stream; | |
1687 | char *prefix; | |
1688 | struct id *list; | |
1689 | { | |
1690 | while (list) | |
1691 | { | |
1692 | fprintf (stream, "%sx%d,\n", prefix, list->sequence); | |
1693 | list = list->next; | |
1694 | } | |
1695 | } | |
1696 | ||
1697 | static void | |
1698 | write_list_with_asm (stream, prefix, list) | |
1699 | FILE *stream; | |
1700 | char *prefix; | |
1701 | struct id *list; | |
1702 | { | |
1703 | while (list) | |
1704 | { | |
c7af43d8 | 1705 | fprintf (stream, "%sx%d __asm__ (\"%s\");\n", |
4e81a331 RS |
1706 | prefix, list->sequence, list->name); |
1707 | list = list->next; | |
1708 | } | |
1709 | } | |
1710 | ||
68d69835 JM |
1711 | /* Write out the constructor and destructor tables statically (for a shared |
1712 | object), along with the functions to execute them. */ | |
1713 | ||
1714 | static void | |
1715 | write_c_file_stat (stream, name) | |
1716 | FILE *stream; | |
1717 | char *name; | |
1718 | { | |
1719 | char *prefix, *p, *q; | |
68d69835 JM |
1720 | |
1721 | /* Figure out name of output_file, stripping off .so version. */ | |
1722 | p = rindex (output_file, '/'); | |
1723 | if (p == 0) | |
1724 | p = (char *) output_file; | |
1725 | else | |
1726 | p++; | |
1727 | q = p; | |
1728 | while (q) | |
1729 | { | |
1730 | q = index (q,'.'); | |
1731 | if (q == 0) | |
1732 | { | |
1733 | q = p + strlen (p); | |
1734 | break; | |
1735 | } | |
1736 | else | |
1737 | { | |
1738 | if (strncmp (q, ".so", 3) == 0) | |
1739 | { | |
1740 | q += 3; | |
1741 | break; | |
1742 | } | |
1743 | else | |
1744 | q++; | |
1745 | } | |
1746 | } | |
1747 | /* q points to null at end of the string (or . of the .so version) */ | |
1748 | prefix = xmalloc (q - p + 1); | |
1749 | strncpy (prefix, p, q - p); | |
1750 | prefix[q - p] = 0; | |
1751 | for (q = prefix; *q; q++) | |
1752 | if (!isalnum (*q)) | |
1753 | *q = '_'; | |
1754 | if (debug) | |
1755 | fprintf (stderr, "\nwrite_c_file - output name is %s, prefix is %s\n", | |
1756 | output_file, prefix); | |
1757 | ||
1758 | #define INIT_NAME_FORMAT "_GLOBAL__FI_%s" | |
1759 | initname = xmalloc (strlen (prefix) + sizeof (INIT_NAME_FORMAT) - 2); | |
1760 | sprintf (initname, INIT_NAME_FORMAT, prefix); | |
1761 | ||
1762 | #define FINI_NAME_FORMAT "_GLOBAL__FD_%s" | |
1763 | fininame = xmalloc (strlen (prefix) + sizeof (FINI_NAME_FORMAT) - 2); | |
1764 | sprintf (fininame, FINI_NAME_FORMAT, prefix); | |
1765 | ||
1766 | free (prefix); | |
1767 | ||
1768 | /* Write the tables as C code */ | |
1769 | ||
1770 | fprintf (stream, "static int count;\n"); | |
1771 | fprintf (stream, "typedef void entry_pt();\n"); | |
1772 | write_list_with_asm (stream, "extern entry_pt ", constructors.first); | |
1773 | fprintf (stream, "void %s() {\n", initname); | |
1774 | if (constructors.number > 0) | |
1775 | { | |
1776 | fprintf (stream, "\tstatic entry_pt *ctors[] = {\n"); | |
1777 | write_list (stream, "\t\t", constructors.first); | |
1778 | fprintf (stream, "\t};\n"); | |
1779 | fprintf (stream, "\tentry_pt **p;\n"); | |
1780 | fprintf (stream, "\tif (count++ != 0) return;\n"); | |
1781 | fprintf (stream, "\tp = ctors + %d;\n", constructors.number); | |
1782 | fprintf (stream, "\twhile (p > ctors) (*--p)();\n"); | |
1783 | } | |
603b4064 RK |
1784 | else |
1785 | fprintf (stream, "\t++count;\n"); | |
68d69835 JM |
1786 | fprintf (stream, "}\n"); |
1787 | write_list_with_asm (stream, "extern entry_pt ", destructors.first); | |
1788 | fprintf (stream, "void %s() {\n", fininame); | |
1789 | if (destructors.number > 0) | |
1790 | { | |
1791 | fprintf (stream, "\tstatic entry_pt *dtors[] = {\n"); | |
1792 | write_list (stream, "\t\t", destructors.first); | |
1793 | fprintf (stream, "\t};\n"); | |
1794 | fprintf (stream, "\tentry_pt **p;\n"); | |
1795 | fprintf (stream, "\tif (--count != 0) return;\n"); | |
1796 | fprintf (stream, "\tp = dtors;\n"); | |
1797 | fprintf (stream, "\twhile (p < dtors + %d) (*p++)();\n", | |
1798 | destructors.number); | |
1799 | } | |
1800 | fprintf (stream, "}\n"); | |
1801 | ||
603b4064 RK |
1802 | if (shared_obj) |
1803 | { | |
1804 | fprintf (stream, "void _GLOBAL__DI() {\n\t%s();\n}\n", initname); | |
1805 | fprintf (stream, "void _GLOBAL__DD() {\n\t%s();\n}\n", fininame); | |
1806 | } | |
68d69835 JM |
1807 | } |
1808 | ||
4e81a331 RS |
1809 | /* Write the constructor/destructor tables. */ |
1810 | ||
1811 | static void | |
68d69835 | 1812 | write_c_file_glob (stream, name) |
4e81a331 RS |
1813 | FILE *stream; |
1814 | char *name; | |
1815 | { | |
1816 | /* Write the tables as C code */ | |
1817 | ||
1818 | fprintf (stream, "typedef void entry_pt();\n\n"); | |
1819 | ||
17704846 | 1820 | write_list_with_asm (stream, "extern entry_pt ", constructors.first); |
4e81a331 RS |
1821 | |
1822 | fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n"); | |
1823 | fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number); | |
ed5b9462 | 1824 | write_list (stream, "\t", constructors.first); |
4e81a331 RS |
1825 | fprintf (stream, "\t0\n};\n\n"); |
1826 | ||
17704846 | 1827 | write_list_with_asm (stream, "extern entry_pt ", destructors.first); |
4e81a331 RS |
1828 | |
1829 | fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n"); | |
1830 | fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number); | |
ed5b9462 | 1831 | write_list (stream, "\t", destructors.first); |
4e81a331 RS |
1832 | fprintf (stream, "\t0\n};\n\n"); |
1833 | ||
d6cf3187 RS |
1834 | fprintf (stream, "extern entry_pt %s;\n", NAME__MAIN); |
1835 | fprintf (stream, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN); | |
4e81a331 RS |
1836 | } |
1837 | ||
68d69835 JM |
1838 | static void |
1839 | write_c_file (stream, name) | |
1840 | FILE *stream; | |
1841 | char *name; | |
1842 | { | |
603b4064 RK |
1843 | #ifndef LD_INIT_SWITCH |
1844 | if (! shared_obj) | |
68d69835 | 1845 | write_c_file_glob (stream, name); |
603b4064 RK |
1846 | else |
1847 | #endif | |
1848 | write_c_file_stat (stream, name); | |
68d69835 | 1849 | } |
cbbbd917 JM |
1850 | |
1851 | static void | |
1852 | write_export_file (stream) | |
1853 | FILE *stream; | |
1854 | { | |
1855 | struct id *list = exports.first; | |
1856 | for (; list; list = list->next) | |
1857 | fprintf (stream, "%s\n", list->name); | |
1858 | } | |
4e81a331 | 1859 | \f |
ed5b9462 | 1860 | #ifdef OBJECT_FORMAT_NONE |
4e81a331 | 1861 | |
ed5b9462 RS |
1862 | /* Generic version to scan the name list of the loaded program for |
1863 | the symbols g++ uses for static constructors and destructors. | |
4e81a331 RS |
1864 | |
1865 | The constructor table begins at __CTOR_LIST__ and contains a count | |
1866 | of the number of pointers (or -1 if the constructors are built in a | |
1867 | separate section by the linker), followed by the pointers to the | |
1868 | constructor functions, terminated with a null pointer. The | |
1869 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
1870 | ||
1871 | static void | |
1872 | scan_prog_file (prog_name, which_pass) | |
1873 | char *prog_name; | |
1874 | enum pass which_pass; | |
1875 | { | |
ed5b9462 RS |
1876 | void (*int_handler) (); |
1877 | void (*quit_handler) (); | |
4e81a331 RS |
1878 | char *nm_argv[4]; |
1879 | int pid; | |
1880 | int argc = 0; | |
1881 | int pipe_fd[2]; | |
1882 | char *p, buf[1024]; | |
1883 | FILE *inf; | |
1884 | ||
68d69835 | 1885 | if (which_pass == PASS_SECOND) |
4e81a331 RS |
1886 | return; |
1887 | ||
bb59f9a6 RS |
1888 | /* If we don't have an `nm', complain. */ |
1889 | if (nm_file_name == 0) | |
1890 | fatal ("cannot find `nm'"); | |
1891 | ||
68d69835 | 1892 | nm_argv[argc++] = nm_file_name; |
4e81a331 | 1893 | if (NM_FLAGS[0] != '\0') |
ed5b9462 | 1894 | nm_argv[argc++] = NM_FLAGS; |
4e81a331 | 1895 | |
ed5b9462 RS |
1896 | nm_argv[argc++] = prog_name; |
1897 | nm_argv[argc++] = (char *)0; | |
4e81a331 RS |
1898 | |
1899 | if (pipe (pipe_fd) < 0) | |
1900 | fatal_perror ("pipe"); | |
1901 | ||
1902 | inf = fdopen (pipe_fd[0], "r"); | |
1903 | if (inf == (FILE *)0) | |
1904 | fatal_perror ("fdopen"); | |
1905 | ||
1906 | /* Trace if needed. */ | |
1907 | if (vflag) | |
1908 | { | |
1909 | char **p_argv; | |
1910 | char *str; | |
1911 | ||
68d69835 | 1912 | for (p_argv = &nm_argv[0]; (str = *p_argv) != (char *)0; p_argv++) |
4e81a331 RS |
1913 | fprintf (stderr, " %s", str); |
1914 | ||
1915 | fprintf (stderr, "\n"); | |
1916 | } | |
1917 | ||
1918 | fflush (stdout); | |
1919 | fflush (stderr); | |
1920 | ||
1921 | /* Spawn child nm on pipe */ | |
1922 | pid = vfork (); | |
1923 | if (pid == -1) | |
cf0c751a JW |
1924 | { |
1925 | #ifdef vfork | |
1926 | fatal_perror ("fork"); | |
1927 | #else | |
1928 | fatal_perror ("vfork"); | |
1929 | #endif | |
1930 | } | |
4e81a331 RS |
1931 | |
1932 | if (pid == 0) /* child context */ | |
1933 | { | |
1934 | /* setup stdout */ | |
1935 | if (dup2 (pipe_fd[1], 1) < 0) | |
1fab8e81 | 1936 | fatal_perror ("dup2 (%d, 1)", pipe_fd[1]); |
4e81a331 RS |
1937 | |
1938 | if (close (pipe_fd[0]) < 0) | |
1fab8e81 | 1939 | fatal_perror ("close (%d)", pipe_fd[0]); |
4e81a331 RS |
1940 | |
1941 | if (close (pipe_fd[1]) < 0) | |
1fab8e81 | 1942 | fatal_perror ("close (%d)", pipe_fd[1]); |
4e81a331 RS |
1943 | |
1944 | execv (nm_file_name, nm_argv); | |
1fab8e81 | 1945 | fatal_perror ("executing %s", nm_file_name); |
4e81a331 RS |
1946 | } |
1947 | ||
1948 | /* Parent context from here on. */ | |
ed5b9462 | 1949 | int_handler = (void (*) ())signal (SIGINT, SIG_IGN); |
8ab861c7 | 1950 | #ifdef SIGQUIT |
ed5b9462 | 1951 | quit_handler = (void (*) ())signal (SIGQUIT, SIG_IGN); |
8ab861c7 | 1952 | #endif |
4e81a331 RS |
1953 | |
1954 | if (close (pipe_fd[1]) < 0) | |
1fab8e81 | 1955 | fatal_perror ("close (%d)", pipe_fd[1]); |
4e81a331 RS |
1956 | |
1957 | if (debug) | |
1958 | fprintf (stderr, "\nnm output with constructors/destructors.\n"); | |
1959 | ||
1960 | /* Read each line of nm output. */ | |
1961 | while (fgets (buf, sizeof buf, inf) != (char *)0) | |
1962 | { | |
1963 | int ch, ch2; | |
ed5b9462 | 1964 | char *name, *end; |
4e81a331 RS |
1965 | |
1966 | /* If it contains a constructor or destructor name, add the name | |
1967 | to the appropriate list. */ | |
1968 | ||
1969 | for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++) | |
68d69835 JM |
1970 | if (ch == ' ' && p[1] == 'U' && p[2] == ' ') |
1971 | break; | |
4e81a331 | 1972 | |
68d69835 | 1973 | if (ch != '_') |
4e81a331 | 1974 | continue; |
ed5b9462 RS |
1975 | |
1976 | name = p; | |
1977 | /* Find the end of the symbol name. | |
1978 | Don't include `|', because Encore nm can tack that on the end. */ | |
1979 | for (end = p; (ch2 = *end) != '\0' && !isspace (ch2) && ch2 != '|'; | |
1980 | end++) | |
1981 | continue; | |
4e81a331 | 1982 | |
90d326bd | 1983 | |
4e81a331 | 1984 | *end = '\0'; |
ed5b9462 | 1985 | switch (is_ctor_dtor (name)) |
4e81a331 | 1986 | { |
ed5b9462 | 1987 | case 1: |
68d69835 JM |
1988 | if (which_pass != PASS_LIB) |
1989 | add_to_list (&constructors, name); | |
ed5b9462 | 1990 | break; |
4e81a331 | 1991 | |
ed5b9462 | 1992 | case 2: |
68d69835 JM |
1993 | if (which_pass != PASS_LIB) |
1994 | add_to_list (&destructors, name); | |
1995 | break; | |
1996 | ||
1997 | case 3: | |
1998 | if (which_pass != PASS_LIB) | |
1999 | fatal ("init function found in object %s", prog_name); | |
35e530c5 | 2000 | #ifndef LD_INIT_SWITCH |
68d69835 | 2001 | add_to_list (&constructors, name); |
35e530c5 | 2002 | #endif |
68d69835 JM |
2003 | break; |
2004 | ||
2005 | case 4: | |
2006 | if (which_pass != PASS_LIB) | |
35e530c5 JM |
2007 | fatal ("fini function found in object %s", prog_name); |
2008 | #ifndef LD_FINI_SWITCH | |
ed5b9462 | 2009 | add_to_list (&destructors, name); |
35e530c5 | 2010 | #endif |
ed5b9462 | 2011 | break; |
4e81a331 | 2012 | |
ed5b9462 RS |
2013 | default: /* not a constructor or destructor */ |
2014 | continue; | |
4e81a331 RS |
2015 | } |
2016 | ||
4e81a331 RS |
2017 | if (debug) |
2018 | fprintf (stderr, "\t%s\n", buf); | |
2019 | } | |
2020 | ||
2021 | if (debug) | |
2022 | fprintf (stderr, "\n"); | |
2023 | ||
2024 | if (fclose (inf) != 0) | |
2025 | fatal_perror ("fclose of pipe"); | |
2026 | ||
2027 | do_wait (nm_file_name); | |
2028 | ||
2029 | signal (SIGINT, int_handler); | |
8ab861c7 | 2030 | #ifdef SIGQUIT |
4e81a331 | 2031 | signal (SIGQUIT, quit_handler); |
8ab861c7 | 2032 | #endif |
4e81a331 RS |
2033 | } |
2034 | ||
a3184468 | 2035 | #if SUNOS4_SHARED_LIBRARIES |
68d69835 JM |
2036 | |
2037 | /* Routines to scan the SunOS 4 _DYNAMIC structure to find shared libraries | |
2038 | that the output file depends upon and their initialization/finalization | |
2039 | routines, if any. */ | |
2040 | ||
2041 | #include <a.out.h> | |
2042 | #include <fcntl.h> | |
2043 | #include <link.h> | |
2044 | #include <sys/mman.h> | |
2045 | #include <sys/param.h> | |
2046 | #include <sys/unistd.h> | |
28aaf32b | 2047 | #include <sys/dir.h> |
68d69835 JM |
2048 | |
2049 | /* pointers to the object file */ | |
2050 | unsigned object; /* address of memory mapped file */ | |
2051 | unsigned objsize; /* size of memory mapped to file */ | |
2052 | char * code; /* pointer to code segment */ | |
2053 | char * data; /* pointer to data segment */ | |
2054 | struct nlist *symtab; /* pointer to symbol table */ | |
2055 | struct link_dynamic *ld; | |
2056 | struct link_dynamic_2 *ld_2; | |
2057 | struct head libraries; | |
2058 | ||
2059 | /* Map the file indicated by NAME into memory and store its address. */ | |
2060 | ||
2061 | static void | |
2062 | mapfile (name) | |
2063 | char *name; | |
2064 | { | |
2065 | int fp; | |
2066 | struct stat s; | |
2067 | if ((fp = open (name, O_RDONLY)) == -1) | |
2068 | fatal ("unable to open file '%s'", name); | |
2069 | if (fstat (fp, &s) == -1) | |
2070 | fatal ("unable to stat file '%s'", name); | |
2071 | ||
2072 | objsize = s.st_size; | |
2073 | object = (unsigned) mmap (0, objsize, PROT_READ|PROT_WRITE, MAP_PRIVATE, | |
2074 | fp, 0); | |
2075 | if (object == -1) | |
2076 | fatal ("unable to mmap file '%s'", name); | |
2077 | ||
2078 | close (fp); | |
2079 | } | |
2080 | ||
28aaf32b JM |
2081 | /* Helpers for locatelib. */ |
2082 | ||
2083 | static char *libname; | |
2084 | ||
2085 | static int | |
2086 | libselect (d) | |
2087 | struct direct *d; | |
2088 | { | |
2089 | return (strncmp (libname, d->d_name, strlen (libname)) == 0); | |
2090 | } | |
2091 | ||
abc95ed3 | 2092 | /* If one file has an additional numeric extension past LIBNAME, then put |
3689b507 RK |
2093 | that one first in the sort. If both files have additional numeric |
2094 | extensions, then put the one with the higher number first in the sort. | |
2095 | ||
2096 | We must verify that the extension is numeric, because Sun saves the | |
2097 | original versions of patched libraries with a .FCS extension. Files with | |
2098 | invalid extensions must go last in the sort, so that they won't be used. */ | |
2099 | ||
28aaf32b JM |
2100 | static int |
2101 | libcompare (d1, d2) | |
2102 | struct direct **d1, **d2; | |
2103 | { | |
2104 | int i1, i2 = strlen (libname); | |
2105 | char *e1 = (*d1)->d_name + i2; | |
2106 | char *e2 = (*d2)->d_name + i2; | |
2107 | ||
3689b507 RK |
2108 | while (*e1 && *e2 && *e1 == '.' && *e2 == '.' |
2109 | && e1[1] && isdigit (e1[1]) && e2[1] && isdigit (e2[1])) | |
28aaf32b JM |
2110 | { |
2111 | ++e1; | |
2112 | ++e2; | |
2113 | i1 = strtol (e1, &e1, 10); | |
2114 | i2 = strtol (e2, &e2, 10); | |
2115 | if (i1 != i2) | |
2116 | return i1 - i2; | |
2117 | } | |
2118 | ||
2119 | if (*e1) | |
3689b507 RK |
2120 | { |
2121 | /* It has a valid numeric extension, prefer this one. */ | |
2122 | if (*e1 == '.' && e1[1] && isdigit (e1[1])) | |
2123 | return 1; | |
2124 | /* It has a invalid numeric extension, must prefer the other one. */ | |
2125 | else | |
2126 | return -1; | |
2127 | } | |
28aaf32b | 2128 | else if (*e2) |
3689b507 RK |
2129 | { |
2130 | /* It has a valid numeric extension, prefer this one. */ | |
2131 | if (*e2 == '.' && e2[1] && isdigit (e2[1])) | |
2132 | return -1; | |
2133 | /* It has a invalid numeric extension, must prefer the other one. */ | |
2134 | else | |
2135 | return 1; | |
2136 | } | |
28aaf32b JM |
2137 | else |
2138 | return 0; | |
2139 | } | |
2140 | ||
68d69835 JM |
2141 | /* Given the name NAME of a dynamic dependency, find its pathname and add |
2142 | it to the list of libraries. */ | |
2143 | ||
2144 | static void | |
2145 | locatelib (name) | |
2146 | char *name; | |
2147 | { | |
2148 | static char **l; | |
2149 | static int cnt; | |
2150 | char buf[MAXPATHLEN]; | |
2151 | char *p, *q; | |
2152 | char **pp; | |
2153 | ||
2154 | if (l == 0) | |
2155 | { | |
2156 | char *ld_rules; | |
2157 | char *ldr = 0; | |
2158 | /* counting elements in array, need 1 extra for null */ | |
2159 | cnt = 1; | |
2160 | ld_rules = (char *) (ld_2->ld_rules + code); | |
2161 | if (ld_rules) | |
2162 | { | |
2163 | cnt++; | |
2164 | for (; *ld_rules != 0; ld_rules++) | |
2165 | if (*ld_rules == ':') | |
2166 | cnt++; | |
2167 | ld_rules = (char *) (ld_2->ld_rules + code); | |
2168 | ldr = (char *) malloc (strlen (ld_rules) + 1); | |
2169 | strcpy (ldr, ld_rules); | |
2170 | } | |
2171 | p = getenv ("LD_LIBRARY_PATH"); | |
2172 | q = 0; | |
2173 | if (p) | |
2174 | { | |
2175 | cnt++; | |
2176 | for (q = p ; *q != 0; q++) | |
2177 | if (*q == ':') | |
2178 | cnt++; | |
2179 | q = (char *) malloc (strlen (p) + 1); | |
2180 | strcpy (q, p); | |
2181 | } | |
2182 | l = (char **) malloc ((cnt + 3) * sizeof (char *)); | |
2183 | pp = l; | |
2184 | if (ldr) | |
2185 | { | |
2186 | *pp++ = ldr; | |
2187 | for (; *ldr != 0; ldr++) | |
2188 | if (*ldr == ':') | |
2189 | { | |
2190 | *ldr++ = 0; | |
2191 | *pp++ = ldr; | |
2192 | } | |
2193 | } | |
2194 | if (q) | |
2195 | { | |
2196 | *pp++ = q; | |
2197 | for (; *q != 0; q++) | |
2198 | if (*q == ':') | |
2199 | { | |
2200 | *q++ = 0; | |
245c3e25 | 2201 | *pp++ = q; |
68d69835 JM |
2202 | } |
2203 | } | |
2204 | /* built in directories are /lib, /usr/lib, and /usr/local/lib */ | |
2205 | *pp++ = "/lib"; | |
2206 | *pp++ = "/usr/lib"; | |
2207 | *pp++ = "/usr/local/lib"; | |
2208 | *pp = 0; | |
2209 | } | |
28aaf32b | 2210 | libname = name; |
68d69835 JM |
2211 | for (pp = l; *pp != 0 ; pp++) |
2212 | { | |
28aaf32b JM |
2213 | struct direct **namelist; |
2214 | int entries; | |
2215 | if ((entries = scandir (*pp, &namelist, libselect, libcompare)) > 0) | |
68d69835 | 2216 | { |
28aaf32b | 2217 | sprintf (buf, "%s/%s", *pp, namelist[entries - 1]->d_name); |
68d69835 JM |
2218 | add_to_list (&libraries, buf); |
2219 | if (debug) | |
2220 | fprintf (stderr, "%s\n", buf); | |
2221 | break; | |
2222 | } | |
2223 | } | |
2224 | if (*pp == 0) | |
2225 | { | |
2226 | if (debug) | |
2227 | fprintf (stderr, "not found\n"); | |
2228 | else | |
2229 | fatal ("dynamic dependency %s not found", name); | |
2230 | } | |
2231 | } | |
2232 | ||
2233 | /* Scan the _DYNAMIC structure of the output file to find shared libraries | |
2234 | that it depends upon and any constructors or destructors they contain. */ | |
2235 | ||
2236 | static void | |
2237 | scan_libraries (prog_name) | |
2238 | char *prog_name; | |
2239 | { | |
2240 | struct exec *header; | |
2241 | char *base; | |
2242 | struct link_object *lo; | |
2243 | char buff[MAXPATHLEN]; | |
2244 | struct id *list; | |
2245 | ||
2246 | mapfile (prog_name); | |
2247 | header = (struct exec *)object; | |
2248 | if (N_BADMAG (*header)) | |
2249 | fatal ("bad magic number in file '%s'", prog_name); | |
2250 | if (header->a_dynamic == 0) | |
2251 | return; | |
2252 | ||
2253 | code = (char *) (N_TXTOFF (*header) + (long) header); | |
2254 | data = (char *) (N_DATOFF (*header) + (long) header); | |
2255 | symtab = (struct nlist *) (N_SYMOFF (*header) + (long) header); | |
2256 | ||
2257 | if (header->a_magic == ZMAGIC && header->a_entry == 0x20) | |
2258 | { | |
2259 | /* shared object */ | |
2260 | ld = (struct link_dynamic *) (symtab->n_value + code); | |
2261 | base = code; | |
2262 | } | |
2263 | else | |
2264 | { | |
2265 | /* executable */ | |
2266 | ld = (struct link_dynamic *) data; | |
2267 | base = code-PAGSIZ; | |
2268 | } | |
2269 | ||
2270 | if (debug) | |
2271 | fprintf (stderr, "dynamic dependencies.\n"); | |
2272 | ||
2273 | ld_2 = (struct link_dynamic_2 *) ((long) ld->ld_un.ld_2 + (long)base); | |
2274 | for (lo = (struct link_object *) ld_2->ld_need; lo; | |
2275 | lo = (struct link_object *) lo->lo_next) | |
2276 | { | |
2277 | char *name; | |
2278 | lo = (struct link_object *) ((long) lo + code); | |
2279 | name = (char *) (code + lo->lo_name); | |
2280 | if (lo->lo_library) | |
2281 | { | |
2282 | if (debug) | |
2283 | fprintf (stderr, "\t-l%s.%d => ", name, lo->lo_major); | |
2284 | sprintf (buff, "lib%s.so.%d.%d", name, lo->lo_major, lo->lo_minor); | |
2285 | locatelib (buff); | |
2286 | } | |
2287 | else | |
2288 | { | |
2289 | if (debug) | |
2290 | fprintf (stderr, "\t%s\n", name); | |
2291 | add_to_list (&libraries, name); | |
2292 | } | |
2293 | } | |
2294 | ||
2295 | if (debug) | |
2296 | fprintf (stderr, "\n"); | |
2297 | ||
2298 | /* now iterate through the library list adding their symbols to | |
2299 | the list. */ | |
2300 | for (list = libraries.first; list; list = list->next) | |
2301 | scan_prog_file (list->name, PASS_LIB); | |
2302 | } | |
2303 | ||
2304 | #else /* SUNOS4_SHARED_LIBRARIES */ | |
2305 | #ifdef LDD_SUFFIX | |
2306 | ||
2307 | /* Use the List Dynamic Dependencies program to find shared libraries that | |
2308 | the output file depends upon and their initialization/finalization | |
2309 | routines, if any. */ | |
2310 | ||
2311 | static void | |
2312 | scan_libraries (prog_name) | |
2313 | char *prog_name; | |
2314 | { | |
2315 | static struct head libraries; /* list of shared libraries found */ | |
2316 | struct id *list; | |
2317 | void (*int_handler) (); | |
2318 | void (*quit_handler) (); | |
2319 | char *ldd_argv[4]; | |
2320 | int pid; | |
2321 | int argc = 0; | |
2322 | int pipe_fd[2]; | |
2323 | char buf[1024]; | |
2324 | FILE *inf; | |
2325 | ||
2326 | /* If we don't have an `ldd', complain. */ | |
2327 | if (ldd_file_name == 0) | |
2328 | { | |
2329 | error ("cannot find `ldd'"); | |
2330 | return; | |
2331 | } | |
2332 | ||
2333 | ldd_argv[argc++] = ldd_file_name; | |
2334 | ldd_argv[argc++] = prog_name; | |
2335 | ldd_argv[argc++] = (char *) 0; | |
2336 | ||
2337 | if (pipe (pipe_fd) < 0) | |
2338 | fatal_perror ("pipe"); | |
2339 | ||
2340 | inf = fdopen (pipe_fd[0], "r"); | |
2341 | if (inf == (FILE *) 0) | |
2342 | fatal_perror ("fdopen"); | |
2343 | ||
2344 | /* Trace if needed. */ | |
2345 | if (vflag) | |
2346 | { | |
2347 | char **p_argv; | |
2348 | char *str; | |
2349 | ||
2350 | for (p_argv = &ldd_argv[0]; (str = *p_argv) != (char *) 0; p_argv++) | |
2351 | fprintf (stderr, " %s", str); | |
2352 | ||
2353 | fprintf (stderr, "\n"); | |
2354 | } | |
2355 | ||
2356 | fflush (stdout); | |
2357 | fflush (stderr); | |
2358 | ||
2359 | /* Spawn child ldd on pipe */ | |
2360 | pid = vfork (); | |
2361 | if (pid == -1) | |
2362 | { | |
2363 | #ifdef vfork | |
2364 | fatal_perror ("fork"); | |
2365 | #else | |
2366 | fatal_perror ("vfork"); | |
2367 | #endif | |
2368 | } | |
2369 | ||
2370 | if (pid == 0) /* child context */ | |
2371 | { | |
2372 | /* setup stdout */ | |
2373 | if (dup2 (pipe_fd[1], 1) < 0) | |
2374 | fatal_perror ("dup2 (%d, 1)", pipe_fd[1]); | |
2375 | ||
2376 | if (close (pipe_fd[0]) < 0) | |
2377 | fatal_perror ("close (%d)", pipe_fd[0]); | |
2378 | ||
2379 | if (close (pipe_fd[1]) < 0) | |
2380 | fatal_perror ("close (%d)", pipe_fd[1]); | |
2381 | ||
2382 | execv (ldd_file_name, ldd_argv); | |
2383 | fatal_perror ("executing %s", ldd_file_name); | |
2384 | } | |
2385 | ||
2386 | /* Parent context from here on. */ | |
2387 | int_handler = (void (*) ()) signal (SIGINT, SIG_IGN); | |
2388 | #ifdef SIGQUIT | |
2389 | quit_handler = (void (*) ()) signal (SIGQUIT, SIG_IGN); | |
2390 | #endif | |
2391 | ||
2392 | if (close (pipe_fd[1]) < 0) | |
2393 | fatal_perror ("close (%d)", pipe_fd[1]); | |
2394 | ||
2395 | if (debug) | |
2396 | fprintf (stderr, "\nldd output with constructors/destructors.\n"); | |
2397 | ||
2398 | /* Read each line of ldd output. */ | |
2399 | while (fgets (buf, sizeof buf, inf) != (char *) 0) | |
2400 | { | |
2401 | int ch, ch2; | |
2402 | char *name, *end, *p = buf; | |
2403 | ||
2404 | /* Extract names of libraries and add to list. */ | |
2405 | PARSE_LDD_OUTPUT (p); | |
2406 | if (p == 0) | |
2407 | continue; | |
2408 | ||
2409 | name = p; | |
2410 | if (strncmp (name, "not found", sizeof ("not found") - 1) == 0) | |
2411 | fatal ("dynamic dependency %s not found", buf); | |
2412 | ||
2413 | /* Find the end of the symbol name. */ | |
2414 | for (end = p; | |
2415 | (ch2 = *end) != '\0' && ch2 != '\n' && !isspace (ch2) && ch2 != '|'; | |
2416 | end++) | |
2417 | continue; | |
2418 | *end = '\0'; | |
2419 | ||
2420 | if (access (name, R_OK) == 0) | |
2421 | add_to_list (&libraries, name); | |
2422 | else | |
2423 | fatal ("unable to open dynamic dependency '%s'", buf); | |
2424 | ||
2425 | if (debug) | |
2426 | fprintf (stderr, "\t%s\n", buf); | |
2427 | } | |
2428 | if (debug) | |
2429 | fprintf (stderr, "\n"); | |
2430 | ||
2431 | if (fclose (inf) != 0) | |
2432 | fatal_perror ("fclose of pipe"); | |
2433 | ||
2434 | do_wait (ldd_file_name); | |
2435 | ||
2436 | signal (SIGINT, int_handler); | |
2437 | #ifdef SIGQUIT | |
2438 | signal (SIGQUIT, quit_handler); | |
2439 | #endif | |
2440 | ||
2441 | /* now iterate through the library list adding their symbols to | |
2442 | the list. */ | |
2443 | for (list = libraries.first; list; list = list->next) | |
2444 | scan_prog_file (list->name, PASS_LIB); | |
2445 | } | |
2446 | ||
2447 | #endif /* LDD_SUFFIX */ | |
2448 | #endif /* SUNOS4_SHARED_LIBRARIES */ | |
2449 | ||
ed5b9462 RS |
2450 | #endif /* OBJECT_FORMAT_NONE */ |
2451 | ||
2452 | \f | |
2453 | /* | |
2454 | * COFF specific stuff. | |
2455 | */ | |
2456 | ||
2457 | #ifdef OBJECT_FORMAT_COFF | |
2458 | ||
2459 | #if defined(EXTENDED_COFF) | |
17704846 JW |
2460 | # define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax) |
2461 | # define GCC_SYMENT SYMR | |
2462 | # define GCC_OK_SYMBOL(X) ((X).st == stProc && (X).sc == scText) | |
2463 | # define GCC_SYMINC(X) (1) | |
2464 | # define GCC_SYMZERO(X) (SYMHEADER(X).isymMax) | |
2465 | # define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0) | |
ed5b9462 | 2466 | #else |
17704846 JW |
2467 | # define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms) |
2468 | # define GCC_SYMENT SYMENT | |
ed5b9462 RS |
2469 | # define GCC_OK_SYMBOL(X) \ |
2470 | (((X).n_sclass == C_EXT) && \ | |
2471 | (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) || \ | |
2472 | ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT))) | |
17704846 JW |
2473 | # define GCC_SYMINC(X) ((X).n_numaux+1) |
2474 | # define GCC_SYMZERO(X) 0 | |
2475 | # define GCC_CHECK_HDR(X) (1) | |
ed5b9462 RS |
2476 | #endif |
2477 | ||
2478 | extern char *ldgetname (); | |
2479 | ||
2480 | /* COFF version to scan the name list of the loaded program for | |
2481 | the symbols g++ uses for static constructors and destructors. | |
2482 | ||
2483 | The constructor table begins at __CTOR_LIST__ and contains a count | |
2484 | of the number of pointers (or -1 if the constructors are built in a | |
2485 | separate section by the linker), followed by the pointers to the | |
2486 | constructor functions, terminated with a null pointer. The | |
2487 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
2488 | ||
2489 | static void | |
2490 | scan_prog_file (prog_name, which_pass) | |
2491 | char *prog_name; | |
2492 | enum pass which_pass; | |
2493 | { | |
f3c3d3df | 2494 | LDFILE *ldptr = NULL; |
ed5b9462 RS |
2495 | int sym_index, sym_count; |
2496 | ||
cbbbd917 | 2497 | if (which_pass != PASS_FIRST && which_pass != PASS_OBJ) |
ed5b9462 RS |
2498 | return; |
2499 | ||
2500 | if ((ldptr = ldopen (prog_name, ldptr)) == NULL) | |
2501 | fatal ("%s: can't open as COFF file", prog_name); | |
2502 | ||
e99467d2 | 2503 | if (!MY_ISCOFF (HEADER (ldptr).f_magic)) |
ed5b9462 RS |
2504 | fatal ("%s: not a COFF file", prog_name); |
2505 | ||
17704846 | 2506 | if (GCC_CHECK_HDR (ldptr)) |
ed5b9462 | 2507 | { |
17704846 JW |
2508 | sym_count = GCC_SYMBOLS (ldptr); |
2509 | sym_index = GCC_SYMZERO (ldptr); | |
2510 | while (sym_index < sym_count) | |
2511 | { | |
2512 | GCC_SYMENT symbol; | |
ed5b9462 | 2513 | |
17704846 JW |
2514 | if (ldtbread (ldptr, sym_index, &symbol) <= 0) |
2515 | break; | |
2516 | sym_index += GCC_SYMINC (symbol); | |
ed5b9462 | 2517 | |
17704846 JW |
2518 | if (GCC_OK_SYMBOL (symbol)) |
2519 | { | |
2520 | char *name; | |
ed5b9462 | 2521 | |
17704846 JW |
2522 | if ((name = ldgetname (ldptr, &symbol)) == NULL) |
2523 | continue; /* should never happen */ | |
ed5b9462 | 2524 | |
cbbbd917 JM |
2525 | #ifdef XCOFF_DEBUGGING_INFO |
2526 | /* All AIX function names have a duplicate entry beginning | |
2527 | with a dot. */ | |
2528 | if (*name == '.') | |
d36c3fe2 | 2529 | ++name; |
ed5b9462 RS |
2530 | #endif |
2531 | ||
17704846 JW |
2532 | switch (is_ctor_dtor (name)) |
2533 | { | |
2534 | case 1: | |
2535 | add_to_list (&constructors, name); | |
cbbbd917 JM |
2536 | if (which_pass == PASS_OBJ) |
2537 | add_to_list (&exports, name); | |
17704846 | 2538 | break; |
ed5b9462 | 2539 | |
17704846 JW |
2540 | case 2: |
2541 | add_to_list (&destructors, name); | |
cbbbd917 JM |
2542 | if (which_pass == PASS_OBJ) |
2543 | add_to_list (&exports, name); | |
17704846 | 2544 | break; |
ed5b9462 | 2545 | |
17704846 JW |
2546 | default: /* not a constructor or destructor */ |
2547 | continue; | |
2548 | } | |
ed5b9462 RS |
2549 | |
2550 | #if !defined(EXTENDED_COFF) | |
17704846 JW |
2551 | if (debug) |
2552 | fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n", | |
2553 | symbol.n_scnum, symbol.n_sclass, | |
2554 | (symbol.n_type ? "0" : ""), symbol.n_type, | |
2555 | name); | |
ed5b9462 | 2556 | #else |
17704846 JW |
2557 | if (debug) |
2558 | fprintf (stderr, "\tiss = %5d, value = %5d, index = %5d, name = %s\n", | |
2559 | symbol.iss, symbol.value, symbol.index, name); | |
ed5b9462 | 2560 | #endif |
17704846 | 2561 | } |
ed5b9462 RS |
2562 | } |
2563 | } | |
2564 | ||
2565 | (void) ldclose(ldptr); | |
2566 | } | |
2567 | ||
1a8463c9 RK |
2568 | #ifdef XCOFF_SCAN_LIBS |
2569 | /* Scan imported AIX libraries for GCC static ctors and dtors. | |
2570 | FIXME: it is possible to link an executable without the actual import | |
2571 | library by using an "import file" - a text file listing symbols | |
2572 | exported by a library. To support this, we would have to scan | |
2573 | import files as well as actual shared binaries to find GCC ctors. | |
2574 | TODO: use memory mapping instead of 'ld' routines, files are already | |
2575 | memory mapped, but we could eliminate the extra in-memory copies. | |
2576 | Is it worth the effort? */ | |
2577 | ||
2578 | static void | |
2579 | scan_libraries (prog_name) | |
2580 | char *prog_name; | |
2581 | { | |
2582 | LDFILE *ldptr; | |
2583 | SCNHDR ldsh; | |
2584 | static struct path_prefix libpath; /* we should only do this once */ | |
2585 | ||
2586 | if ((ldptr = ldopen (prog_name, ldptr)) == NULL) | |
2587 | fatal ("%s: can't open as COFF file", prog_name); | |
2588 | ||
2589 | if (!MY_ISCOFF (HEADER (ldptr).f_magic)) | |
2590 | fatal ("%s: not a COFF file", prog_name); | |
2591 | ||
2592 | /* find and read loader section */ | |
2593 | if (ldnshread (ldptr, _LOADER, &ldsh)) | |
2594 | { | |
2595 | LDHDR ldh; | |
2596 | char *impbuf; | |
2597 | int idx; | |
2598 | FSEEK (ldptr, ldsh.s_scnptr, BEGINNING); | |
2599 | FREAD (&ldh, sizeof ldh, 1, ldptr); | |
2600 | /* read import library list */ | |
2601 | impbuf = alloca (ldh.l_istlen); | |
2602 | FSEEK (ldptr, ldh.l_impoff + ldsh.s_scnptr, BEGINNING); | |
2603 | FREAD (impbuf, ldh.l_istlen, 1, ldptr); | |
2604 | idx = strlen (impbuf) + 1; | |
2605 | idx += strlen (impbuf+idx) + 1; | |
2606 | if (debug) | |
2607 | fprintf (stderr, "LIBPATH=%s\n", impbuf); | |
2608 | prefix_from_string (impbuf, &libpath); | |
2609 | while (idx < ldh.l_istlen) | |
2610 | { | |
2611 | char *implib = impbuf + idx; | |
2612 | char *impmem = implib + strlen (implib) + 1; | |
2613 | char *soname = 0; | |
2614 | LDFILE *libptr = NULL; | |
2615 | struct prefix_list *pl; | |
2616 | ARCHDR ah; | |
2617 | idx += strlen (implib) + 1; | |
2618 | if (!implib[0]) | |
2619 | continue; | |
2620 | idx += strlen (impmem) + 1; | |
2621 | if (*implib == '/') | |
2622 | { | |
2623 | if (access (soname, R_OK) == 0) | |
2624 | soname = implib; | |
2625 | } | |
2626 | else | |
2627 | { | |
2628 | char *temp = alloca (libpath.max_len + strlen (implib) + 1); | |
2629 | for (pl = libpath.plist; pl; pl = pl->next) | |
2630 | { | |
2631 | strcpy (temp, pl->prefix); | |
2632 | strcat (temp, implib); | |
2633 | if (access (temp, R_OK) == 0) | |
2634 | { | |
2635 | soname = temp; | |
2636 | break; | |
2637 | } | |
2638 | } | |
2639 | } | |
2640 | if (!soname) | |
2641 | { | |
2642 | fatal ("%s: library not found", implib); | |
2643 | continue; | |
2644 | } | |
2645 | if (debug) | |
2646 | { | |
2647 | if (impmem[0]) | |
2648 | fprintf (stderr, "%s (%s)\n", soname, impmem); | |
2649 | else | |
2650 | fprintf (stderr, "%s\n", soname); | |
2651 | } | |
2652 | ah.ar_name[0] = 0; | |
2653 | do | |
2654 | { | |
2655 | /* scan imported shared objects for GCC GLOBAL ctors */ | |
2656 | short type; | |
2657 | if ((libptr = ldopen (soname, libptr)) == NULL) | |
2658 | fatal ("%s: can't open import library", soname); | |
2659 | if (TYPE (libptr) == ARTYPE) | |
2660 | { | |
2661 | LDFILE *memptr; | |
2662 | if (!impmem[0]) | |
2663 | fatal ("%s: no archive member specified", soname); | |
2664 | ldahread (libptr, &ah); | |
2665 | if (strcmp (ah.ar_name, impmem)) | |
2666 | continue; | |
2667 | } | |
2668 | type = HEADER (libptr).f_magic; | |
2669 | if (HEADER (libptr).f_flags & F_SHROBJ) | |
2670 | { | |
2671 | SCNHDR soldsh; | |
2672 | LDHDR soldh; | |
2673 | long symcnt, i; | |
2674 | char *ldstrings; | |
2675 | LDSYM *lsyms; | |
2676 | if (!ldnshread (libptr, _LOADER, &soldsh)) | |
2677 | fatal ("%s: not an import library", soname); | |
2678 | FSEEK (libptr, soldsh.s_scnptr, BEGINNING); | |
2679 | if (FREAD (&soldh, sizeof soldh, 1, libptr) != 1) | |
2680 | fatal ("%s: can't read loader section", soname); | |
2681 | /*fprintf (stderr, "\tscanning %s\n", soname);*/ | |
2682 | symcnt = soldh.l_nsyms; | |
ac1bc2ca | 2683 | lsyms = (LDSYM*) alloca (symcnt * sizeof *lsyms); |
1a8463c9 RK |
2684 | symcnt = FREAD (lsyms, sizeof *lsyms, symcnt, libptr); |
2685 | ldstrings = alloca (soldh.l_stlen); | |
2686 | FSEEK (libptr, soldsh.s_scnptr+soldh.l_stoff, BEGINNING); | |
2687 | FREAD (ldstrings, soldh.l_stlen, 1, libptr); | |
2688 | for (i = 0; i < symcnt; ++i) | |
2689 | { | |
2690 | LDSYM *l = lsyms + i; | |
2691 | if (LDR_EXPORT (*l)) | |
2692 | { | |
2693 | char *expname = 0; | |
2694 | if (l->l_zeroes) | |
2695 | expname = l->l_name; | |
2696 | else if (l->l_offset < soldh.l_stlen) | |
2697 | expname = ldstrings + l->l_offset; | |
2698 | switch (is_ctor_dtor (expname)) | |
2699 | { | |
2700 | case 3: | |
2701 | if (debug) | |
2702 | fprintf (stderr, "\t%s\n", expname); | |
2703 | add_to_list (&constructors, expname); | |
2704 | break; | |
2705 | ||
2706 | case 4: | |
2707 | add_to_list (&destructors, expname); | |
2708 | break; | |
2709 | ||
2710 | default: /* not a constructor or destructor */ | |
2711 | continue; | |
2712 | } | |
2713 | } | |
2714 | } | |
2715 | } | |
2716 | else | |
2717 | fprintf (stderr, "%s: type = %04X flags = %04X\n", | |
2718 | ah.ar_name, type, HEADER (libptr).f_flags); | |
2719 | } | |
2720 | while (ldclose (libptr) == FAILURE); | |
2721 | /* printf (stderr, "closed %s\n", soname); */ | |
2722 | } | |
2723 | } | |
2724 | } | |
2725 | #endif /* XCOFF_SCAN_LIBS */ | |
2726 | ||
ed5b9462 | 2727 | #endif /* OBJECT_FORMAT_COFF */ |
4e81a331 RS |
2728 | |
2729 | \f | |
2730 | /* | |
2731 | * OSF/rose specific stuff. | |
2732 | */ | |
2733 | ||
2734 | #ifdef OBJECT_FORMAT_ROSE | |
2735 | ||
2736 | /* Union of the various load commands */ | |
2737 | ||
2738 | typedef union load_union | |
2739 | { | |
2740 | ldc_header_t hdr; /* common header */ | |
2741 | load_cmd_map_command_t map; /* map indexing other load cmds */ | |
ed5b9462 | 2742 | interpreter_command_t iprtr; /* interpreter pathname */ |
4e81a331 RS |
2743 | strings_command_t str; /* load commands strings section */ |
2744 | region_command_t region; /* region load command */ | |
2745 | reloc_command_t reloc; /* relocation section */ | |
2746 | package_command_t pkg; /* package load command */ | |
2747 | symbols_command_t sym; /* symbol sections */ | |
2748 | entry_command_t ent; /* program start section */ | |
2749 | gen_info_command_t info; /* object information */ | |
2750 | func_table_command_t func; /* function constructors/destructors */ | |
2751 | } load_union_t; | |
2752 | ||
2753 | /* Structure to point to load command and data section in memory. */ | |
2754 | ||
2755 | typedef struct load_all | |
2756 | { | |
2757 | load_union_t *load; /* load command */ | |
2758 | char *section; /* pointer to section */ | |
2759 | } load_all_t; | |
2760 | ||
2761 | /* Structure to contain information about a file mapped into memory. */ | |
2762 | ||
2763 | struct file_info | |
2764 | { | |
2765 | char *start; /* start of map */ | |
2766 | char *name; /* filename */ | |
2767 | long size; /* size of the file */ | |
2768 | long rounded_size; /* size rounded to page boundary */ | |
2769 | int fd; /* file descriptor */ | |
2770 | int rw; /* != 0 if opened read/write */ | |
2771 | int use_mmap; /* != 0 if mmap'ed */ | |
2772 | }; | |
2773 | ||
ed5b9462 | 2774 | extern int decode_mach_o_hdr (); |
ed5b9462 | 2775 | extern int encode_mach_o_hdr (); |
4e81a331 | 2776 | |
4d1a011f RK |
2777 | static void add_func_table PROTO((mo_header_t *, load_all_t *, |
2778 | symbol_info_t *, int)); | |
2779 | static void print_header PROTO((mo_header_t *)); | |
2780 | static void print_load_command PROTO((load_union_t*, size_t, int)); | |
2781 | static void bad_header PROTO((int)); | |
357a98f1 | 2782 | static struct file_info *read_file PROTO((char *, int, int)); |
4d1a011f | 2783 | static void end_file PROTO((struct file_info *)); |
4e81a331 RS |
2784 | \f |
2785 | /* OSF/rose specific version to scan the name list of the loaded | |
2786 | program for the symbols g++ uses for static constructors and | |
2787 | destructors. | |
2788 | ||
2789 | The constructor table begins at __CTOR_LIST__ and contains a count | |
2790 | of the number of pointers (or -1 if the constructors are built in a | |
2791 | separate section by the linker), followed by the pointers to the | |
2792 | constructor functions, terminated with a null pointer. The | |
2793 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
2794 | ||
2795 | static void | |
2796 | scan_prog_file (prog_name, which_pass) | |
2797 | char *prog_name; | |
2798 | enum pass which_pass; | |
2799 | { | |
2800 | char *obj; | |
2801 | mo_header_t hdr; | |
2802 | load_all_t *load_array; | |
2803 | load_all_t *load_end; | |
2804 | load_all_t *load_cmd; | |
2805 | int symbol_load_cmds; | |
2806 | off_t offset; | |
2807 | int i; | |
2808 | int num_syms; | |
2809 | int status; | |
2810 | char *str_sect; | |
2811 | struct file_info *obj_file; | |
2812 | int prog_fd; | |
2813 | mo_lcid_t cmd_strings = -1; | |
2814 | symbol_info_t *main_sym = 0; | |
2815 | int rw = (which_pass != PASS_FIRST); | |
2816 | ||
2817 | prog_fd = open (prog_name, (rw) ? O_RDWR : O_RDONLY); | |
2818 | if (prog_fd < 0) | |
1fab8e81 | 2819 | fatal_perror ("can't read %s", prog_name); |
4e81a331 RS |
2820 | |
2821 | obj_file = read_file (prog_name, prog_fd, rw); | |
2822 | obj = obj_file->start; | |
2823 | ||
2824 | status = decode_mach_o_hdr (obj, MO_SIZEOF_RAW_HDR, MOH_HEADER_VERSION, &hdr); | |
2825 | if (status != MO_HDR_CONV_SUCCESS) | |
2826 | bad_header (status); | |
2827 | ||
2828 | ||
2829 | /* Do some basic sanity checks. Note we explicitly use the big endian magic number, | |
2830 | since the hardware will automatically swap bytes for us on loading little endian | |
2831 | integers. */ | |
2832 | ||
2833 | #ifndef CROSS_COMPILE | |
2834 | if (hdr.moh_magic != MOH_MAGIC_MSB | |
2835 | || hdr.moh_header_version != MOH_HEADER_VERSION | |
2836 | || hdr.moh_byte_order != OUR_BYTE_ORDER | |
2837 | || hdr.moh_data_rep_id != OUR_DATA_REP_ID | |
2838 | || hdr.moh_cpu_type != OUR_CPU_TYPE | |
2839 | || hdr.moh_cpu_subtype != OUR_CPU_SUBTYPE | |
2840 | || hdr.moh_vendor_type != OUR_VENDOR_TYPE) | |
2841 | { | |
1fab8e81 | 2842 | fatal ("incompatibilities between object file & expected values"); |
4e81a331 RS |
2843 | } |
2844 | #endif | |
2845 | ||
2846 | if (debug) | |
2847 | print_header (&hdr); | |
2848 | ||
2849 | offset = hdr.moh_first_cmd_off; | |
2850 | load_end = load_array | |
2851 | = (load_all_t *) xcalloc (sizeof (load_all_t), hdr.moh_n_load_cmds + 2); | |
2852 | ||
2853 | /* Build array of load commands, calculating the offsets */ | |
2854 | for (i = 0; i < hdr.moh_n_load_cmds; i++) | |
2855 | { | |
2856 | load_union_t *load_hdr; /* load command header */ | |
2857 | ||
2858 | load_cmd = load_end++; | |
2859 | load_hdr = (load_union_t *) (obj + offset); | |
2860 | ||
f72aed24 | 2861 | /* If modifying the program file, copy the header. */ |
4e81a331 RS |
2862 | if (rw) |
2863 | { | |
2864 | load_union_t *ptr = (load_union_t *) xmalloc (load_hdr->hdr.ldci_cmd_size); | |
4c9a05bc | 2865 | bcopy ((char *)load_hdr, (char *)ptr, load_hdr->hdr.ldci_cmd_size); |
4e81a331 RS |
2866 | load_hdr = ptr; |
2867 | ||
2868 | /* null out old command map, because we will rewrite at the end. */ | |
2869 | if (ptr->hdr.ldci_cmd_type == LDC_CMD_MAP) | |
2870 | { | |
2871 | cmd_strings = ptr->map.lcm_ld_cmd_strings; | |
2872 | ptr->hdr.ldci_cmd_type = LDC_UNDEFINED; | |
2873 | } | |
2874 | } | |
2875 | ||
2876 | load_cmd->load = load_hdr; | |
2877 | if (load_hdr->hdr.ldci_section_off > 0) | |
2878 | load_cmd->section = obj + load_hdr->hdr.ldci_section_off; | |
2879 | ||
2880 | if (debug) | |
2881 | print_load_command (load_hdr, offset, i); | |
2882 | ||
2883 | offset += load_hdr->hdr.ldci_cmd_size; | |
2884 | } | |
2885 | ||
2886 | /* If the last command is the load command map and is not undefined, | |
2887 | decrement the count of load commands. */ | |
2888 | if (rw && load_end[-1].load->hdr.ldci_cmd_type == LDC_UNDEFINED) | |
2889 | { | |
2890 | load_end--; | |
2891 | hdr.moh_n_load_cmds--; | |
2892 | } | |
2893 | ||
2894 | /* Go through and process each symbol table section. */ | |
2895 | symbol_load_cmds = 0; | |
2896 | for (load_cmd = load_array; load_cmd < load_end; load_cmd++) | |
2897 | { | |
2898 | load_union_t *load_hdr = load_cmd->load; | |
2899 | ||
2900 | if (load_hdr->hdr.ldci_cmd_type == LDC_SYMBOLS) | |
2901 | { | |
2902 | symbol_load_cmds++; | |
2903 | ||
2904 | if (debug) | |
2905 | { | |
ed5b9462 | 2906 | char *kind = "unknown"; |
4e81a331 RS |
2907 | |
2908 | switch (load_hdr->sym.symc_kind) | |
2909 | { | |
2910 | case SYMC_IMPORTS: kind = "imports"; break; | |
2911 | case SYMC_DEFINED_SYMBOLS: kind = "defined"; break; | |
2912 | case SYMC_STABS: kind = "stabs"; break; | |
2913 | } | |
2914 | ||
2915 | fprintf (stderr, "\nProcessing symbol table #%d, offset = 0x%.8lx, kind = %s\n", | |
2916 | symbol_load_cmds, load_hdr->hdr.ldci_section_off, kind); | |
2917 | } | |
2918 | ||
2919 | if (load_hdr->sym.symc_kind != SYMC_DEFINED_SYMBOLS) | |
2920 | continue; | |
2921 | ||
ed5b9462 | 2922 | str_sect = load_array[load_hdr->sym.symc_strings_section].section; |
4e81a331 RS |
2923 | if (str_sect == (char *)0) |
2924 | fatal ("string section missing"); | |
2925 | ||
2926 | if (load_cmd->section == (char *)0) | |
2927 | fatal ("section pointer missing"); | |
2928 | ||
2929 | num_syms = load_hdr->sym.symc_nentries; | |
2930 | for (i = 0; i < num_syms; i++) | |
2931 | { | |
2932 | symbol_info_t *sym = ((symbol_info_t *) load_cmd->section) + i; | |
2933 | char *name = sym->si_name.symbol_name + str_sect; | |
4e81a331 RS |
2934 | |
2935 | if (name[0] != '_') | |
2936 | continue; | |
2937 | ||
4e81a331 RS |
2938 | if (rw) |
2939 | { | |
d6cf3187 RS |
2940 | char *n = name + strlen (name) - strlen (NAME__MAIN); |
2941 | ||
2942 | if ((n - name) < 0 || strcmp (n, NAME__MAIN)) | |
4e81a331 | 2943 | continue; |
d6cf3187 RS |
2944 | while (n != name) |
2945 | if (*--n != '_') | |
2946 | continue; | |
4e81a331 RS |
2947 | |
2948 | main_sym = sym; | |
2949 | } | |
ed5b9462 | 2950 | else |
4e81a331 | 2951 | { |
ed5b9462 RS |
2952 | switch (is_ctor_dtor (name)) |
2953 | { | |
2954 | case 1: | |
2955 | add_to_list (&constructors, name); | |
2956 | break; | |
2957 | ||
2958 | case 2: | |
2959 | add_to_list (&destructors, name); | |
2960 | break; | |
2961 | ||
2962 | default: /* not a constructor or destructor */ | |
2963 | continue; | |
2964 | } | |
4e81a331 RS |
2965 | } |
2966 | ||
4e81a331 RS |
2967 | if (debug) |
2968 | fprintf (stderr, "\ttype = 0x%.4x, sc = 0x%.2x, flags = 0x%.8x, name = %.30s\n", | |
2969 | sym->si_type, sym->si_sc_type, sym->si_flags, name); | |
2970 | } | |
2971 | } | |
2972 | } | |
2973 | ||
2974 | if (symbol_load_cmds == 0) | |
1fab8e81 | 2975 | fatal ("no symbol table found"); |
4e81a331 RS |
2976 | |
2977 | /* Update the program file now, rewrite header and load commands. At present, | |
2978 | we assume that there is enough space after the last load command to insert | |
2979 | one more. Since the first section written out is page aligned, and the | |
2980 | number of load commands is small, this is ok for the present. */ | |
2981 | ||
2982 | if (rw) | |
2983 | { | |
2984 | load_union_t *load_map; | |
2985 | size_t size; | |
2986 | ||
2987 | if (cmd_strings == -1) | |
1fab8e81 RS |
2988 | fatal ("no cmd_strings found"); |
2989 | ||
2990 | /* Add __main to initializer list. | |
2991 | If we are building a program instead of a shared library, don't | |
2992 | do anything, since in the current version, you cannot do mallocs | |
2993 | and such in the constructors. */ | |
4e81a331 | 2994 | |
1fab8e81 RS |
2995 | if (main_sym != (symbol_info_t *)0 |
2996 | && ((hdr.moh_flags & MOH_EXECABLE_F) == 0)) | |
4e81a331 RS |
2997 | add_func_table (&hdr, load_array, main_sym, FNTC_INITIALIZATION); |
2998 | ||
2999 | if (debug) | |
3000 | fprintf (stderr, "\nUpdating header and load commands.\n\n"); | |
3001 | ||
3002 | hdr.moh_n_load_cmds++; | |
3003 | size = sizeof (load_cmd_map_command_t) + (sizeof (mo_offset_t) * (hdr.moh_n_load_cmds - 1)); | |
3004 | ||
3005 | /* Create new load command map. */ | |
3006 | if (debug) | |
3007 | fprintf (stderr, "load command map, %d cmds, new size %ld.\n", | |
3008 | (int)hdr.moh_n_load_cmds, (long)size); | |
3009 | ||
3010 | load_map = (load_union_t *) xcalloc (1, size); | |
3011 | load_map->map.ldc_header.ldci_cmd_type = LDC_CMD_MAP; | |
3012 | load_map->map.ldc_header.ldci_cmd_size = size; | |
3013 | load_map->map.lcm_ld_cmd_strings = cmd_strings; | |
3014 | load_map->map.lcm_nentries = hdr.moh_n_load_cmds; | |
3015 | load_array[hdr.moh_n_load_cmds-1].load = load_map; | |
3016 | ||
3017 | offset = hdr.moh_first_cmd_off; | |
3018 | for (i = 0; i < hdr.moh_n_load_cmds; i++) | |
3019 | { | |
3020 | load_map->map.lcm_map[i] = offset; | |
3021 | if (load_array[i].load->hdr.ldci_cmd_type == LDC_CMD_MAP) | |
3022 | hdr.moh_load_map_cmd_off = offset; | |
3023 | ||
3024 | offset += load_array[i].load->hdr.ldci_cmd_size; | |
3025 | } | |
3026 | ||
3027 | hdr.moh_sizeofcmds = offset - MO_SIZEOF_RAW_HDR; | |
3028 | ||
3029 | if (debug) | |
3030 | print_header (&hdr); | |
3031 | ||
3032 | /* Write header */ | |
3033 | status = encode_mach_o_hdr (&hdr, obj, MO_SIZEOF_RAW_HDR); | |
3034 | if (status != MO_HDR_CONV_SUCCESS) | |
3035 | bad_header (status); | |
3036 | ||
3037 | if (debug) | |
3038 | fprintf (stderr, "writing load commands.\n\n"); | |
3039 | ||
3040 | /* Write load commands */ | |
3041 | offset = hdr.moh_first_cmd_off; | |
3042 | for (i = 0; i < hdr.moh_n_load_cmds; i++) | |
3043 | { | |
3044 | load_union_t *load_hdr = load_array[i].load; | |
3045 | size_t size = load_hdr->hdr.ldci_cmd_size; | |
3046 | ||
3047 | if (debug) | |
3048 | print_load_command (load_hdr, offset, i); | |
3049 | ||
4c9a05bc | 3050 | bcopy ((char *)load_hdr, (char *)(obj + offset), size); |
4e81a331 RS |
3051 | offset += size; |
3052 | } | |
3053 | } | |
3054 | ||
3055 | end_file (obj_file); | |
3056 | ||
3057 | if (close (prog_fd)) | |
1fab8e81 | 3058 | fatal_perror ("closing %s", prog_name); |
4e81a331 RS |
3059 | |
3060 | if (debug) | |
3061 | fprintf (stderr, "\n"); | |
3062 | } | |
3063 | ||
3064 | \f | |
3065 | /* Add a function table to the load commands to call a function | |
ed5b9462 | 3066 | on initiation or termination of the process. */ |
4e81a331 RS |
3067 | |
3068 | static void | |
3069 | add_func_table (hdr_p, load_array, sym, type) | |
3070 | mo_header_t *hdr_p; /* pointer to global header */ | |
3071 | load_all_t *load_array; /* array of ptrs to load cmds */ | |
3072 | symbol_info_t *sym; /* pointer to symbol entry */ | |
3073 | int type; /* fntc_type value */ | |
3074 | { | |
3075 | /* Add a new load command. */ | |
3076 | int num_cmds = ++hdr_p->moh_n_load_cmds; | |
3077 | int load_index = num_cmds - 1; | |
3078 | size_t size = sizeof (func_table_command_t) + sizeof (mo_addr_t); | |
3079 | load_union_t *ptr = xcalloc (1, size); | |
3080 | load_all_t *load_cmd; | |
3081 | int i; | |
3082 | ||
3083 | /* Set the unresolved address bit in the header to force the loader to be | |
3084 | used, since kernel exec does not call the initialization functions. */ | |
3085 | hdr_p->moh_flags |= MOH_UNRESOLVED_F; | |
3086 | ||
3087 | load_cmd = &load_array[load_index]; | |
3088 | load_cmd->load = ptr; | |
3089 | load_cmd->section = (char *)0; | |
3090 | ||
3091 | /* Fill in func table load command. */ | |
3092 | ptr->func.ldc_header.ldci_cmd_type = LDC_FUNC_TABLE; | |
3093 | ptr->func.ldc_header.ldci_cmd_size = size; | |
3094 | ptr->func.ldc_header.ldci_section_off = 0; | |
3095 | ptr->func.ldc_header.ldci_section_len = 0; | |
3096 | ptr->func.fntc_type = type; | |
3097 | ptr->func.fntc_nentries = 1; | |
3098 | ||
3099 | /* copy address, turn it from abs. address to (region,offset) if necessary. */ | |
3100 | /* Is the symbol already expressed as (region, offset)? */ | |
3101 | if ((sym->si_flags & SI_ABSOLUTE_VALUE_F) == 0) | |
3102 | { | |
3103 | ptr->func.fntc_entry_loc[i].adr_lcid = sym->si_value.def_val.adr_lcid; | |
3104 | ptr->func.fntc_entry_loc[i].adr_sctoff = sym->si_value.def_val.adr_sctoff; | |
3105 | } | |
3106 | ||
3107 | /* If not, figure out which region it's in. */ | |
3108 | else | |
3109 | { | |
3110 | mo_vm_addr_t addr = sym->si_value.abs_val; | |
3111 | int found = 0; | |
3112 | ||
3113 | for (i = 0; i < load_index; i++) | |
3114 | { | |
3115 | if (load_array[i].load->hdr.ldci_cmd_type == LDC_REGION) | |
3116 | { | |
3117 | region_command_t *region_ptr = &load_array[i].load->region; | |
3118 | ||
3119 | if ((region_ptr->regc_flags & REG_ABS_ADDR_F) != 0 | |
3120 | && addr >= region_ptr->regc_addr.vm_addr | |
3121 | && addr <= region_ptr->regc_addr.vm_addr + region_ptr->regc_vm_size) | |
3122 | { | |
3123 | ptr->func.fntc_entry_loc[0].adr_lcid = i; | |
3124 | ptr->func.fntc_entry_loc[0].adr_sctoff = addr - region_ptr->regc_addr.vm_addr; | |
3125 | found++; | |
3126 | break; | |
3127 | } | |
3128 | } | |
3129 | } | |
3130 | ||
3131 | if (!found) | |
3132 | fatal ("could not convert 0x%l.8x into a region", addr); | |
3133 | } | |
3134 | ||
3135 | if (debug) | |
3136 | fprintf (stderr, | |
3137 | "%s function, region %d, offset = %ld (0x%.8lx)\n", | |
3138 | (type == FNTC_INITIALIZATION) ? "init" : "term", | |
3139 | (int)ptr->func.fntc_entry_loc[i].adr_lcid, | |
3140 | (long)ptr->func.fntc_entry_loc[i].adr_sctoff, | |
3141 | (long)ptr->func.fntc_entry_loc[i].adr_sctoff); | |
3142 | ||
3143 | } | |
3144 | ||
3145 | \f | |
3146 | /* Print the global header for an OSF/rose object. */ | |
3147 | ||
3148 | static void | |
3149 | print_header (hdr_ptr) | |
3150 | mo_header_t *hdr_ptr; | |
3151 | { | |
3152 | fprintf (stderr, "\nglobal header:\n"); | |
3153 | fprintf (stderr, "\tmoh_magic = 0x%.8lx\n", hdr_ptr->moh_magic); | |
3154 | fprintf (stderr, "\tmoh_major_version = %d\n", (int)hdr_ptr->moh_major_version); | |
3155 | fprintf (stderr, "\tmoh_minor_version = %d\n", (int)hdr_ptr->moh_minor_version); | |
3156 | fprintf (stderr, "\tmoh_header_version = %d\n", (int)hdr_ptr->moh_header_version); | |
3157 | fprintf (stderr, "\tmoh_max_page_size = %d\n", (int)hdr_ptr->moh_max_page_size); | |
3158 | fprintf (stderr, "\tmoh_byte_order = %d\n", (int)hdr_ptr->moh_byte_order); | |
3159 | fprintf (stderr, "\tmoh_data_rep_id = %d\n", (int)hdr_ptr->moh_data_rep_id); | |
3160 | fprintf (stderr, "\tmoh_cpu_type = %d\n", (int)hdr_ptr->moh_cpu_type); | |
3161 | fprintf (stderr, "\tmoh_cpu_subtype = %d\n", (int)hdr_ptr->moh_cpu_subtype); | |
3162 | fprintf (stderr, "\tmoh_vendor_type = %d\n", (int)hdr_ptr->moh_vendor_type); | |
3163 | fprintf (stderr, "\tmoh_load_map_cmd_off = %d\n", (int)hdr_ptr->moh_load_map_cmd_off); | |
3164 | fprintf (stderr, "\tmoh_first_cmd_off = %d\n", (int)hdr_ptr->moh_first_cmd_off); | |
3165 | fprintf (stderr, "\tmoh_sizeofcmds = %d\n", (int)hdr_ptr->moh_sizeofcmds); | |
3166 | fprintf (stderr, "\tmon_n_load_cmds = %d\n", (int)hdr_ptr->moh_n_load_cmds); | |
3167 | fprintf (stderr, "\tmoh_flags = 0x%.8lx", (long)hdr_ptr->moh_flags); | |
3168 | ||
3169 | if (hdr_ptr->moh_flags & MOH_RELOCATABLE_F) | |
3170 | fprintf (stderr, ", relocatable"); | |
3171 | ||
3172 | if (hdr_ptr->moh_flags & MOH_LINKABLE_F) | |
3173 | fprintf (stderr, ", linkable"); | |
3174 | ||
3175 | if (hdr_ptr->moh_flags & MOH_EXECABLE_F) | |
3176 | fprintf (stderr, ", execable"); | |
3177 | ||
3178 | if (hdr_ptr->moh_flags & MOH_EXECUTABLE_F) | |
3179 | fprintf (stderr, ", executable"); | |
3180 | ||
3181 | if (hdr_ptr->moh_flags & MOH_UNRESOLVED_F) | |
3182 | fprintf (stderr, ", unresolved"); | |
3183 | ||
3184 | fprintf (stderr, "\n\n"); | |
3185 | return; | |
3186 | } | |
3187 | ||
3188 | \f | |
3189 | /* Print a short summary of a load command. */ | |
3190 | ||
3191 | static void | |
3192 | print_load_command (load_hdr, offset, number) | |
3193 | load_union_t *load_hdr; | |
3194 | size_t offset; | |
3195 | int number; | |
3196 | { | |
3197 | mo_long_t type = load_hdr->hdr.ldci_cmd_type; | |
3198 | char *type_str = (char *)0; | |
3199 | ||
3200 | switch (type) | |
3201 | { | |
3202 | case LDC_UNDEFINED: type_str = "UNDEFINED"; break; | |
3203 | case LDC_CMD_MAP: type_str = "CMD_MAP"; break; | |
3204 | case LDC_INTERPRETER: type_str = "INTERPRETER"; break; | |
3205 | case LDC_STRINGS: type_str = "STRINGS"; break; | |
3206 | case LDC_REGION: type_str = "REGION"; break; | |
3207 | case LDC_RELOC: type_str = "RELOC"; break; | |
3208 | case LDC_PACKAGE: type_str = "PACKAGE"; break; | |
3209 | case LDC_SYMBOLS: type_str = "SYMBOLS"; break; | |
3210 | case LDC_ENTRY: type_str = "ENTRY"; break; | |
3211 | case LDC_FUNC_TABLE: type_str = "FUNC_TABLE"; break; | |
3212 | case LDC_GEN_INFO: type_str = "GEN_INFO"; break; | |
3213 | } | |
3214 | ||
3215 | fprintf (stderr, | |
3216 | "cmd %2d, sz: 0x%.2lx, coff: 0x%.3lx, doff: 0x%.6lx, dlen: 0x%.6lx", | |
3217 | number, | |
3218 | (long) load_hdr->hdr.ldci_cmd_size, | |
3219 | (long) offset, | |
3220 | (long) load_hdr->hdr.ldci_section_off, | |
3221 | (long) load_hdr->hdr.ldci_section_len); | |
3222 | ||
3223 | if (type_str == (char *)0) | |
3224 | fprintf (stderr, ", ty: unknown (%ld)\n", (long) type); | |
3225 | ||
3226 | else if (type != LDC_REGION) | |
3227 | fprintf (stderr, ", ty: %s\n", type_str); | |
3228 | ||
3229 | else | |
3230 | { | |
3231 | char *region = ""; | |
3232 | switch (load_hdr->region.regc_usage_type) | |
3233 | { | |
3234 | case REG_TEXT_T: region = ", .text"; break; | |
3235 | case REG_DATA_T: region = ", .data"; break; | |
3236 | case REG_BSS_T: region = ", .bss"; break; | |
3237 | case REG_GLUE_T: region = ", .glue"; break; | |
3238 | #if defined (REG_RDATA_T) && defined (REG_SDATA_T) && defined (REG_SBSS_T) /*mips*/ | |
3239 | case REG_RDATA_T: region = ", .rdata"; break; | |
3240 | case REG_SDATA_T: region = ", .sdata"; break; | |
3241 | case REG_SBSS_T: region = ", .sbss"; break; | |
3242 | #endif | |
3243 | } | |
3244 | ||
3245 | fprintf (stderr, ", ty: %s, vaddr: 0x%.8lx, vlen: 0x%.6lx%s\n", | |
3246 | type_str, | |
3247 | (long) load_hdr->region.regc_vm_addr, | |
3248 | (long) load_hdr->region.regc_vm_size, | |
3249 | region); | |
3250 | } | |
3251 | ||
3252 | return; | |
3253 | } | |
3254 | ||
3255 | \f | |
3256 | /* Fatal error when {en,de}code_mach_o_header fails. */ | |
3257 | ||
3258 | static void | |
3259 | bad_header (status) | |
3260 | int status; | |
3261 | { | |
3262 | char *msg = (char *)0; | |
3263 | ||
3264 | switch (status) | |
3265 | { | |
3266 | case MO_ERROR_BAD_MAGIC: msg = "bad magic number"; break; | |
3267 | case MO_ERROR_BAD_HDR_VERS: msg = "bad header version"; break; | |
3268 | case MO_ERROR_BAD_RAW_HDR_VERS: msg = "bad raw header version"; break; | |
3269 | case MO_ERROR_BUF2SML: msg = "raw header buffer too small"; break; | |
3270 | case MO_ERROR_OLD_RAW_HDR_FILE: msg = "old raw header file"; break; | |
3271 | case MO_ERROR_UNSUPPORTED_VERS: msg = "unsupported version"; break; | |
3272 | } | |
3273 | ||
3274 | if (msg == (char *)0) | |
3275 | fatal ("unknown {de,en}code_mach_o_hdr return value %d", status); | |
3276 | else | |
3277 | fatal ("%s", msg); | |
3278 | } | |
3279 | ||
3280 | \f | |
3281 | /* Read a file into a memory buffer. */ | |
3282 | ||
3283 | static struct file_info * | |
3284 | read_file (name, fd, rw) | |
3285 | char *name; /* filename */ | |
3286 | int fd; /* file descriptor */ | |
3287 | int rw; /* read/write */ | |
3288 | { | |
3289 | struct stat stat_pkt; | |
3290 | struct file_info *p = (struct file_info *) xcalloc (sizeof (struct file_info), 1); | |
3291 | #ifdef USE_MMAP | |
3292 | static int page_size; | |
3293 | #endif | |
3294 | ||
3295 | if (fstat (fd, &stat_pkt) < 0) | |
3296 | fatal_perror ("fstat %s", name); | |
3297 | ||
3298 | p->name = name; | |
3299 | p->size = stat_pkt.st_size; | |
3300 | p->rounded_size = stat_pkt.st_size; | |
3301 | p->fd = fd; | |
3302 | p->rw = rw; | |
3303 | ||
3304 | #ifdef USE_MMAP | |
3305 | if (debug) | |
3306 | fprintf (stderr, "mmap %s, %s\n", name, (rw) ? "read/write" : "read-only"); | |
3307 | ||
3308 | if (page_size == 0) | |
3309 | page_size = sysconf (_SC_PAGE_SIZE); | |
3310 | ||
3311 | p->rounded_size = ((p->size + page_size - 1) / page_size) * page_size; | |
3312 | p->start = mmap ((caddr_t)0, | |
3313 | (rw) ? p->rounded_size : p->size, | |
3314 | (rw) ? (PROT_READ | PROT_WRITE) : PROT_READ, | |
3315 | MAP_FILE | MAP_VARIABLE | MAP_SHARED, | |
3316 | fd, | |
3317 | 0L); | |
3318 | ||
3319 | if (p->start != (char *)0 && p->start != (char *)-1) | |
3320 | p->use_mmap = 1; | |
3321 | ||
3322 | else | |
3323 | #endif /* USE_MMAP */ | |
3324 | { | |
3325 | long len; | |
3326 | ||
3327 | if (debug) | |
3328 | fprintf (stderr, "read %s\n", name); | |
3329 | ||
3330 | p->use_mmap = 0; | |
3331 | p->start = xmalloc (p->size); | |
3332 | if (lseek (fd, 0L, SEEK_SET) < 0) | |
3333 | fatal_perror ("lseek to 0 on %s", name); | |
3334 | ||
3335 | len = read (fd, p->start, p->size); | |
3336 | if (len < 0) | |
3337 | fatal_perror ("read %s", name); | |
3338 | ||
3339 | if (len != p->size) | |
3340 | fatal ("read %ld bytes, expected %ld, from %s", len, p->size, name); | |
3341 | } | |
3342 | ||
3343 | return p; | |
3344 | } | |
4e81a331 RS |
3345 | \f |
3346 | /* Do anything necessary to write a file back from memory. */ | |
3347 | ||
3348 | static void | |
3349 | end_file (ptr) | |
3350 | struct file_info *ptr; /* file information block */ | |
3351 | { | |
3352 | #ifdef USE_MMAP | |
3353 | if (ptr->use_mmap) | |
3354 | { | |
3355 | if (ptr->rw) | |
3356 | { | |
3357 | if (debug) | |
3358 | fprintf (stderr, "msync %s\n", ptr->name); | |
3359 | ||
3360 | if (msync (ptr->start, ptr->rounded_size, MS_ASYNC)) | |
3361 | fatal_perror ("msync %s", ptr->name); | |
3362 | } | |
3363 | ||
3364 | if (debug) | |
3365 | fprintf (stderr, "munmap %s\n", ptr->name); | |
3366 | ||
3367 | if (munmap (ptr->start, ptr->size)) | |
3368 | fatal_perror ("munmap %s", ptr->name); | |
3369 | } | |
3370 | else | |
3371 | #endif /* USE_MMAP */ | |
3372 | { | |
3373 | if (ptr->rw) | |
3374 | { | |
3375 | long len; | |
3376 | ||
3377 | if (debug) | |
3378 | fprintf (stderr, "write %s\n", ptr->name); | |
3379 | ||
3380 | if (lseek (ptr->fd, 0L, SEEK_SET) < 0) | |
3381 | fatal_perror ("lseek to 0 on %s", ptr->name); | |
3382 | ||
3383 | len = write (ptr->fd, ptr->start, ptr->size); | |
3384 | if (len < 0) | |
47d1946b | 3385 | fatal_perror ("write %s", ptr->name); |
4e81a331 RS |
3386 | |
3387 | if (len != ptr->size) | |
3388 | fatal ("wrote %ld bytes, expected %ld, to %s", len, ptr->size, ptr->name); | |
3389 | } | |
3390 | ||
a3184468 | 3391 | free (ptr->start); |
4e81a331 RS |
3392 | } |
3393 | ||
a3184468 | 3394 | free (ptr); |
4e81a331 RS |
3395 | } |
3396 | ||
3397 | #endif /* OBJECT_FORMAT_ROSE */ |