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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 | ||
5 | Copyright (C) 1992 Free Software Foundation, Inc. | |
6 | Contributed by Chris Smith (csmith@convex.com). | |
7 | Heavily modified by Michael Meissner (meissner@osf.org), | |
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 | |
24 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
25 | ||
26 | ||
27 | /* Build tables of static constructors and destructors and run ld. */ | |
28 | ||
29 | #include <sys/types.h> | |
30 | #include <stdio.h> | |
31 | #include <string.h> | |
4e81a331 | 32 | #include <ctype.h> |
4e81a331 RS |
33 | #include <errno.h> |
34 | #include <signal.h> | |
35 | #include <sys/file.h> | |
36 | #include <sys/stat.h> | |
37 | #include <sys/wait.h> | |
38 | ||
ed5b9462 RS |
39 | #ifndef errno |
40 | extern int errno; | |
41 | #endif | |
42 | ||
4e81a331 RS |
43 | #define COLLECT |
44 | ||
45 | #include "config.h" | |
46 | ||
47 | #ifndef __STDC__ | |
48 | #include "gvarargs.h" | |
49 | #define generic char | |
4e81a331 RS |
50 | #define const |
51 | ||
52 | #else | |
ed5b9462 | 53 | #include "gstdarg.h" |
4e81a331 | 54 | #define generic void |
4e81a331 RS |
55 | #endif |
56 | ||
ed5b9462 RS |
57 | #ifdef USG |
58 | #define vfork fork | |
59 | #endif | |
60 | ||
61 | #ifndef R_OK | |
62 | #define R_OK 4 | |
63 | #define W_OK 2 | |
64 | #define X_OK 1 | |
65 | #endif | |
66 | ||
67 | /* On MSDOS, write temp files in current dir | |
68 | because there's no place else we can expect to use. */ | |
69 | #if __MSDOS__ | |
70 | #ifndef P_tmpdir | |
71 | #define P_tmpdir "./" | |
72 | #endif | |
73 | #endif | |
74 | \f | |
75 | /* On certain systems, we have code that works by scanning the object file | |
76 | directly. But this code uses system-specific header files and library | |
77 | functions, so turn it off in a cross-compiler. */ | |
78 | ||
79 | #ifdef CROSS_COMPILE | |
80 | #undef OBJECT_FORMAT_COFF | |
81 | #undef OBJECT_FORMAT_ROSE | |
82 | #endif | |
83 | ||
84 | /* If we can't use a special method, use the ordinary one: | |
85 | run nm to find what symbols are present. | |
86 | In a cross-compiler, this means you need a cross nm, | |
87 | but that isn't quite as unpleasant as special headers. */ | |
88 | ||
89 | #if !defined (OBJECT_FORMAT_COFF) && !defined (OBJECT_FORMAT_ROSE) | |
90 | #define OBJECT_FORMAT_NONE | |
91 | #endif | |
92 | ||
93 | #ifdef OBJECT_FORMAT_COFF | |
94 | ||
95 | #include <a.out.h> | |
96 | #include <ar.h> | |
97 | ||
98 | #ifdef UMAX | |
99 | #include <sgs.h> | |
100 | #endif | |
101 | ||
102 | #ifdef _AIX | |
103 | #define ISCOFF(magic) \ | |
104 | ((magic) == U802WRMAGIC || (magic) == U802ROMAGIC || (magic) == U802TOCMAGIC) | |
105 | #endif | |
106 | ||
107 | #if defined (_AIX) || defined (USG) | |
108 | #undef FREAD | |
109 | #undef FWRITE | |
110 | #endif | |
111 | ||
112 | #include <ldfcn.h> | |
113 | ||
114 | #endif /* OBJECT_FORMAT_COFF */ | |
115 | ||
4e81a331 RS |
116 | #ifdef OBJECT_FORMAT_ROSE |
117 | ||
118 | #ifdef _OSF_SOURCE | |
119 | #define USE_MMAP | |
120 | #endif | |
121 | ||
122 | #ifdef USE_MMAP | |
123 | #include <sys/mman.h> | |
124 | #endif | |
125 | ||
126 | #include <unistd.h> | |
127 | #include <mach_o_format.h> | |
128 | #include <mach_o_header.h> | |
129 | #include <mach_o_vals.h> | |
130 | #include <mach_o_types.h> | |
ed5b9462 | 131 | |
4e81a331 RS |
132 | #endif /* OBJECT_FORMAT_ROSE */ |
133 | ||
ed5b9462 RS |
134 | #ifdef OBJECT_FORMAT_NONE |
135 | ||
4e81a331 RS |
136 | /* Default flags to pass to nm. */ |
137 | #ifndef NM_FLAGS | |
138 | #define NM_FLAGS "-p" | |
139 | #endif | |
140 | ||
ed5b9462 | 141 | #endif /* OBJECT_FORMAT_NONE */ |
4e81a331 RS |
142 | \f |
143 | /* Linked lists of constructor and destructor names. */ | |
144 | ||
145 | struct id | |
146 | { | |
147 | struct id *next; | |
148 | int sequence; | |
149 | char name[1]; | |
150 | }; | |
151 | ||
152 | struct head | |
153 | { | |
154 | struct id *first; | |
155 | struct id *last; | |
156 | int number; | |
157 | }; | |
158 | ||
159 | /* Enumeration giving which pass this is for scanning the program file. */ | |
160 | ||
161 | enum pass { | |
162 | PASS_FIRST, /* without constructors */ | |
163 | PASS_SECOND /* with constructors linked in */ | |
164 | }; | |
165 | ||
ed5b9462 | 166 | #ifndef NO_SYS_SIGLIST |
4e81a331 | 167 | extern char *sys_siglist[]; |
ed5b9462 | 168 | #endif |
4e81a331 RS |
169 | extern char *version_string; |
170 | ||
171 | static int vflag; /* true if -v */ | |
172 | static int rflag; /* true if -r */ | |
173 | ||
174 | static int debug; /* true if -debug */ | |
175 | ||
176 | static int temp_filename_length; /* Length of temp_filename */ | |
177 | static char *temp_filename; /* Base of temp filenames */ | |
178 | static char *c_file; /* <xxx>.c for constructor/destructor list. */ | |
179 | static char *o_file; /* <xxx>.o for constructor/destructor list. */ | |
180 | static char *nm_file_name; /* pathname of nm */ | |
181 | ||
182 | static struct head constructors; /* list of constructors found */ | |
183 | static struct head destructors; /* list of destructors found */ | |
184 | ||
ed5b9462 RS |
185 | extern char *getenv (); |
186 | extern char *mktemp (); | |
187 | extern int vfork (); | |
188 | static void add_to_list (); | |
189 | static void scan_prog_file (); | |
190 | static void fork_execute (); | |
191 | static void do_wait (); | |
192 | static void write_c_file (); | |
193 | static void my_exit (); | |
194 | static void handler (); | |
195 | static void maybe_unlink (); | |
196 | static void choose_temp_base (); | |
197 | ||
198 | generic *xcalloc (); | |
199 | generic *xmalloc (); | |
4e81a331 RS |
200 | \f |
201 | ||
202 | #if !defined(HAVE_STRERROR) && !defined(_OSF_SOURCE) | |
203 | ||
ed5b9462 RS |
204 | char * |
205 | strerror (e) | |
4e81a331 RS |
206 | int e; |
207 | { | |
208 | extern char *sys_errlist[]; | |
209 | extern int sys_nerr; | |
210 | static char buffer[30]; | |
211 | ||
212 | if (!e) | |
213 | return ""; | |
214 | ||
215 | if (e > 0 && e < sys_nerr) | |
216 | return sys_errlist[e]; | |
217 | ||
218 | sprintf (buffer, "Unknown error %d", e); | |
219 | return buffer; | |
220 | } | |
221 | ||
222 | #endif | |
223 | ||
224 | \f | |
225 | /* Delete tempfiles and exit function. */ | |
226 | ||
227 | static void | |
228 | my_exit (status) | |
229 | int status; | |
230 | { | |
ed5b9462 | 231 | if (c_file != 0 && c_file[0]) |
4e81a331 RS |
232 | maybe_unlink (c_file); |
233 | ||
ed5b9462 | 234 | if (o_file != 0 && o_file[0]) |
4e81a331 RS |
235 | maybe_unlink (o_file); |
236 | ||
237 | exit (status); | |
238 | } | |
239 | ||
240 | \f | |
241 | #ifndef __STDC__ | |
242 | ||
243 | /* Die when sys call fails. */ | |
244 | ||
245 | /*VARARGS*/ | |
246 | static void | |
247 | fatal_perror (va_alist) | |
248 | { | |
249 | char *string; | |
250 | va_list vptr; | |
251 | int e = errno; | |
252 | ||
253 | va_start (vptr); | |
254 | string = va_arg (vptr, char *); | |
255 | fprintf (stderr, "collect: "); | |
256 | vfprintf (stderr, string, vptr); | |
257 | fprintf (stderr, ": %s\n", strerror (e)); | |
258 | va_end (vptr); | |
259 | my_exit (1); | |
260 | } | |
261 | ||
262 | /* Just die. */ | |
263 | ||
264 | /*VARARGS*/ | |
265 | static void | |
266 | fatal (va_alist) | |
267 | { | |
268 | char *string; | |
269 | va_list vptr; | |
270 | ||
271 | va_start (vptr); | |
272 | string = va_arg (vptr, char *); | |
273 | fprintf (stderr, "collect: "); | |
274 | vfprintf (stderr, string, vptr); | |
275 | fprintf (stderr, "\n"); | |
276 | va_end (vptr); | |
277 | my_exit (1); | |
278 | } | |
279 | ||
280 | /* Write error message. */ | |
281 | ||
282 | /*VARARGS*/ | |
283 | static void | |
284 | error (va_alist) | |
285 | { | |
286 | char *string; | |
287 | va_list vptr; | |
288 | ||
289 | va_start (vptr); | |
290 | string = va_arg (vptr, char *); | |
291 | fprintf (stderr, "collect: "); | |
292 | vfprintf (stderr, string, vptr); | |
293 | fprintf (stderr, "\n"); | |
294 | va_end (vptr); | |
295 | } | |
296 | ||
297 | #else | |
298 | ||
299 | static void | |
300 | fatal_perror (char *string, ...) | |
301 | { | |
302 | va_list vptr; | |
303 | int e = errno; | |
304 | ||
305 | va_start (vptr, string); | |
306 | fprintf (stderr, "collect: "); | |
307 | vfprintf (stderr, string, vptr); | |
308 | fprintf (stderr, ": %s\n", strerror (e)); | |
309 | va_end (vptr); | |
310 | my_exit (1); | |
311 | } | |
312 | ||
313 | /* Just die. */ | |
314 | ||
315 | static void | |
316 | fatal (char *string, ...) | |
317 | { | |
318 | va_list vptr; | |
319 | ||
320 | va_start (vptr, string); | |
321 | fprintf (stderr, "collect: "); | |
322 | vfprintf (stderr, string, vptr); | |
323 | fprintf (stderr, "\n"); | |
324 | va_end (vptr); | |
325 | my_exit (1); | |
326 | } | |
327 | ||
328 | /* Write error message. */ | |
329 | ||
330 | static void | |
331 | error (char *string, ...) | |
332 | { | |
333 | va_list vptr; | |
334 | ||
335 | va_start (vptr, string); | |
336 | fprintf (stderr, "collect: "); | |
337 | vfprintf (stderr, string, vptr); | |
338 | fprintf (stderr, "\n"); | |
339 | va_end (vptr); | |
340 | } | |
341 | #endif | |
342 | ||
343 | \f | |
344 | /* In case obstack is linked in, and abort is defined to fancy_abort, | |
345 | provide a default entry. */ | |
346 | ||
347 | void | |
348 | fancy_abort () | |
349 | { | |
350 | fatal ("internal error"); | |
351 | } | |
352 | ||
353 | \f | |
354 | static void | |
355 | handler (signo) | |
356 | int signo; | |
357 | { | |
358 | if (c_file[0]) | |
359 | maybe_unlink (c_file); | |
360 | ||
361 | if (o_file[0]) | |
362 | maybe_unlink (o_file); | |
363 | ||
364 | signal (signo, SIG_DFL); | |
4e81a331 RS |
365 | kill (getpid (), signo); |
366 | } | |
367 | ||
368 | \f | |
369 | generic * | |
370 | xcalloc (size1, size2) | |
ed5b9462 | 371 | int size1, size2; |
4e81a331 | 372 | { |
ed5b9462 | 373 | generic *ptr = (generic *) calloc (size1, size2); |
4e81a331 RS |
374 | if (ptr) |
375 | return ptr; | |
376 | ||
377 | fatal ("Out of memory."); | |
378 | return (generic *)0; | |
379 | } | |
380 | ||
381 | generic * | |
382 | xmalloc (size) | |
ed5b9462 | 383 | int size; |
4e81a331 | 384 | { |
ed5b9462 | 385 | generic *ptr = (generic *) malloc (size); |
4e81a331 RS |
386 | if (ptr) |
387 | return ptr; | |
388 | ||
389 | fatal ("Out of memory."); | |
390 | return (generic *)0; | |
391 | } | |
392 | ||
ed5b9462 RS |
393 | /* Make a copy of a string INPUT with size SIZE. */ |
394 | ||
395 | char * | |
396 | savestring (input, size) | |
397 | char *input; | |
398 | int size; | |
399 | { | |
400 | char *output = (char *) xmalloc (size + 1); | |
401 | strcpy (output, input); | |
402 | return output; | |
403 | } | |
404 | \f | |
405 | /* Decide whether the given symbol is: | |
406 | a constructor (1), a destructor (2), or neither (0). */ | |
407 | ||
408 | static int | |
409 | is_ctor_dtor (s) | |
410 | char *s; | |
411 | { | |
412 | struct names { char *name; int len; int ret; int two_underscores; }; | |
413 | ||
414 | register struct names *p; | |
415 | register int ch; | |
416 | register char *orig_s = s; | |
417 | ||
418 | static struct names special[] = { | |
419 | #ifdef NO_DOLLAR_IN_LABEL | |
420 | { "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 }, | |
421 | { "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 }, | |
422 | #else | |
423 | { "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 }, | |
424 | { "GLOBAL_$D$", sizeof ("GLOBAL_$I$")-1, 2, 0 }, | |
425 | #endif | |
426 | { "sti__", sizeof ("sti__")-1, 1, 1 }, | |
427 | { "std__", sizeof ("std__")-1, 2, 1 }, | |
428 | { NULL, 0, 0, 0 } | |
429 | }; | |
430 | ||
431 | while ((ch = *s) == '_') | |
432 | ++s; | |
433 | ||
434 | if (s == orig_s) | |
435 | return 0; | |
436 | ||
437 | for (p = &special[0]; p->len > 0; p++) | |
438 | { | |
439 | if (ch == p->name[0] | |
440 | && (!p->two_underscores || ((s - orig_s) >= 2)) | |
441 | && strncmp(s, p->name, p->len) == 0) | |
442 | { | |
443 | return p->ret; | |
444 | } | |
445 | } | |
446 | return 0; | |
447 | } | |
448 | ||
4e81a331 RS |
449 | \f |
450 | /* Compute a string to use as the base of all temporary file names. | |
451 | It is substituted for %g. */ | |
452 | ||
453 | static void | |
ed5b9462 | 454 | choose_temp_base () |
4e81a331 RS |
455 | { |
456 | char *base = getenv ("TMPDIR"); | |
457 | int len; | |
458 | ||
459 | if (base == (char *)0) | |
460 | { | |
461 | #ifdef P_tmpdir | |
462 | if (access (P_tmpdir, R_OK | W_OK) == 0) | |
463 | base = P_tmpdir; | |
464 | #endif | |
465 | if (base == (char *)0) | |
466 | { | |
467 | if (access ("/usr/tmp", R_OK | W_OK) == 0) | |
468 | base = "/usr/tmp/"; | |
469 | else | |
470 | base = "/tmp/"; | |
471 | } | |
472 | } | |
473 | ||
474 | len = strlen (base); | |
475 | temp_filename = xmalloc (len + sizeof("/ccXXXXXX")); | |
476 | strcpy (temp_filename, base); | |
477 | if (len > 0 && temp_filename[len-1] != '/') | |
478 | temp_filename[len++] = '/'; | |
479 | strcpy (temp_filename + len, "ccXXXXXX"); | |
480 | ||
481 | mktemp (temp_filename); | |
482 | temp_filename_length = strlen (temp_filename); | |
483 | } | |
484 | ||
485 | \f | |
486 | /* Main program. */ | |
487 | ||
488 | int | |
489 | main (argc, argv) | |
490 | int argc; | |
491 | char *argv[]; | |
492 | { | |
493 | char *outfile = "a.out"; | |
494 | char *arg; | |
495 | FILE *outf; | |
496 | char *ld_file_name; | |
497 | char *c_file_name; | |
4e81a331 RS |
498 | char *p; |
499 | char *prefix; | |
ed5b9462 RS |
500 | char **c_argv; |
501 | char **c_ptr; | |
4e81a331 RS |
502 | char **ld1_argv = (char **) xcalloc (sizeof (char *), argc+2); |
503 | char **ld1 = ld1_argv; | |
504 | char **ld2_argv = (char **) xcalloc (sizeof (char *), argc+5); | |
505 | char **ld2 = ld2_argv; | |
506 | int first_file; | |
ed5b9462 | 507 | int num_c_args = argc+7; |
4e81a331 RS |
508 | int len; |
509 | int clen; | |
510 | ||
511 | #ifdef DEBUG | |
512 | debug = 1; | |
513 | vflag = 1; | |
514 | #endif | |
515 | ||
ed5b9462 RS |
516 | p = (char *) getenv ("COLLECT_GCC_OPTIONS"); |
517 | if (p) | |
518 | while (*p) | |
519 | { | |
520 | char *q = p; | |
521 | while (*q && *q != ' ') q++; | |
522 | if (*p == '-' && (p[1] == 'm' || p[1] == 'f')) | |
523 | num_c_args++; | |
524 | ||
525 | if (*q) q++; | |
526 | p = q; | |
527 | } | |
528 | ||
529 | c_ptr = c_argv = (char **) xcalloc (sizeof (char *), num_c_args); | |
530 | ||
4e81a331 RS |
531 | if (argc < 2) |
532 | fatal ("no arguments"); | |
533 | ||
534 | signal (SIGQUIT, handler); | |
535 | signal (SIGINT, handler); | |
536 | signal (SIGALRM, handler); | |
537 | signal (SIGHUP, handler); | |
538 | signal (SIGSEGV, handler); | |
539 | signal (SIGBUS, handler); | |
540 | ||
541 | /* Try to discover a valid linker/assembler/nm to use. */ | |
542 | len = strlen (argv[0]); | |
543 | prefix = (char *)0; | |
544 | if (len >= sizeof ("ld")-1) | |
545 | { | |
546 | p = argv[0] + len - sizeof ("ld") + 1; | |
547 | if (strcmp (p, "ld") == 0) | |
548 | { | |
549 | prefix = argv[0]; | |
550 | *p = '\0'; | |
551 | } | |
552 | } | |
553 | ||
554 | if (prefix == (char *)0) | |
555 | { | |
556 | p = strrchr (argv[0], '/'); | |
557 | if (p != (char *)0) | |
558 | { | |
559 | prefix = argv[0]; | |
560 | p[1] = '\0'; | |
561 | } | |
562 | ||
563 | #ifdef STANDARD_EXEC_PREFIX | |
564 | else if (access (STANDARD_EXEC_PREFIX, X_OK) == 0) | |
565 | prefix = STANDARD_EXEC_PREFIX; | |
566 | #endif | |
567 | ||
568 | #ifdef MD_EXEC_PREFIX | |
569 | else if (access (MD_EXEC_PREFIX, X_OK) == 0) | |
570 | prefix = MD_EXEC_PREFIX; | |
571 | #endif | |
572 | ||
573 | else if (access ("/usr/ccs/gcc", X_OK) == 0) | |
574 | prefix = "/usr/ccs/gcc/"; | |
575 | ||
576 | else if (access ("/usr/ccs/bin", X_OK) == 0) | |
577 | prefix = "/usr/ccs/bin/"; | |
578 | ||
579 | else | |
580 | prefix = "/bin/"; | |
581 | } | |
582 | ||
583 | clen = len = strlen (prefix); | |
584 | ||
585 | #ifdef STANDARD_BIN_PREFIX | |
586 | if (clen < sizeof (STANDARD_BIN_PREFIX) - 1) | |
587 | clen = sizeof (STANDARD_BIN_PREFIX) - 1; | |
588 | #endif | |
589 | ||
590 | ld_file_name = xcalloc (len + sizeof ("real-ld"), 1); | |
4e81a331 | 591 | nm_file_name = xcalloc (len + sizeof ("gnm"), 1); |
4e81a331 RS |
592 | |
593 | memcpy (ld_file_name, prefix, len); | |
594 | strcpy (ld_file_name + len, "real-ld"); | |
595 | if (access (ld_file_name, X_OK) < 0) | |
596 | { | |
597 | strcpy (ld_file_name + len, "gld"); | |
598 | if (access (ld_file_name, X_OK) < 0) | |
599 | { | |
600 | free (ld_file_name); | |
601 | #ifdef REAL_LD_FILE_NAME | |
602 | ld_file_name = REAL_LD_FILE_NAME; | |
603 | #else | |
604 | ld_file_name = (access ("/usr/bin/ld", X_OK) == 0) ? "/usr/bin/ld" : "/bin/ld"; | |
605 | #endif | |
606 | } | |
607 | } | |
608 | ||
ed5b9462 RS |
609 | c_file_name = getenv ("COLLECT_GCC"); |
610 | if (c_file_name == 0 || c_file_name[0] != '/') | |
4e81a331 | 611 | { |
ed5b9462 RS |
612 | c_file_name = xcalloc (clen + sizeof ("gcc"), 1); |
613 | memcpy (c_file_name, prefix, len); | |
614 | strcpy (c_file_name + len, "gcc"); | |
4e81a331 | 615 | if (access (c_file_name, X_OK) < 0) |
4e81a331 | 616 | { |
ed5b9462 RS |
617 | #ifdef STANDARD_BIN_PREFIX |
618 | strcpy (c_file_name, STANDARD_BIN_PREFIX); | |
4e81a331 RS |
619 | strcat (c_file_name, "gcc"); |
620 | if (access (c_file_name, X_OK) < 0) | |
621 | #endif | |
622 | { | |
ed5b9462 RS |
623 | #ifdef STANDARD_EXEC_PREFIX |
624 | strcpy (c_file_name, STANDARD_EXEC_PREFIX); | |
625 | strcat (c_file_name, "gcc"); | |
626 | if (access (c_file_name, X_OK) < 0) | |
627 | #endif | |
628 | { | |
629 | strcpy (c_file_name, "gcc"); | |
630 | } | |
4e81a331 RS |
631 | } |
632 | } | |
633 | } | |
634 | ||
635 | memcpy (nm_file_name, prefix, len); | |
636 | strcpy (nm_file_name + len, "nm"); | |
637 | if (access (nm_file_name, X_OK) < 0) | |
638 | { | |
639 | strcpy (nm_file_name + len, "gnm"); | |
640 | if (access (nm_file_name, X_OK) < 0) | |
641 | { | |
642 | free (nm_file_name); | |
643 | #ifdef REAL_NM_FILE_NAME | |
644 | nm_file_name = REAL_NM_FILE_NAME; | |
645 | #else | |
646 | nm_file_name = (access ("/usr/bin/nm", X_OK) == 0) ? "/usr/bin/nm" : "/bin/nm"; | |
647 | #endif | |
648 | } | |
649 | } | |
650 | ||
4e81a331 RS |
651 | *ld1++ = *ld2++ = "ld"; |
652 | ||
653 | /* Make temp file names. */ | |
654 | choose_temp_base (); | |
655 | c_file = xcalloc (temp_filename_length + sizeof (".c"), 1); | |
656 | o_file = xcalloc (temp_filename_length + sizeof (".o"), 1); | |
657 | sprintf (c_file, "%s.c", temp_filename); | |
658 | sprintf (o_file, "%s.o", temp_filename); | |
ed5b9462 | 659 | *c_ptr++ = c_file_name; |
4e81a331 RS |
660 | *c_ptr++ = "-c"; |
661 | *c_ptr++ = "-o"; | |
662 | *c_ptr++ = o_file; | |
663 | ||
ed5b9462 RS |
664 | /* !!! When GCC calls collect2, |
665 | it does not know whether it is calling collect2 or ld. | |
666 | So collect2 cannot meaningfully understand any options | |
667 | except those ld understands. | |
668 | If you propose to make GCC pass some other option, | |
669 | just imagine what will happen if ld is really ld!!! */ | |
670 | ||
4e81a331 | 671 | /* Parse arguments. Remember output file spec, pass the rest to ld. */ |
ed5b9462 RS |
672 | /* After the first file, put in the c++ rt0. */ |
673 | ||
4e81a331 RS |
674 | first_file = 1; |
675 | while ((arg = *++argv) != (char *)0) | |
676 | { | |
677 | *ld1++ = *ld2++ = arg; | |
678 | ||
679 | if (arg[0] == '-') | |
680 | switch (arg[1]) | |
681 | { | |
682 | case 'd': | |
683 | if (!strcmp (arg, "-debug")) | |
684 | { | |
685 | debug = 1; | |
686 | vflag = 1; | |
687 | ld1--; | |
688 | ld2--; | |
689 | } | |
690 | break; | |
691 | ||
4e81a331 RS |
692 | case 'o': |
693 | outfile = (arg[2] == '\0') ? argv[1] : &arg[2]; | |
694 | break; | |
695 | ||
696 | case 'r': | |
697 | if (arg[2] == '\0') | |
698 | rflag = 1; | |
699 | break; | |
700 | ||
701 | case 'v': | |
702 | if (arg[2] == '\0') | |
703 | vflag = 1; | |
704 | break; | |
705 | } | |
706 | ||
707 | else if (first_file | |
708 | && (p = strrchr (arg, '.')) != (char *)0 | |
709 | && strcmp (p, ".o") == 0) | |
710 | { | |
711 | first_file = 0; | |
712 | *ld2++ = o_file; | |
713 | } | |
714 | } | |
715 | ||
ed5b9462 RS |
716 | /* Get any options that the upper GCC wants to pass to the sub-GCC. */ |
717 | p = (char *) getenv ("COLLECT_GCC_OPTIONS"); | |
718 | if (p) | |
719 | while (*p) | |
720 | { | |
721 | char *q = p; | |
722 | while (*q && *q != ' ') q++; | |
723 | if (*p == '-' && (p[1] == 'm' || p[1] == 'f')) | |
724 | *c_ptr++ = savestring (p, q - p); | |
725 | ||
726 | if (*q) q++; | |
727 | p = q; | |
728 | } | |
729 | ||
4e81a331 RS |
730 | *c_ptr++ = c_file; |
731 | *c_ptr = *ld1 = *ld2 = (char *)0; | |
732 | ||
733 | if (vflag) | |
734 | { | |
ed5b9462 | 735 | fprintf (stderr, "collect2 version %s", version_string); |
4e81a331 RS |
736 | #ifdef TARGET_VERSION |
737 | TARGET_VERSION; | |
738 | #endif | |
739 | fprintf (stderr, "\n"); | |
740 | } | |
741 | ||
742 | if (debug) | |
743 | { | |
ed5b9462 RS |
744 | char *ptr; |
745 | fprintf (stderr, "prefix = %s\n", prefix); | |
746 | fprintf (stderr, "ld_file_name = %s\n", ld_file_name); | |
747 | fprintf (stderr, "c_file_name = %s\n", c_file_name); | |
748 | fprintf (stderr, "nm_file_name = %s\n", nm_file_name); | |
749 | fprintf (stderr, "c_file = %s\n", c_file); | |
750 | fprintf (stderr, "o_file = %s\n", o_file); | |
751 | ||
752 | ptr = getenv ("COLLECT_GCC_OPTIONS"); | |
753 | if (ptr) | |
754 | fprintf (stderr, "COLLECT_GCC_OPTIONS = %s\n", ptr); | |
755 | ||
756 | ptr = getenv ("COLLECT_GCC"); | |
757 | if (ptr) | |
758 | fprintf (stderr, "COLLECT_GCC = %s\n", ptr); | |
759 | ||
760 | ptr = getenv ("COMPILER_PATH"); | |
761 | if (ptr) | |
762 | fprintf (stderr, "COMPILER_PATH = %s\n", ptr); | |
763 | ||
764 | ptr = getenv ("LIBRARY_PATH"); | |
765 | if (ptr) | |
766 | fprintf (stderr, "LIBRARY_PATH = %s\n", ptr); | |
767 | ||
768 | fprintf (stderr, "\n"); | |
4e81a331 RS |
769 | } |
770 | ||
771 | /* Load the program, searching all libraries. | |
772 | Examine the namelist with nm and search it for static constructors | |
773 | and destructors to call. | |
774 | Write the constructor and destructor tables to a .s file and reload. */ | |
775 | ||
776 | fork_execute (ld_file_name, ld1_argv); | |
777 | ||
778 | /* If -r, don't build the constructor or destructor list, just return now. */ | |
779 | if (rflag) | |
780 | return 0; | |
781 | ||
782 | scan_prog_file (outfile, PASS_FIRST); | |
783 | ||
784 | if (debug) | |
785 | { | |
786 | fprintf (stderr, "%d constructor(s) found\n", constructors.number); | |
787 | fprintf (stderr, "%d destructor(s) found\n", destructors.number); | |
788 | } | |
789 | ||
790 | if (constructors.number == 0 && destructors.number == 0) | |
791 | return 0; | |
792 | ||
793 | outf = fopen (c_file, "w"); | |
794 | if (outf == (FILE *)0) | |
795 | fatal_perror ("Can't write %s", c_file); | |
796 | ||
797 | write_c_file (outf, c_file); | |
798 | ||
799 | if (fclose (outf)) | |
800 | fatal_perror ("Can't close %s", c_file); | |
801 | ||
802 | if (debug) | |
803 | { | |
804 | fprintf (stderr, "\n========== outfile = %s, c_file = %s\n", outfile, c_file); | |
805 | write_c_file (stderr, "stderr"); | |
806 | fprintf (stderr, "========== end of c_file\n\n"); | |
807 | } | |
808 | ||
809 | /* Assemble the constructor and destructor tables. | |
810 | Link the tables in with the rest of the program. */ | |
811 | ||
812 | fork_execute (c_file_name, c_argv); | |
813 | fork_execute (ld_file_name, ld2_argv); | |
814 | ||
815 | /* Let scan_prog_file do any final mods (OSF/rose needs this for | |
816 | constructors/destructors in shared libraries. */ | |
817 | scan_prog_file (outfile, PASS_SECOND); | |
818 | ||
819 | maybe_unlink (c_file); | |
820 | maybe_unlink (o_file); | |
821 | return 0; | |
822 | } | |
823 | ||
824 | \f | |
825 | /* Wait for a process to finish, and exit if a non-zero status is found. */ | |
826 | ||
827 | static void | |
828 | do_wait (prog) | |
829 | char *prog; | |
830 | { | |
831 | int status; | |
832 | ||
833 | wait (&status); | |
834 | if (status) | |
835 | { | |
ed5b9462 | 836 | int sig = status & 0x7F; |
4e81a331 RS |
837 | int ret; |
838 | ||
839 | if (sig != -1 && sig != 0) | |
840 | { | |
ed5b9462 RS |
841 | #ifdef NO_SYS_SIGLIST |
842 | error ("%s terminated with signal %d %s", | |
843 | prog, | |
844 | sig, | |
845 | (status & 0200) ? ", core dumped" : ""); | |
846 | #else | |
4e81a331 RS |
847 | error ("%s terminated with signal %d [%s]%s", |
848 | prog, | |
849 | sig, | |
850 | sys_siglist[sig], | |
851 | (status & 0200) ? ", core dumped" : ""); | |
ed5b9462 | 852 | #endif |
4e81a331 RS |
853 | |
854 | my_exit (127); | |
855 | } | |
856 | ||
ed5b9462 | 857 | ret = ((status & 0xFF00) >> 8); |
4e81a331 RS |
858 | if (ret != -1 && ret != 0) |
859 | { | |
860 | error ("%s returned %d exit status", prog, ret); | |
861 | my_exit (ret); | |
862 | } | |
863 | } | |
864 | } | |
865 | ||
866 | \f | |
867 | /* Fork and execute a program, and wait for the reply. */ | |
868 | ||
869 | static void | |
870 | fork_execute (prog, argv) | |
871 | char *prog; | |
872 | char **argv; | |
873 | { | |
874 | int pid; | |
ed5b9462 RS |
875 | void (*int_handler) (); |
876 | void (*quit_handler) (); | |
4e81a331 RS |
877 | |
878 | if (vflag || debug) | |
879 | { | |
880 | char **p_argv; | |
881 | char *str; | |
882 | ||
883 | fprintf (stderr, "%s", prog); | |
884 | for (p_argv = &argv[1]; (str = *p_argv) != (char *)0; p_argv++) | |
885 | fprintf (stderr, " %s", str); | |
886 | ||
887 | fprintf (stderr, "\n"); | |
888 | } | |
889 | ||
890 | fflush (stdout); | |
891 | fflush (stderr); | |
892 | ||
893 | pid = vfork (); | |
894 | if (pid == -1) | |
895 | fatal_perror ("vfork"); | |
896 | ||
897 | if (pid == 0) /* child context */ | |
898 | { | |
899 | execvp (prog, argv); | |
900 | fatal_perror ("Execute %s", prog); | |
901 | } | |
902 | ||
ed5b9462 RS |
903 | int_handler = (void (*) ())signal (SIGINT, SIG_IGN); |
904 | quit_handler = (void (*) ())signal (SIGQUIT, SIG_IGN); | |
4e81a331 RS |
905 | |
906 | do_wait (prog); | |
907 | ||
908 | signal (SIGINT, int_handler); | |
909 | signal (SIGQUIT, quit_handler); | |
910 | } | |
911 | ||
912 | \f | |
913 | /* Unlink a file unless we are debugging. */ | |
914 | ||
915 | static void | |
916 | maybe_unlink (file) | |
917 | char *file; | |
918 | { | |
919 | if (!debug) | |
920 | unlink (file); | |
921 | else | |
922 | fprintf (stderr, "[Leaving %s]\n", file); | |
923 | } | |
924 | ||
925 | \f | |
926 | /* Add a name to a linked list. */ | |
927 | ||
928 | static void | |
929 | add_to_list (head_ptr, name) | |
930 | struct head *head_ptr; | |
931 | char *name; | |
932 | { | |
933 | struct id *newid = (struct id *) xcalloc (sizeof (*newid) + strlen (name), 1); | |
934 | static long sequence_number = 0; | |
935 | newid->sequence = ++sequence_number; | |
936 | strcpy (newid->name, name); | |
937 | ||
938 | if (head_ptr->first) | |
939 | head_ptr->last->next = newid; | |
940 | else | |
941 | head_ptr->first = newid; | |
942 | ||
943 | head_ptr->last = newid; | |
944 | head_ptr->number++; | |
945 | } | |
946 | ||
947 | /* Write: `prefix', the names on list LIST, `suffix'. */ | |
948 | ||
949 | static void | |
950 | write_list (stream, prefix, list) | |
951 | FILE *stream; | |
952 | char *prefix; | |
953 | struct id *list; | |
954 | { | |
955 | while (list) | |
956 | { | |
957 | fprintf (stream, "%sx%d,\n", prefix, list->sequence); | |
958 | list = list->next; | |
959 | } | |
960 | } | |
961 | ||
962 | static void | |
963 | write_list_with_asm (stream, prefix, list) | |
964 | FILE *stream; | |
965 | char *prefix; | |
966 | struct id *list; | |
967 | { | |
968 | while (list) | |
969 | { | |
970 | fprintf (stream, "%sx%d asm (\"%s\");\n", | |
971 | prefix, list->sequence, list->name); | |
972 | list = list->next; | |
973 | } | |
974 | } | |
975 | ||
976 | /* Write the constructor/destructor tables. */ | |
977 | ||
978 | static void | |
979 | write_c_file (stream, name) | |
980 | FILE *stream; | |
981 | char *name; | |
982 | { | |
983 | /* Write the tables as C code */ | |
984 | ||
985 | fprintf (stream, "typedef void entry_pt();\n\n"); | |
986 | ||
ed5b9462 | 987 | write_list_with_asm (stream, "entry_pt ", constructors.first); |
4e81a331 RS |
988 | |
989 | fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n"); | |
990 | fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number); | |
ed5b9462 | 991 | write_list (stream, "\t", constructors.first); |
4e81a331 RS |
992 | fprintf (stream, "\t0\n};\n\n"); |
993 | ||
ed5b9462 | 994 | write_list_with_asm (stream, "entry_pt ", destructors.first); |
4e81a331 RS |
995 | |
996 | fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n"); | |
997 | fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number); | |
ed5b9462 | 998 | write_list (stream, "\t", destructors.first); |
4e81a331 RS |
999 | fprintf (stream, "\t0\n};\n\n"); |
1000 | ||
1001 | fprintf (stream, "extern entry_pt __main;\n"); | |
1002 | fprintf (stream, "entry_pt *__main_reference = __main;\n\n"); | |
1003 | } | |
1004 | ||
1005 | \f | |
ed5b9462 | 1006 | #ifdef OBJECT_FORMAT_NONE |
4e81a331 | 1007 | |
ed5b9462 RS |
1008 | /* Generic version to scan the name list of the loaded program for |
1009 | the symbols g++ uses for static constructors and destructors. | |
4e81a331 RS |
1010 | |
1011 | The constructor table begins at __CTOR_LIST__ and contains a count | |
1012 | of the number of pointers (or -1 if the constructors are built in a | |
1013 | separate section by the linker), followed by the pointers to the | |
1014 | constructor functions, terminated with a null pointer. The | |
1015 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
1016 | ||
1017 | static void | |
1018 | scan_prog_file (prog_name, which_pass) | |
1019 | char *prog_name; | |
1020 | enum pass which_pass; | |
1021 | { | |
ed5b9462 RS |
1022 | void (*int_handler) (); |
1023 | void (*quit_handler) (); | |
4e81a331 RS |
1024 | char *nm_argv[4]; |
1025 | int pid; | |
1026 | int argc = 0; | |
1027 | int pipe_fd[2]; | |
1028 | char *p, buf[1024]; | |
1029 | FILE *inf; | |
1030 | ||
1031 | if (which_pass != PASS_FIRST) | |
1032 | return; | |
1033 | ||
ed5b9462 | 1034 | nm_argv[argc++] = "nm"; |
4e81a331 | 1035 | if (NM_FLAGS[0] != '\0') |
ed5b9462 | 1036 | nm_argv[argc++] = NM_FLAGS; |
4e81a331 | 1037 | |
ed5b9462 RS |
1038 | nm_argv[argc++] = prog_name; |
1039 | nm_argv[argc++] = (char *)0; | |
4e81a331 RS |
1040 | |
1041 | if (pipe (pipe_fd) < 0) | |
1042 | fatal_perror ("pipe"); | |
1043 | ||
1044 | inf = fdopen (pipe_fd[0], "r"); | |
1045 | if (inf == (FILE *)0) | |
1046 | fatal_perror ("fdopen"); | |
1047 | ||
1048 | /* Trace if needed. */ | |
1049 | if (vflag) | |
1050 | { | |
1051 | char **p_argv; | |
1052 | char *str; | |
1053 | ||
1054 | fprintf (stderr, "%s", nm_file_name); | |
1055 | for (p_argv = &nm_argv[1]; (str = *p_argv) != (char *)0; p_argv++) | |
1056 | fprintf (stderr, " %s", str); | |
1057 | ||
1058 | fprintf (stderr, "\n"); | |
1059 | } | |
1060 | ||
1061 | fflush (stdout); | |
1062 | fflush (stderr); | |
1063 | ||
1064 | /* Spawn child nm on pipe */ | |
1065 | pid = vfork (); | |
1066 | if (pid == -1) | |
1067 | fatal_perror ("vfork"); | |
1068 | ||
1069 | if (pid == 0) /* child context */ | |
1070 | { | |
1071 | /* setup stdout */ | |
1072 | if (dup2 (pipe_fd[1], 1) < 0) | |
1073 | fatal_perror ("Dup2 (%d, 1)", pipe_fd[1]); | |
1074 | ||
1075 | if (close (pipe_fd[0]) < 0) | |
1076 | fatal_perror ("Close (%d)", pipe_fd[0]); | |
1077 | ||
1078 | if (close (pipe_fd[1]) < 0) | |
1079 | fatal_perror ("Close (%d)", pipe_fd[1]); | |
1080 | ||
1081 | execv (nm_file_name, nm_argv); | |
1082 | fatal_perror ("Execute %s", nm_file_name); | |
1083 | } | |
1084 | ||
1085 | /* Parent context from here on. */ | |
ed5b9462 RS |
1086 | int_handler = (void (*) ())signal (SIGINT, SIG_IGN); |
1087 | quit_handler = (void (*) ())signal (SIGQUIT, SIG_IGN); | |
4e81a331 RS |
1088 | |
1089 | if (close (pipe_fd[1]) < 0) | |
1090 | fatal_perror ("Close (%d)", pipe_fd[1]); | |
1091 | ||
1092 | if (debug) | |
1093 | fprintf (stderr, "\nnm output with constructors/destructors.\n"); | |
1094 | ||
1095 | /* Read each line of nm output. */ | |
1096 | while (fgets (buf, sizeof buf, inf) != (char *)0) | |
1097 | { | |
1098 | int ch, ch2; | |
ed5b9462 | 1099 | char *name, *end; |
4e81a331 RS |
1100 | |
1101 | /* If it contains a constructor or destructor name, add the name | |
1102 | to the appropriate list. */ | |
1103 | ||
1104 | for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++) | |
1105 | ; | |
1106 | ||
1107 | if (ch == '\0' || ch == '\n') | |
1108 | continue; | |
ed5b9462 RS |
1109 | |
1110 | name = p; | |
1111 | /* Find the end of the symbol name. | |
1112 | Don't include `|', because Encore nm can tack that on the end. */ | |
1113 | for (end = p; (ch2 = *end) != '\0' && !isspace (ch2) && ch2 != '|'; | |
1114 | end++) | |
1115 | continue; | |
4e81a331 RS |
1116 | |
1117 | *end = '\0'; | |
ed5b9462 | 1118 | switch (is_ctor_dtor (name)) |
4e81a331 | 1119 | { |
ed5b9462 RS |
1120 | case 1: |
1121 | add_to_list (&constructors, name); | |
1122 | break; | |
4e81a331 | 1123 | |
ed5b9462 RS |
1124 | case 2: |
1125 | add_to_list (&destructors, name); | |
1126 | break; | |
4e81a331 | 1127 | |
ed5b9462 RS |
1128 | default: /* not a constructor or destructor */ |
1129 | continue; | |
4e81a331 RS |
1130 | } |
1131 | ||
4e81a331 RS |
1132 | if (debug) |
1133 | fprintf (stderr, "\t%s\n", buf); | |
1134 | } | |
1135 | ||
1136 | if (debug) | |
1137 | fprintf (stderr, "\n"); | |
1138 | ||
1139 | if (fclose (inf) != 0) | |
1140 | fatal_perror ("fclose of pipe"); | |
1141 | ||
1142 | do_wait (nm_file_name); | |
1143 | ||
1144 | signal (SIGINT, int_handler); | |
1145 | signal (SIGQUIT, quit_handler); | |
1146 | } | |
1147 | ||
ed5b9462 RS |
1148 | #endif /* OBJECT_FORMAT_NONE */ |
1149 | ||
1150 | \f | |
1151 | /* | |
1152 | * COFF specific stuff. | |
1153 | */ | |
1154 | ||
1155 | #ifdef OBJECT_FORMAT_COFF | |
1156 | ||
1157 | #if defined(EXTENDED_COFF) | |
1158 | # define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax+SYMHEADER(X).iextMax) | |
1159 | # define GCC_SYMENT SYMR | |
1160 | # define GCC_OK_SYMBOL(X) ((X).st == stProc && (X).sc == scText) | |
1161 | # define GCC_SYMINC(X) (1) | |
1162 | # define GCC_SYMZERO(X) (SYMHEADER(X).isymMax) | |
1163 | #else | |
1164 | # define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms) | |
1165 | # define GCC_SYMENT SYMENT | |
1166 | # define GCC_OK_SYMBOL(X) \ | |
1167 | (((X).n_sclass == C_EXT) && \ | |
1168 | (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) || \ | |
1169 | ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT))) | |
1170 | # define GCC_SYMINC(X) ((X).n_numaux+1) | |
1171 | # define GCC_SYMZERO(X) 0 | |
1172 | #endif | |
1173 | ||
1174 | extern char *ldgetname (); | |
1175 | ||
1176 | /* COFF version to scan the name list of the loaded program for | |
1177 | the symbols g++ uses for static constructors and destructors. | |
1178 | ||
1179 | The constructor table begins at __CTOR_LIST__ and contains a count | |
1180 | of the number of pointers (or -1 if the constructors are built in a | |
1181 | separate section by the linker), followed by the pointers to the | |
1182 | constructor functions, terminated with a null pointer. The | |
1183 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
1184 | ||
1185 | static void | |
1186 | scan_prog_file (prog_name, which_pass) | |
1187 | char *prog_name; | |
1188 | enum pass which_pass; | |
1189 | { | |
1190 | LDFILE *ldptr; | |
1191 | int sym_index, sym_count; | |
1192 | ||
1193 | if (which_pass != PASS_FIRST) | |
1194 | return; | |
1195 | ||
1196 | if ((ldptr = ldopen (prog_name, ldptr)) == NULL) | |
1197 | fatal ("%s: can't open as COFF file", prog_name); | |
1198 | ||
1199 | if (!ISCOFF (HEADER(ldptr).f_magic)) | |
1200 | fatal ("%s: not a COFF file", prog_name); | |
1201 | ||
1202 | sym_count = GCC_SYMBOLS (ldptr); | |
1203 | sym_index = GCC_SYMZERO (ldptr); | |
1204 | while (sym_index < sym_count) | |
1205 | { | |
1206 | GCC_SYMENT symbol; | |
1207 | ||
1208 | if (ldtbread (ldptr, sym_index, &symbol) <= 0) | |
1209 | break; | |
1210 | sym_index += GCC_SYMINC (symbol); | |
1211 | ||
1212 | if (GCC_OK_SYMBOL (symbol)) | |
1213 | { | |
1214 | char *name; | |
1215 | ||
1216 | if ((name = ldgetname (ldptr, &symbol)) == NULL) | |
1217 | continue; /* should never happen */ | |
1218 | ||
1219 | #ifdef _AIX | |
1220 | /* All AIX function names begin with a dot. */ | |
1221 | if (*name++ != '.') | |
1222 | continue; | |
1223 | #endif | |
1224 | ||
1225 | switch (is_ctor_dtor (name)) | |
1226 | { | |
1227 | case 1: | |
1228 | add_to_list (&constructors, name); | |
1229 | break; | |
1230 | ||
1231 | case 2: | |
1232 | add_to_list (&destructors, name); | |
1233 | break; | |
1234 | ||
1235 | default: /* not a constructor or destructor */ | |
1236 | continue; | |
1237 | } | |
1238 | ||
1239 | #if !defined(EXTENDED_COFF) | |
1240 | if (debug) | |
1241 | fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n", | |
1242 | symbol.n_scnum, symbol.n_sclass, | |
1243 | (symbol.n_type ? "0" : ""), symbol.n_type, | |
1244 | name); | |
1245 | #else | |
1246 | if (debug) | |
1247 | fprintf (stderr, "\tiss = %5d, value = %5d, index = %5d, name = %s\n", | |
1248 | symbol.iss, symbol.value, symbol.index, name); | |
1249 | #endif | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | (void) ldclose(ldptr); | |
1254 | } | |
1255 | ||
1256 | #endif /* OBJECT_FORMAT_COFF */ | |
4e81a331 RS |
1257 | |
1258 | \f | |
1259 | /* | |
1260 | * OSF/rose specific stuff. | |
1261 | */ | |
1262 | ||
1263 | #ifdef OBJECT_FORMAT_ROSE | |
1264 | ||
1265 | /* Union of the various load commands */ | |
1266 | ||
1267 | typedef union load_union | |
1268 | { | |
1269 | ldc_header_t hdr; /* common header */ | |
1270 | load_cmd_map_command_t map; /* map indexing other load cmds */ | |
ed5b9462 | 1271 | interpreter_command_t iprtr; /* interpreter pathname */ |
4e81a331 RS |
1272 | strings_command_t str; /* load commands strings section */ |
1273 | region_command_t region; /* region load command */ | |
1274 | reloc_command_t reloc; /* relocation section */ | |
1275 | package_command_t pkg; /* package load command */ | |
1276 | symbols_command_t sym; /* symbol sections */ | |
1277 | entry_command_t ent; /* program start section */ | |
1278 | gen_info_command_t info; /* object information */ | |
1279 | func_table_command_t func; /* function constructors/destructors */ | |
1280 | } load_union_t; | |
1281 | ||
1282 | /* Structure to point to load command and data section in memory. */ | |
1283 | ||
1284 | typedef struct load_all | |
1285 | { | |
1286 | load_union_t *load; /* load command */ | |
1287 | char *section; /* pointer to section */ | |
1288 | } load_all_t; | |
1289 | ||
1290 | /* Structure to contain information about a file mapped into memory. */ | |
1291 | ||
1292 | struct file_info | |
1293 | { | |
1294 | char *start; /* start of map */ | |
1295 | char *name; /* filename */ | |
1296 | long size; /* size of the file */ | |
1297 | long rounded_size; /* size rounded to page boundary */ | |
1298 | int fd; /* file descriptor */ | |
1299 | int rw; /* != 0 if opened read/write */ | |
1300 | int use_mmap; /* != 0 if mmap'ed */ | |
1301 | }; | |
1302 | ||
ed5b9462 | 1303 | extern int decode_mach_o_hdr (); |
4e81a331 | 1304 | |
ed5b9462 | 1305 | extern int encode_mach_o_hdr (); |
4e81a331 | 1306 | |
ed5b9462 | 1307 | static void bad_header (); |
4e81a331 | 1308 | |
ed5b9462 | 1309 | static void print_header (); |
4e81a331 | 1310 | |
ed5b9462 | 1311 | static void print_load_command (); |
4e81a331 | 1312 | |
ed5b9462 | 1313 | static void add_func_table (); |
4e81a331 | 1314 | |
ed5b9462 | 1315 | static struct file_info *read_file (); |
4e81a331 | 1316 | |
ed5b9462 | 1317 | static void end_file (); |
4e81a331 RS |
1318 | |
1319 | \f | |
1320 | /* OSF/rose specific version to scan the name list of the loaded | |
1321 | program for the symbols g++ uses for static constructors and | |
1322 | destructors. | |
1323 | ||
1324 | The constructor table begins at __CTOR_LIST__ and contains a count | |
1325 | of the number of pointers (or -1 if the constructors are built in a | |
1326 | separate section by the linker), followed by the pointers to the | |
1327 | constructor functions, terminated with a null pointer. The | |
1328 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
1329 | ||
1330 | static void | |
1331 | scan_prog_file (prog_name, which_pass) | |
1332 | char *prog_name; | |
1333 | enum pass which_pass; | |
1334 | { | |
1335 | char *obj; | |
1336 | mo_header_t hdr; | |
1337 | load_all_t *load_array; | |
1338 | load_all_t *load_end; | |
1339 | load_all_t *load_cmd; | |
1340 | int symbol_load_cmds; | |
1341 | off_t offset; | |
1342 | int i; | |
1343 | int num_syms; | |
1344 | int status; | |
1345 | char *str_sect; | |
1346 | struct file_info *obj_file; | |
1347 | int prog_fd; | |
1348 | mo_lcid_t cmd_strings = -1; | |
1349 | symbol_info_t *main_sym = 0; | |
1350 | int rw = (which_pass != PASS_FIRST); | |
1351 | ||
1352 | prog_fd = open (prog_name, (rw) ? O_RDWR : O_RDONLY); | |
1353 | if (prog_fd < 0) | |
1354 | fatal_perror ("Can't read %s", prog_name); | |
1355 | ||
1356 | obj_file = read_file (prog_name, prog_fd, rw); | |
1357 | obj = obj_file->start; | |
1358 | ||
1359 | status = decode_mach_o_hdr (obj, MO_SIZEOF_RAW_HDR, MOH_HEADER_VERSION, &hdr); | |
1360 | if (status != MO_HDR_CONV_SUCCESS) | |
1361 | bad_header (status); | |
1362 | ||
1363 | ||
1364 | /* Do some basic sanity checks. Note we explicitly use the big endian magic number, | |
1365 | since the hardware will automatically swap bytes for us on loading little endian | |
1366 | integers. */ | |
1367 | ||
1368 | #ifndef CROSS_COMPILE | |
1369 | if (hdr.moh_magic != MOH_MAGIC_MSB | |
1370 | || hdr.moh_header_version != MOH_HEADER_VERSION | |
1371 | || hdr.moh_byte_order != OUR_BYTE_ORDER | |
1372 | || hdr.moh_data_rep_id != OUR_DATA_REP_ID | |
1373 | || hdr.moh_cpu_type != OUR_CPU_TYPE | |
1374 | || hdr.moh_cpu_subtype != OUR_CPU_SUBTYPE | |
1375 | || hdr.moh_vendor_type != OUR_VENDOR_TYPE) | |
1376 | { | |
1377 | fatal ("incompatibilities exist between object file & expected values."); | |
1378 | } | |
1379 | #endif | |
1380 | ||
1381 | if (debug) | |
1382 | print_header (&hdr); | |
1383 | ||
1384 | offset = hdr.moh_first_cmd_off; | |
1385 | load_end = load_array | |
1386 | = (load_all_t *) xcalloc (sizeof (load_all_t), hdr.moh_n_load_cmds + 2); | |
1387 | ||
1388 | /* Build array of load commands, calculating the offsets */ | |
1389 | for (i = 0; i < hdr.moh_n_load_cmds; i++) | |
1390 | { | |
1391 | load_union_t *load_hdr; /* load command header */ | |
1392 | ||
1393 | load_cmd = load_end++; | |
1394 | load_hdr = (load_union_t *) (obj + offset); | |
1395 | ||
1396 | /* If modifing the program file, copy the header. */ | |
1397 | if (rw) | |
1398 | { | |
1399 | load_union_t *ptr = (load_union_t *) xmalloc (load_hdr->hdr.ldci_cmd_size); | |
1400 | memcpy (ptr, load_hdr, load_hdr->hdr.ldci_cmd_size); | |
1401 | load_hdr = ptr; | |
1402 | ||
1403 | /* null out old command map, because we will rewrite at the end. */ | |
1404 | if (ptr->hdr.ldci_cmd_type == LDC_CMD_MAP) | |
1405 | { | |
1406 | cmd_strings = ptr->map.lcm_ld_cmd_strings; | |
1407 | ptr->hdr.ldci_cmd_type = LDC_UNDEFINED; | |
1408 | } | |
1409 | } | |
1410 | ||
1411 | load_cmd->load = load_hdr; | |
1412 | if (load_hdr->hdr.ldci_section_off > 0) | |
1413 | load_cmd->section = obj + load_hdr->hdr.ldci_section_off; | |
1414 | ||
1415 | if (debug) | |
1416 | print_load_command (load_hdr, offset, i); | |
1417 | ||
1418 | offset += load_hdr->hdr.ldci_cmd_size; | |
1419 | } | |
1420 | ||
1421 | /* If the last command is the load command map and is not undefined, | |
1422 | decrement the count of load commands. */ | |
1423 | if (rw && load_end[-1].load->hdr.ldci_cmd_type == LDC_UNDEFINED) | |
1424 | { | |
1425 | load_end--; | |
1426 | hdr.moh_n_load_cmds--; | |
1427 | } | |
1428 | ||
1429 | /* Go through and process each symbol table section. */ | |
1430 | symbol_load_cmds = 0; | |
1431 | for (load_cmd = load_array; load_cmd < load_end; load_cmd++) | |
1432 | { | |
1433 | load_union_t *load_hdr = load_cmd->load; | |
1434 | ||
1435 | if (load_hdr->hdr.ldci_cmd_type == LDC_SYMBOLS) | |
1436 | { | |
1437 | symbol_load_cmds++; | |
1438 | ||
1439 | if (debug) | |
1440 | { | |
ed5b9462 | 1441 | char *kind = "unknown"; |
4e81a331 RS |
1442 | |
1443 | switch (load_hdr->sym.symc_kind) | |
1444 | { | |
1445 | case SYMC_IMPORTS: kind = "imports"; break; | |
1446 | case SYMC_DEFINED_SYMBOLS: kind = "defined"; break; | |
1447 | case SYMC_STABS: kind = "stabs"; break; | |
1448 | } | |
1449 | ||
1450 | fprintf (stderr, "\nProcessing symbol table #%d, offset = 0x%.8lx, kind = %s\n", | |
1451 | symbol_load_cmds, load_hdr->hdr.ldci_section_off, kind); | |
1452 | } | |
1453 | ||
1454 | if (load_hdr->sym.symc_kind != SYMC_DEFINED_SYMBOLS) | |
1455 | continue; | |
1456 | ||
ed5b9462 | 1457 | str_sect = load_array[load_hdr->sym.symc_strings_section].section; |
4e81a331 RS |
1458 | if (str_sect == (char *)0) |
1459 | fatal ("string section missing"); | |
1460 | ||
1461 | if (load_cmd->section == (char *)0) | |
1462 | fatal ("section pointer missing"); | |
1463 | ||
1464 | num_syms = load_hdr->sym.symc_nentries; | |
1465 | for (i = 0; i < num_syms; i++) | |
1466 | { | |
1467 | symbol_info_t *sym = ((symbol_info_t *) load_cmd->section) + i; | |
1468 | char *name = sym->si_name.symbol_name + str_sect; | |
4e81a331 RS |
1469 | |
1470 | if (name[0] != '_') | |
1471 | continue; | |
1472 | ||
4e81a331 RS |
1473 | if (rw) |
1474 | { | |
ed5b9462 RS |
1475 | char *n = name; |
1476 | while (*n == '_') | |
1477 | ++n; | |
1478 | if (*n != 'm' || (n - name) < 2 || strcmp (n, "main")) | |
4e81a331 RS |
1479 | continue; |
1480 | ||
1481 | main_sym = sym; | |
1482 | } | |
ed5b9462 | 1483 | else |
4e81a331 | 1484 | { |
ed5b9462 RS |
1485 | switch (is_ctor_dtor (name)) |
1486 | { | |
1487 | case 1: | |
1488 | add_to_list (&constructors, name); | |
1489 | break; | |
1490 | ||
1491 | case 2: | |
1492 | add_to_list (&destructors, name); | |
1493 | break; | |
1494 | ||
1495 | default: /* not a constructor or destructor */ | |
1496 | continue; | |
1497 | } | |
4e81a331 RS |
1498 | } |
1499 | ||
4e81a331 RS |
1500 | if (debug) |
1501 | fprintf (stderr, "\ttype = 0x%.4x, sc = 0x%.2x, flags = 0x%.8x, name = %.30s\n", | |
1502 | sym->si_type, sym->si_sc_type, sym->si_flags, name); | |
1503 | } | |
1504 | } | |
1505 | } | |
1506 | ||
1507 | if (symbol_load_cmds == 0) | |
1508 | fatal ("no symbol table found."); | |
1509 | ||
1510 | /* Update the program file now, rewrite header and load commands. At present, | |
1511 | we assume that there is enough space after the last load command to insert | |
1512 | one more. Since the first section written out is page aligned, and the | |
1513 | number of load commands is small, this is ok for the present. */ | |
1514 | ||
1515 | if (rw) | |
1516 | { | |
1517 | load_union_t *load_map; | |
1518 | size_t size; | |
1519 | ||
1520 | if (cmd_strings == -1) | |
1521 | fatal ("no cmd_strings found."); | |
1522 | ||
1523 | /* Add __main to initializer list. */ | |
1524 | if (main_sym != (symbol_info_t *)0) | |
1525 | add_func_table (&hdr, load_array, main_sym, FNTC_INITIALIZATION); | |
1526 | ||
1527 | if (debug) | |
1528 | fprintf (stderr, "\nUpdating header and load commands.\n\n"); | |
1529 | ||
1530 | hdr.moh_n_load_cmds++; | |
1531 | size = sizeof (load_cmd_map_command_t) + (sizeof (mo_offset_t) * (hdr.moh_n_load_cmds - 1)); | |
1532 | ||
1533 | /* Create new load command map. */ | |
1534 | if (debug) | |
1535 | fprintf (stderr, "load command map, %d cmds, new size %ld.\n", | |
1536 | (int)hdr.moh_n_load_cmds, (long)size); | |
1537 | ||
1538 | load_map = (load_union_t *) xcalloc (1, size); | |
1539 | load_map->map.ldc_header.ldci_cmd_type = LDC_CMD_MAP; | |
1540 | load_map->map.ldc_header.ldci_cmd_size = size; | |
1541 | load_map->map.lcm_ld_cmd_strings = cmd_strings; | |
1542 | load_map->map.lcm_nentries = hdr.moh_n_load_cmds; | |
1543 | load_array[hdr.moh_n_load_cmds-1].load = load_map; | |
1544 | ||
1545 | offset = hdr.moh_first_cmd_off; | |
1546 | for (i = 0; i < hdr.moh_n_load_cmds; i++) | |
1547 | { | |
1548 | load_map->map.lcm_map[i] = offset; | |
1549 | if (load_array[i].load->hdr.ldci_cmd_type == LDC_CMD_MAP) | |
1550 | hdr.moh_load_map_cmd_off = offset; | |
1551 | ||
1552 | offset += load_array[i].load->hdr.ldci_cmd_size; | |
1553 | } | |
1554 | ||
1555 | hdr.moh_sizeofcmds = offset - MO_SIZEOF_RAW_HDR; | |
1556 | ||
1557 | if (debug) | |
1558 | print_header (&hdr); | |
1559 | ||
1560 | /* Write header */ | |
1561 | status = encode_mach_o_hdr (&hdr, obj, MO_SIZEOF_RAW_HDR); | |
1562 | if (status != MO_HDR_CONV_SUCCESS) | |
1563 | bad_header (status); | |
1564 | ||
1565 | if (debug) | |
1566 | fprintf (stderr, "writing load commands.\n\n"); | |
1567 | ||
1568 | /* Write load commands */ | |
1569 | offset = hdr.moh_first_cmd_off; | |
1570 | for (i = 0; i < hdr.moh_n_load_cmds; i++) | |
1571 | { | |
1572 | load_union_t *load_hdr = load_array[i].load; | |
1573 | size_t size = load_hdr->hdr.ldci_cmd_size; | |
1574 | ||
1575 | if (debug) | |
1576 | print_load_command (load_hdr, offset, i); | |
1577 | ||
1578 | memcpy (obj + offset, load_hdr, size); | |
1579 | offset += size; | |
1580 | } | |
1581 | } | |
1582 | ||
1583 | end_file (obj_file); | |
1584 | ||
1585 | if (close (prog_fd)) | |
1586 | fatal_perror ("Can't close %s", prog_name); | |
1587 | ||
1588 | if (debug) | |
1589 | fprintf (stderr, "\n"); | |
1590 | } | |
1591 | ||
1592 | \f | |
1593 | /* Add a function table to the load commands to call a function | |
ed5b9462 | 1594 | on initiation or termination of the process. */ |
4e81a331 RS |
1595 | |
1596 | static void | |
1597 | add_func_table (hdr_p, load_array, sym, type) | |
1598 | mo_header_t *hdr_p; /* pointer to global header */ | |
1599 | load_all_t *load_array; /* array of ptrs to load cmds */ | |
1600 | symbol_info_t *sym; /* pointer to symbol entry */ | |
1601 | int type; /* fntc_type value */ | |
1602 | { | |
1603 | /* Add a new load command. */ | |
1604 | int num_cmds = ++hdr_p->moh_n_load_cmds; | |
1605 | int load_index = num_cmds - 1; | |
1606 | size_t size = sizeof (func_table_command_t) + sizeof (mo_addr_t); | |
1607 | load_union_t *ptr = xcalloc (1, size); | |
1608 | load_all_t *load_cmd; | |
1609 | int i; | |
1610 | ||
1611 | /* Set the unresolved address bit in the header to force the loader to be | |
1612 | used, since kernel exec does not call the initialization functions. */ | |
1613 | hdr_p->moh_flags |= MOH_UNRESOLVED_F; | |
1614 | ||
1615 | load_cmd = &load_array[load_index]; | |
1616 | load_cmd->load = ptr; | |
1617 | load_cmd->section = (char *)0; | |
1618 | ||
1619 | /* Fill in func table load command. */ | |
1620 | ptr->func.ldc_header.ldci_cmd_type = LDC_FUNC_TABLE; | |
1621 | ptr->func.ldc_header.ldci_cmd_size = size; | |
1622 | ptr->func.ldc_header.ldci_section_off = 0; | |
1623 | ptr->func.ldc_header.ldci_section_len = 0; | |
1624 | ptr->func.fntc_type = type; | |
1625 | ptr->func.fntc_nentries = 1; | |
1626 | ||
1627 | /* copy address, turn it from abs. address to (region,offset) if necessary. */ | |
1628 | /* Is the symbol already expressed as (region, offset)? */ | |
1629 | if ((sym->si_flags & SI_ABSOLUTE_VALUE_F) == 0) | |
1630 | { | |
1631 | ptr->func.fntc_entry_loc[i].adr_lcid = sym->si_value.def_val.adr_lcid; | |
1632 | ptr->func.fntc_entry_loc[i].adr_sctoff = sym->si_value.def_val.adr_sctoff; | |
1633 | } | |
1634 | ||
1635 | /* If not, figure out which region it's in. */ | |
1636 | else | |
1637 | { | |
1638 | mo_vm_addr_t addr = sym->si_value.abs_val; | |
1639 | int found = 0; | |
1640 | ||
1641 | for (i = 0; i < load_index; i++) | |
1642 | { | |
1643 | if (load_array[i].load->hdr.ldci_cmd_type == LDC_REGION) | |
1644 | { | |
1645 | region_command_t *region_ptr = &load_array[i].load->region; | |
1646 | ||
1647 | if ((region_ptr->regc_flags & REG_ABS_ADDR_F) != 0 | |
1648 | && addr >= region_ptr->regc_addr.vm_addr | |
1649 | && addr <= region_ptr->regc_addr.vm_addr + region_ptr->regc_vm_size) | |
1650 | { | |
1651 | ptr->func.fntc_entry_loc[0].adr_lcid = i; | |
1652 | ptr->func.fntc_entry_loc[0].adr_sctoff = addr - region_ptr->regc_addr.vm_addr; | |
1653 | found++; | |
1654 | break; | |
1655 | } | |
1656 | } | |
1657 | } | |
1658 | ||
1659 | if (!found) | |
1660 | fatal ("could not convert 0x%l.8x into a region", addr); | |
1661 | } | |
1662 | ||
1663 | if (debug) | |
1664 | fprintf (stderr, | |
1665 | "%s function, region %d, offset = %ld (0x%.8lx)\n", | |
1666 | (type == FNTC_INITIALIZATION) ? "init" : "term", | |
1667 | (int)ptr->func.fntc_entry_loc[i].adr_lcid, | |
1668 | (long)ptr->func.fntc_entry_loc[i].adr_sctoff, | |
1669 | (long)ptr->func.fntc_entry_loc[i].adr_sctoff); | |
1670 | ||
1671 | } | |
1672 | ||
1673 | \f | |
1674 | /* Print the global header for an OSF/rose object. */ | |
1675 | ||
1676 | static void | |
1677 | print_header (hdr_ptr) | |
1678 | mo_header_t *hdr_ptr; | |
1679 | { | |
1680 | fprintf (stderr, "\nglobal header:\n"); | |
1681 | fprintf (stderr, "\tmoh_magic = 0x%.8lx\n", hdr_ptr->moh_magic); | |
1682 | fprintf (stderr, "\tmoh_major_version = %d\n", (int)hdr_ptr->moh_major_version); | |
1683 | fprintf (stderr, "\tmoh_minor_version = %d\n", (int)hdr_ptr->moh_minor_version); | |
1684 | fprintf (stderr, "\tmoh_header_version = %d\n", (int)hdr_ptr->moh_header_version); | |
1685 | fprintf (stderr, "\tmoh_max_page_size = %d\n", (int)hdr_ptr->moh_max_page_size); | |
1686 | fprintf (stderr, "\tmoh_byte_order = %d\n", (int)hdr_ptr->moh_byte_order); | |
1687 | fprintf (stderr, "\tmoh_data_rep_id = %d\n", (int)hdr_ptr->moh_data_rep_id); | |
1688 | fprintf (stderr, "\tmoh_cpu_type = %d\n", (int)hdr_ptr->moh_cpu_type); | |
1689 | fprintf (stderr, "\tmoh_cpu_subtype = %d\n", (int)hdr_ptr->moh_cpu_subtype); | |
1690 | fprintf (stderr, "\tmoh_vendor_type = %d\n", (int)hdr_ptr->moh_vendor_type); | |
1691 | fprintf (stderr, "\tmoh_load_map_cmd_off = %d\n", (int)hdr_ptr->moh_load_map_cmd_off); | |
1692 | fprintf (stderr, "\tmoh_first_cmd_off = %d\n", (int)hdr_ptr->moh_first_cmd_off); | |
1693 | fprintf (stderr, "\tmoh_sizeofcmds = %d\n", (int)hdr_ptr->moh_sizeofcmds); | |
1694 | fprintf (stderr, "\tmon_n_load_cmds = %d\n", (int)hdr_ptr->moh_n_load_cmds); | |
1695 | fprintf (stderr, "\tmoh_flags = 0x%.8lx", (long)hdr_ptr->moh_flags); | |
1696 | ||
1697 | if (hdr_ptr->moh_flags & MOH_RELOCATABLE_F) | |
1698 | fprintf (stderr, ", relocatable"); | |
1699 | ||
1700 | if (hdr_ptr->moh_flags & MOH_LINKABLE_F) | |
1701 | fprintf (stderr, ", linkable"); | |
1702 | ||
1703 | if (hdr_ptr->moh_flags & MOH_EXECABLE_F) | |
1704 | fprintf (stderr, ", execable"); | |
1705 | ||
1706 | if (hdr_ptr->moh_flags & MOH_EXECUTABLE_F) | |
1707 | fprintf (stderr, ", executable"); | |
1708 | ||
1709 | if (hdr_ptr->moh_flags & MOH_UNRESOLVED_F) | |
1710 | fprintf (stderr, ", unresolved"); | |
1711 | ||
1712 | fprintf (stderr, "\n\n"); | |
1713 | return; | |
1714 | } | |
1715 | ||
1716 | \f | |
1717 | /* Print a short summary of a load command. */ | |
1718 | ||
1719 | static void | |
1720 | print_load_command (load_hdr, offset, number) | |
1721 | load_union_t *load_hdr; | |
1722 | size_t offset; | |
1723 | int number; | |
1724 | { | |
1725 | mo_long_t type = load_hdr->hdr.ldci_cmd_type; | |
1726 | char *type_str = (char *)0; | |
1727 | ||
1728 | switch (type) | |
1729 | { | |
1730 | case LDC_UNDEFINED: type_str = "UNDEFINED"; break; | |
1731 | case LDC_CMD_MAP: type_str = "CMD_MAP"; break; | |
1732 | case LDC_INTERPRETER: type_str = "INTERPRETER"; break; | |
1733 | case LDC_STRINGS: type_str = "STRINGS"; break; | |
1734 | case LDC_REGION: type_str = "REGION"; break; | |
1735 | case LDC_RELOC: type_str = "RELOC"; break; | |
1736 | case LDC_PACKAGE: type_str = "PACKAGE"; break; | |
1737 | case LDC_SYMBOLS: type_str = "SYMBOLS"; break; | |
1738 | case LDC_ENTRY: type_str = "ENTRY"; break; | |
1739 | case LDC_FUNC_TABLE: type_str = "FUNC_TABLE"; break; | |
1740 | case LDC_GEN_INFO: type_str = "GEN_INFO"; break; | |
1741 | } | |
1742 | ||
1743 | fprintf (stderr, | |
1744 | "cmd %2d, sz: 0x%.2lx, coff: 0x%.3lx, doff: 0x%.6lx, dlen: 0x%.6lx", | |
1745 | number, | |
1746 | (long) load_hdr->hdr.ldci_cmd_size, | |
1747 | (long) offset, | |
1748 | (long) load_hdr->hdr.ldci_section_off, | |
1749 | (long) load_hdr->hdr.ldci_section_len); | |
1750 | ||
1751 | if (type_str == (char *)0) | |
1752 | fprintf (stderr, ", ty: unknown (%ld)\n", (long) type); | |
1753 | ||
1754 | else if (type != LDC_REGION) | |
1755 | fprintf (stderr, ", ty: %s\n", type_str); | |
1756 | ||
1757 | else | |
1758 | { | |
1759 | char *region = ""; | |
1760 | switch (load_hdr->region.regc_usage_type) | |
1761 | { | |
1762 | case REG_TEXT_T: region = ", .text"; break; | |
1763 | case REG_DATA_T: region = ", .data"; break; | |
1764 | case REG_BSS_T: region = ", .bss"; break; | |
1765 | case REG_GLUE_T: region = ", .glue"; break; | |
1766 | #if defined (REG_RDATA_T) && defined (REG_SDATA_T) && defined (REG_SBSS_T) /*mips*/ | |
1767 | case REG_RDATA_T: region = ", .rdata"; break; | |
1768 | case REG_SDATA_T: region = ", .sdata"; break; | |
1769 | case REG_SBSS_T: region = ", .sbss"; break; | |
1770 | #endif | |
1771 | } | |
1772 | ||
1773 | fprintf (stderr, ", ty: %s, vaddr: 0x%.8lx, vlen: 0x%.6lx%s\n", | |
1774 | type_str, | |
1775 | (long) load_hdr->region.regc_vm_addr, | |
1776 | (long) load_hdr->region.regc_vm_size, | |
1777 | region); | |
1778 | } | |
1779 | ||
1780 | return; | |
1781 | } | |
1782 | ||
1783 | \f | |
1784 | /* Fatal error when {en,de}code_mach_o_header fails. */ | |
1785 | ||
1786 | static void | |
1787 | bad_header (status) | |
1788 | int status; | |
1789 | { | |
1790 | char *msg = (char *)0; | |
1791 | ||
1792 | switch (status) | |
1793 | { | |
1794 | case MO_ERROR_BAD_MAGIC: msg = "bad magic number"; break; | |
1795 | case MO_ERROR_BAD_HDR_VERS: msg = "bad header version"; break; | |
1796 | case MO_ERROR_BAD_RAW_HDR_VERS: msg = "bad raw header version"; break; | |
1797 | case MO_ERROR_BUF2SML: msg = "raw header buffer too small"; break; | |
1798 | case MO_ERROR_OLD_RAW_HDR_FILE: msg = "old raw header file"; break; | |
1799 | case MO_ERROR_UNSUPPORTED_VERS: msg = "unsupported version"; break; | |
1800 | } | |
1801 | ||
1802 | if (msg == (char *)0) | |
1803 | fatal ("unknown {de,en}code_mach_o_hdr return value %d", status); | |
1804 | else | |
1805 | fatal ("%s", msg); | |
1806 | } | |
1807 | ||
1808 | \f | |
1809 | /* Read a file into a memory buffer. */ | |
1810 | ||
1811 | static struct file_info * | |
1812 | read_file (name, fd, rw) | |
1813 | char *name; /* filename */ | |
1814 | int fd; /* file descriptor */ | |
1815 | int rw; /* read/write */ | |
1816 | { | |
1817 | struct stat stat_pkt; | |
1818 | struct file_info *p = (struct file_info *) xcalloc (sizeof (struct file_info), 1); | |
1819 | #ifdef USE_MMAP | |
1820 | static int page_size; | |
1821 | #endif | |
1822 | ||
1823 | if (fstat (fd, &stat_pkt) < 0) | |
1824 | fatal_perror ("fstat %s", name); | |
1825 | ||
1826 | p->name = name; | |
1827 | p->size = stat_pkt.st_size; | |
1828 | p->rounded_size = stat_pkt.st_size; | |
1829 | p->fd = fd; | |
1830 | p->rw = rw; | |
1831 | ||
1832 | #ifdef USE_MMAP | |
1833 | if (debug) | |
1834 | fprintf (stderr, "mmap %s, %s\n", name, (rw) ? "read/write" : "read-only"); | |
1835 | ||
1836 | if (page_size == 0) | |
1837 | page_size = sysconf (_SC_PAGE_SIZE); | |
1838 | ||
1839 | p->rounded_size = ((p->size + page_size - 1) / page_size) * page_size; | |
1840 | p->start = mmap ((caddr_t)0, | |
1841 | (rw) ? p->rounded_size : p->size, | |
1842 | (rw) ? (PROT_READ | PROT_WRITE) : PROT_READ, | |
1843 | MAP_FILE | MAP_VARIABLE | MAP_SHARED, | |
1844 | fd, | |
1845 | 0L); | |
1846 | ||
1847 | if (p->start != (char *)0 && p->start != (char *)-1) | |
1848 | p->use_mmap = 1; | |
1849 | ||
1850 | else | |
1851 | #endif /* USE_MMAP */ | |
1852 | { | |
1853 | long len; | |
1854 | ||
1855 | if (debug) | |
1856 | fprintf (stderr, "read %s\n", name); | |
1857 | ||
1858 | p->use_mmap = 0; | |
1859 | p->start = xmalloc (p->size); | |
1860 | if (lseek (fd, 0L, SEEK_SET) < 0) | |
1861 | fatal_perror ("lseek to 0 on %s", name); | |
1862 | ||
1863 | len = read (fd, p->start, p->size); | |
1864 | if (len < 0) | |
1865 | fatal_perror ("read %s", name); | |
1866 | ||
1867 | if (len != p->size) | |
1868 | fatal ("read %ld bytes, expected %ld, from %s", len, p->size, name); | |
1869 | } | |
1870 | ||
1871 | return p; | |
1872 | } | |
1873 | ||
1874 | \f | |
1875 | /* Do anything necessary to write a file back from memory. */ | |
1876 | ||
1877 | static void | |
1878 | end_file (ptr) | |
1879 | struct file_info *ptr; /* file information block */ | |
1880 | { | |
1881 | #ifdef USE_MMAP | |
1882 | if (ptr->use_mmap) | |
1883 | { | |
1884 | if (ptr->rw) | |
1885 | { | |
1886 | if (debug) | |
1887 | fprintf (stderr, "msync %s\n", ptr->name); | |
1888 | ||
1889 | if (msync (ptr->start, ptr->rounded_size, MS_ASYNC)) | |
1890 | fatal_perror ("msync %s", ptr->name); | |
1891 | } | |
1892 | ||
1893 | if (debug) | |
1894 | fprintf (stderr, "munmap %s\n", ptr->name); | |
1895 | ||
1896 | if (munmap (ptr->start, ptr->size)) | |
1897 | fatal_perror ("munmap %s", ptr->name); | |
1898 | } | |
1899 | else | |
1900 | #endif /* USE_MMAP */ | |
1901 | { | |
1902 | if (ptr->rw) | |
1903 | { | |
1904 | long len; | |
1905 | ||
1906 | if (debug) | |
1907 | fprintf (stderr, "write %s\n", ptr->name); | |
1908 | ||
1909 | if (lseek (ptr->fd, 0L, SEEK_SET) < 0) | |
1910 | fatal_perror ("lseek to 0 on %s", ptr->name); | |
1911 | ||
1912 | len = write (ptr->fd, ptr->start, ptr->size); | |
1913 | if (len < 0) | |
1914 | fatal_perror ("read %s", ptr->name); | |
1915 | ||
1916 | if (len != ptr->size) | |
1917 | fatal ("wrote %ld bytes, expected %ld, to %s", len, ptr->size, ptr->name); | |
1918 | } | |
1919 | ||
1920 | free ((generic *)ptr->start); | |
1921 | } | |
1922 | ||
1923 | free ((generic *)ptr); | |
1924 | } | |
1925 | ||
1926 | #endif /* OBJECT_FORMAT_ROSE */ |