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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 | ||
4b19dee8 | 5 | Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. |
4e81a331 RS |
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> | |
4e81a331 | 31 | #include <ctype.h> |
4e81a331 RS |
32 | #include <errno.h> |
33 | #include <signal.h> | |
34 | #include <sys/file.h> | |
35 | #include <sys/stat.h> | |
e6701a47 | 36 | #ifdef NO_WAIT_H |
4e81a331 | 37 | #include <sys/wait.h> |
e6701a47 | 38 | #endif |
4e81a331 | 39 | |
ed5b9462 RS |
40 | #ifndef errno |
41 | extern int errno; | |
42 | #endif | |
43 | ||
842a1144 | 44 | #if defined(bsd4_4) || defined(__NetBSD__) |
5d672cd7 JW |
45 | extern const char *const sys_errlist[]; |
46 | #else | |
47 | extern char *sys_errlist[]; | |
48 | #endif | |
49 | extern int sys_nerr; | |
50 | ||
4e81a331 RS |
51 | #define COLLECT |
52 | ||
53 | #include "config.h" | |
54 | ||
55 | #ifndef __STDC__ | |
4e81a331 | 56 | #define generic char |
4e81a331 RS |
57 | #define const |
58 | ||
59 | #else | |
4e81a331 | 60 | #define generic void |
4e81a331 RS |
61 | #endif |
62 | ||
ed5b9462 RS |
63 | #ifdef USG |
64 | #define vfork fork | |
65 | #endif | |
66 | ||
4d1a011f RK |
67 | /* Add prototype support. */ |
68 | #ifndef PROTO | |
69 | #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__) | |
70 | #define PROTO(ARGS) ARGS | |
71 | #else | |
72 | #define PROTO(ARGS) () | |
73 | #endif | |
74 | #endif | |
75 | ||
ed5b9462 RS |
76 | #ifndef R_OK |
77 | #define R_OK 4 | |
78 | #define W_OK 2 | |
79 | #define X_OK 1 | |
80 | #endif | |
81 | ||
0b90f9c2 ILT |
82 | #ifndef WIFSIGNALED |
83 | #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) | |
84 | #endif | |
85 | #ifndef WTERMSIG | |
86 | #define WTERMSIG(S) ((S) & 0x7f) | |
87 | #endif | |
88 | #ifndef WIFEXITED | |
89 | #define WIFEXITED(S) (((S) & 0xff) == 0) | |
90 | #endif | |
91 | #ifndef WEXITSTATUS | |
92 | #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) | |
93 | #endif | |
94 | ||
ed5b9462 RS |
95 | /* On MSDOS, write temp files in current dir |
96 | because there's no place else we can expect to use. */ | |
4b19dee8 | 97 | #ifdef __MSDOS__ |
ed5b9462 RS |
98 | #ifndef P_tmpdir |
99 | #define P_tmpdir "./" | |
100 | #endif | |
101 | #endif | |
102 | \f | |
103 | /* On certain systems, we have code that works by scanning the object file | |
104 | directly. But this code uses system-specific header files and library | |
bb59f9a6 RS |
105 | functions, so turn it off in a cross-compiler. Likewise, the names of |
106 | the utilities aren't correct for a cross-compiler; we have to hope that | |
107 | cross-versions are in the proper directories. */ | |
ed5b9462 RS |
108 | |
109 | #ifdef CROSS_COMPILE | |
110 | #undef OBJECT_FORMAT_COFF | |
111 | #undef OBJECT_FORMAT_ROSE | |
bb59f9a6 RS |
112 | #undef MD_EXEC_PREFIX |
113 | #undef REAL_LD_FILE_NAME | |
114 | #undef REAL_NM_FILE_NAME | |
115 | #undef REAL_STRIP_FILE_NAME | |
ed5b9462 RS |
116 | #endif |
117 | ||
118 | /* If we can't use a special method, use the ordinary one: | |
119 | run nm to find what symbols are present. | |
120 | In a cross-compiler, this means you need a cross nm, | |
121 | but that isn't quite as unpleasant as special headers. */ | |
122 | ||
123 | #if !defined (OBJECT_FORMAT_COFF) && !defined (OBJECT_FORMAT_ROSE) | |
124 | #define OBJECT_FORMAT_NONE | |
125 | #endif | |
126 | ||
127 | #ifdef OBJECT_FORMAT_COFF | |
128 | ||
129 | #include <a.out.h> | |
130 | #include <ar.h> | |
131 | ||
132 | #ifdef UMAX | |
133 | #include <sgs.h> | |
134 | #endif | |
135 | ||
033ba47c RS |
136 | /* Many versions of ldfcn.h define these. */ |
137 | #ifdef FREAD | |
ed5b9462 RS |
138 | #undef FREAD |
139 | #undef FWRITE | |
140 | #endif | |
141 | ||
142 | #include <ldfcn.h> | |
143 | ||
7243ba7d RK |
144 | /* Some systems have an ISCOFF macro, but others do not. In some cases |
145 | the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines | |
146 | that either do not have an ISCOFF macro in /usr/include or for those | |
147 | where it is wrong. */ | |
148 | ||
e99467d2 RS |
149 | #ifndef MY_ISCOFF |
150 | #define MY_ISCOFF(X) ISCOFF (X) | |
151 | #endif | |
152 | ||
ed5b9462 RS |
153 | #endif /* OBJECT_FORMAT_COFF */ |
154 | ||
4e81a331 RS |
155 | #ifdef OBJECT_FORMAT_ROSE |
156 | ||
157 | #ifdef _OSF_SOURCE | |
158 | #define USE_MMAP | |
159 | #endif | |
160 | ||
161 | #ifdef USE_MMAP | |
162 | #include <sys/mman.h> | |
163 | #endif | |
164 | ||
165 | #include <unistd.h> | |
166 | #include <mach_o_format.h> | |
167 | #include <mach_o_header.h> | |
168 | #include <mach_o_vals.h> | |
169 | #include <mach_o_types.h> | |
ed5b9462 | 170 | |
4e81a331 RS |
171 | #endif /* OBJECT_FORMAT_ROSE */ |
172 | ||
ed5b9462 RS |
173 | #ifdef OBJECT_FORMAT_NONE |
174 | ||
4e81a331 RS |
175 | /* Default flags to pass to nm. */ |
176 | #ifndef NM_FLAGS | |
177 | #define NM_FLAGS "-p" | |
178 | #endif | |
179 | ||
ed5b9462 | 180 | #endif /* OBJECT_FORMAT_NONE */ |
d6cf3187 RS |
181 | |
182 | /* Some systems use __main in a way incompatible with its use in gcc, in these | |
183 | cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to | |
184 | give the same symbol without quotes for an alternative entry point. You | |
185 | must define both, or niether. */ | |
186 | #ifndef NAME__MAIN | |
187 | #define NAME__MAIN "__main" | |
188 | #define SYMBOL__MAIN __main | |
189 | #endif | |
190 | ||
4e81a331 RS |
191 | \f |
192 | /* Linked lists of constructor and destructor names. */ | |
193 | ||
194 | struct id | |
195 | { | |
196 | struct id *next; | |
197 | int sequence; | |
198 | char name[1]; | |
199 | }; | |
200 | ||
201 | struct head | |
202 | { | |
203 | struct id *first; | |
204 | struct id *last; | |
205 | int number; | |
206 | }; | |
207 | ||
208 | /* Enumeration giving which pass this is for scanning the program file. */ | |
209 | ||
210 | enum pass { | |
211 | PASS_FIRST, /* without constructors */ | |
212 | PASS_SECOND /* with constructors linked in */ | |
213 | }; | |
214 | ||
ed5b9462 | 215 | #ifndef NO_SYS_SIGLIST |
1b7ca660 | 216 | #ifndef DONT_DECLARE_SYS_SIGLIST |
4e81a331 | 217 | extern char *sys_siglist[]; |
ed5b9462 | 218 | #endif |
1b7ca660 | 219 | #endif |
4e81a331 RS |
220 | extern char *version_string; |
221 | ||
222 | static int vflag; /* true if -v */ | |
223 | static int rflag; /* true if -r */ | |
a87104d9 | 224 | static int strip_flag; /* true if -s */ |
4e81a331 RS |
225 | |
226 | static int debug; /* true if -debug */ | |
227 | ||
228 | static int temp_filename_length; /* Length of temp_filename */ | |
229 | static char *temp_filename; /* Base of temp filenames */ | |
230 | static char *c_file; /* <xxx>.c for constructor/destructor list. */ | |
231 | static char *o_file; /* <xxx>.o for constructor/destructor list. */ | |
0cdd3ddd | 232 | static char *output_file; /* Output file for ld. */ |
4e81a331 | 233 | static char *nm_file_name; /* pathname of nm */ |
a87104d9 | 234 | static char *strip_file_name; /* pathname of strip */ |
4e81a331 RS |
235 | |
236 | static struct head constructors; /* list of constructors found */ | |
237 | static struct head destructors; /* list of destructors found */ | |
238 | ||
ed5b9462 RS |
239 | extern char *getenv (); |
240 | extern char *mktemp (); | |
4d1a011f RK |
241 | extern FILE *fdopen (); |
242 | ||
243 | /* Structure to hold all the directories in which to search for files to | |
244 | execute. */ | |
245 | ||
246 | struct prefix_list | |
247 | { | |
248 | char *prefix; /* String to prepend to the path. */ | |
249 | struct prefix_list *next; /* Next in linked list. */ | |
250 | }; | |
251 | ||
252 | struct path_prefix | |
253 | { | |
254 | struct prefix_list *plist; /* List of prefixes to try */ | |
255 | int max_len; /* Max length of a prefix in PLIST */ | |
256 | char *name; /* Name of this list (used in config stuff) */ | |
257 | }; | |
258 | ||
259 | static void my_exit PROTO((int)); | |
260 | static void handler PROTO((int)); | |
261 | static int is_ctor_dtor PROTO((char *)); | |
262 | static void choose_temp_base PROTO((void)); | |
263 | static int is_in_prefix_list PROTO((struct path_prefix *, char *, int)); | |
264 | static char *find_a_file PROTO((struct path_prefix *, char *)); | |
265 | static void add_prefix PROTO((struct path_prefix *, char *)); | |
266 | static void prefix_from_env PROTO((char *, struct path_prefix *)); | |
267 | static void do_wait PROTO((char *)); | |
268 | static void fork_execute PROTO((char *, char **)); | |
269 | static void maybe_unlink PROTO((char *)); | |
270 | static void add_to_list PROTO((struct head *, char *)); | |
271 | static void write_list PROTO((FILE *, char *, struct id *)); | |
272 | static void write_list_with_asm PROTO((FILE *, char *, struct id *)); | |
273 | static void write_c_file PROTO((FILE *, char *)); | |
274 | static void scan_prog_file PROTO((char *, enum pass)); | |
ed5b9462 RS |
275 | |
276 | generic *xcalloc (); | |
277 | generic *xmalloc (); | |
3f7cc57a MS |
278 | |
279 | extern char *index (); | |
280 | extern char *rindex (); | |
4e81a331 | 281 | \f |
f28e8a68 | 282 | #ifdef NO_DUP2 |
4d1a011f | 283 | int |
f28e8a68 RS |
284 | dup2 (oldfd, newfd) |
285 | int oldfd; | |
286 | int newfd; | |
287 | { | |
288 | int fdtmp[256]; | |
289 | int fdx = 0; | |
290 | int fd; | |
291 | ||
292 | if (oldfd == newfd) | |
eadbc961 | 293 | return oldfd; |
f28e8a68 | 294 | close (newfd); |
eadbc961 | 295 | while ((fd = dup (oldfd)) != newfd && fd >= 0) /* good enough for low fd's */ |
f28e8a68 RS |
296 | fdtmp[fdx++] = fd; |
297 | while (fdx > 0) | |
298 | close (fdtmp[--fdx]); | |
4d1a011f | 299 | |
eadbc961 | 300 | return fd; |
f28e8a68 RS |
301 | } |
302 | #endif | |
303 | ||
ed5b9462 | 304 | char * |
1fab8e81 | 305 | my_strerror (e) |
4e81a331 RS |
306 | int e; |
307 | { | |
4e81a331 | 308 | |
aae807c0 RK |
309 | #ifdef HAVE_STRERROR |
310 | return strerror (e); | |
311 | ||
312 | #else | |
313 | ||
314 | static char buffer[30]; | |
4e81a331 RS |
315 | if (!e) |
316 | return ""; | |
317 | ||
318 | if (e > 0 && e < sys_nerr) | |
319 | return sys_errlist[e]; | |
320 | ||
321 | sprintf (buffer, "Unknown error %d", e); | |
322 | return buffer; | |
aae807c0 | 323 | #endif |
4e81a331 | 324 | } |
4e81a331 RS |
325 | \f |
326 | /* Delete tempfiles and exit function. */ | |
327 | ||
328 | static void | |
329 | my_exit (status) | |
330 | int status; | |
331 | { | |
ed5b9462 | 332 | if (c_file != 0 && c_file[0]) |
4e81a331 RS |
333 | maybe_unlink (c_file); |
334 | ||
ed5b9462 | 335 | if (o_file != 0 && o_file[0]) |
4e81a331 RS |
336 | maybe_unlink (o_file); |
337 | ||
0cdd3ddd RS |
338 | if (status != 0 && output_file != 0 && output_file[0]) |
339 | maybe_unlink (output_file); | |
340 | ||
4e81a331 RS |
341 | exit (status); |
342 | } | |
343 | ||
344 | \f | |
4e81a331 RS |
345 | /* Die when sys call fails. */ |
346 | ||
4e81a331 | 347 | static void |
1fab8e81 | 348 | fatal_perror (string, arg1, arg2, arg3) |
bd1a74b1 | 349 | char *string, *arg1, *arg2, *arg3; |
4e81a331 | 350 | { |
4e81a331 RS |
351 | int e = errno; |
352 | ||
626e18ea | 353 | fprintf (stderr, "collect2: "); |
1fab8e81 RS |
354 | fprintf (stderr, string, arg1, arg2, arg3); |
355 | fprintf (stderr, ": %s\n", my_strerror (e)); | |
4e81a331 RS |
356 | my_exit (1); |
357 | } | |
358 | ||
359 | /* Just die. */ | |
360 | ||
4e81a331 | 361 | static void |
1fab8e81 | 362 | fatal (string, arg1, arg2, arg3) |
bd1a74b1 | 363 | char *string, *arg1, *arg2, *arg3; |
4e81a331 | 364 | { |
626e18ea | 365 | fprintf (stderr, "collect2: "); |
1fab8e81 | 366 | fprintf (stderr, string, arg1, arg2, arg3); |
4e81a331 | 367 | fprintf (stderr, "\n"); |
4e81a331 RS |
368 | my_exit (1); |
369 | } | |
370 | ||
371 | /* Write error message. */ | |
372 | ||
4e81a331 | 373 | static void |
1fab8e81 | 374 | error (string, arg1, arg2, arg3, arg4) |
bd1a74b1 | 375 | char *string, *arg1, *arg2, *arg3, *arg4; |
4e81a331 | 376 | { |
626e18ea | 377 | fprintf (stderr, "collect2: "); |
1fab8e81 | 378 | fprintf (stderr, string, arg1, arg2, arg3, arg4); |
4e81a331 | 379 | fprintf (stderr, "\n"); |
4e81a331 RS |
380 | } |
381 | ||
4e81a331 RS |
382 | /* In case obstack is linked in, and abort is defined to fancy_abort, |
383 | provide a default entry. */ | |
384 | ||
385 | void | |
386 | fancy_abort () | |
387 | { | |
388 | fatal ("internal error"); | |
389 | } | |
390 | ||
391 | \f | |
392 | static void | |
393 | handler (signo) | |
394 | int signo; | |
395 | { | |
b31a1e3f | 396 | if (c_file != 0 && c_file[0]) |
4e81a331 RS |
397 | maybe_unlink (c_file); |
398 | ||
b31a1e3f | 399 | if (o_file != 0 && o_file[0]) |
4e81a331 RS |
400 | maybe_unlink (o_file); |
401 | ||
402 | signal (signo, SIG_DFL); | |
4e81a331 RS |
403 | kill (getpid (), signo); |
404 | } | |
405 | ||
406 | \f | |
407 | generic * | |
408 | xcalloc (size1, size2) | |
ed5b9462 | 409 | int size1, size2; |
4e81a331 | 410 | { |
ed5b9462 | 411 | generic *ptr = (generic *) calloc (size1, size2); |
4e81a331 RS |
412 | if (ptr) |
413 | return ptr; | |
414 | ||
1fab8e81 | 415 | fatal ("out of memory"); |
4e81a331 RS |
416 | return (generic *)0; |
417 | } | |
418 | ||
419 | generic * | |
420 | xmalloc (size) | |
ed5b9462 | 421 | int size; |
4e81a331 | 422 | { |
ed5b9462 | 423 | generic *ptr = (generic *) malloc (size); |
4e81a331 RS |
424 | if (ptr) |
425 | return ptr; | |
426 | ||
1fab8e81 | 427 | fatal ("out of memory"); |
4e81a331 RS |
428 | return (generic *)0; |
429 | } | |
430 | ||
ed5b9462 RS |
431 | /* Make a copy of a string INPUT with size SIZE. */ |
432 | ||
433 | char * | |
434 | savestring (input, size) | |
435 | char *input; | |
436 | int size; | |
437 | { | |
438 | char *output = (char *) xmalloc (size + 1); | |
1fab8e81 RS |
439 | bcopy (input, output, size); |
440 | output[size] = 0; | |
ed5b9462 RS |
441 | return output; |
442 | } | |
443 | \f | |
444 | /* Decide whether the given symbol is: | |
445 | a constructor (1), a destructor (2), or neither (0). */ | |
446 | ||
447 | static int | |
448 | is_ctor_dtor (s) | |
449 | char *s; | |
450 | { | |
451 | struct names { char *name; int len; int ret; int two_underscores; }; | |
452 | ||
453 | register struct names *p; | |
454 | register int ch; | |
455 | register char *orig_s = s; | |
456 | ||
457 | static struct names special[] = { | |
458 | #ifdef NO_DOLLAR_IN_LABEL | |
7cbfceab | 459 | #ifdef NO_DOT_IN_LABEL |
c52d2678 RS |
460 | { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 }, |
461 | { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 }, | |
7cbfceab | 462 | #else |
ed5b9462 RS |
463 | { "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 }, |
464 | { "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 }, | |
7cbfceab | 465 | #endif |
ed5b9462 RS |
466 | #else |
467 | { "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 }, | |
5555d6d1 | 468 | { "GLOBAL_$D$", sizeof ("GLOBAL_$D$")-1, 2, 0 }, |
ed5b9462 | 469 | #endif |
c1af0346 RS |
470 | #ifdef CFRONT_LOSSAGE /* Don't collect cfront initialization functions. |
471 | cfront has its own linker procedure to collect them; | |
472 | if collect2 gets them too, they get collected twice | |
473 | when the cfront procedure is run and the compiler used | |
474 | for linking happens to be GCC. */ | |
ed5b9462 RS |
475 | { "sti__", sizeof ("sti__")-1, 1, 1 }, |
476 | { "std__", sizeof ("std__")-1, 2, 1 }, | |
7a646ee5 | 477 | #endif /* CFRONT_LOSSAGE */ |
ed5b9462 RS |
478 | { NULL, 0, 0, 0 } |
479 | }; | |
480 | ||
481 | while ((ch = *s) == '_') | |
482 | ++s; | |
483 | ||
484 | if (s == orig_s) | |
485 | return 0; | |
486 | ||
487 | for (p = &special[0]; p->len > 0; p++) | |
488 | { | |
489 | if (ch == p->name[0] | |
490 | && (!p->two_underscores || ((s - orig_s) >= 2)) | |
491 | && strncmp(s, p->name, p->len) == 0) | |
492 | { | |
493 | return p->ret; | |
494 | } | |
495 | } | |
496 | return 0; | |
497 | } | |
498 | ||
4e81a331 RS |
499 | \f |
500 | /* Compute a string to use as the base of all temporary file names. | |
501 | It is substituted for %g. */ | |
502 | ||
503 | static void | |
ed5b9462 | 504 | choose_temp_base () |
4e81a331 RS |
505 | { |
506 | char *base = getenv ("TMPDIR"); | |
507 | int len; | |
508 | ||
509 | if (base == (char *)0) | |
510 | { | |
511 | #ifdef P_tmpdir | |
512 | if (access (P_tmpdir, R_OK | W_OK) == 0) | |
513 | base = P_tmpdir; | |
514 | #endif | |
515 | if (base == (char *)0) | |
516 | { | |
517 | if (access ("/usr/tmp", R_OK | W_OK) == 0) | |
518 | base = "/usr/tmp/"; | |
519 | else | |
520 | base = "/tmp/"; | |
521 | } | |
522 | } | |
523 | ||
524 | len = strlen (base); | |
aee42e27 | 525 | temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1); |
4e81a331 RS |
526 | strcpy (temp_filename, base); |
527 | if (len > 0 && temp_filename[len-1] != '/') | |
528 | temp_filename[len++] = '/'; | |
529 | strcpy (temp_filename + len, "ccXXXXXX"); | |
530 | ||
531 | mktemp (temp_filename); | |
532 | temp_filename_length = strlen (temp_filename); | |
533 | } | |
bb59f9a6 | 534 | \f |
45840c57 RK |
535 | /* Routine to add variables to the environment. */ |
536 | ||
537 | #ifndef HAVE_PUTENV | |
538 | ||
4d1a011f | 539 | int |
45840c57 RK |
540 | putenv (str) |
541 | char *str; | |
542 | { | |
543 | #ifndef VMS /* nor about VMS */ | |
544 | ||
545 | extern char **environ; | |
546 | char **old_environ = environ; | |
547 | char **envp; | |
548 | int num_envs = 0; | |
549 | int name_len = 1; | |
45840c57 RK |
550 | char *p = str; |
551 | int ch; | |
552 | ||
553 | while ((ch = *p++) != '\0' && ch != '=') | |
554 | name_len++; | |
555 | ||
556 | if (!ch) | |
557 | abort (); | |
558 | ||
559 | /* Search for replacing an existing environment variable, and | |
560 | count the number of total environment variables. */ | |
561 | for (envp = old_environ; *envp; envp++) | |
562 | { | |
563 | num_envs++; | |
564 | if (!strncmp (str, *envp, name_len)) | |
565 | { | |
566 | *envp = str; | |
4d1a011f | 567 | return 0; |
45840c57 RK |
568 | } |
569 | } | |
570 | ||
571 | /* Add a new environment variable */ | |
572 | environ = (char **) xmalloc (sizeof (char *) * (num_envs+2)); | |
573 | *environ = str; | |
4c9a05bc RK |
574 | bcopy ((char *) old_environ, (char *) (environ + 1), |
575 | sizeof (char *) * (num_envs+1)); | |
576 | ||
4d1a011f | 577 | return 0; |
45840c57 RK |
578 | #endif /* VMS */ |
579 | } | |
580 | ||
581 | #endif /* HAVE_PUTENV */ | |
582 | \f | |
bb59f9a6 RS |
583 | /* By default, colon separates directories in a path. */ |
584 | #ifndef PATH_SEPARATOR | |
585 | #define PATH_SEPARATOR ':' | |
586 | #endif | |
587 | ||
bb59f9a6 RS |
588 | /* We maintain two prefix lists: one from COMPILER_PATH environment variable |
589 | and one from the PATH variable. */ | |
590 | ||
591 | static struct path_prefix cpath, path; | |
592 | ||
593 | #ifdef CROSS_COMPILE | |
594 | /* This is the name of the target machine. We use it to form the name | |
595 | of the files to execute. */ | |
596 | ||
597 | static char *target_machine = TARGET_MACHINE; | |
598 | #endif | |
720653a3 | 599 | |
45840c57 | 600 | /* Names under which we were executed. Never return one of those files in our |
720653a3 RK |
601 | searches. */ |
602 | ||
7223feb0 | 603 | static struct path_prefix our_file_names; |
bb59f9a6 | 604 | \f |
7223feb0 DE |
605 | /* Determine if STRING is in PPREFIX. |
606 | ||
607 | This utility is currently only used to look up file names. Prefix lists | |
608 | record directory names. This matters to us because the latter has a | |
609 | trailing slash, so I've added a flag to handle both. */ | |
610 | ||
611 | static int | |
612 | is_in_prefix_list (pprefix, string, filep) | |
613 | struct path_prefix *pprefix; | |
614 | char *string; | |
615 | int filep; | |
616 | { | |
617 | struct prefix_list *pl; | |
618 | ||
619 | if (filep) | |
620 | { | |
621 | int len = strlen (string); | |
622 | ||
623 | for (pl = pprefix->plist; pl; pl = pl->next) | |
624 | { | |
625 | if (strncmp (pl->prefix, string, len) == 0 | |
626 | && strcmp (pl->prefix + len, "/") == 0) | |
627 | return 1; | |
628 | } | |
629 | } | |
630 | else | |
631 | { | |
632 | for (pl = pprefix->plist; pl; pl = pl->next) | |
633 | { | |
634 | if (strcmp (pl->prefix, string) == 0) | |
635 | return 1; | |
636 | } | |
637 | } | |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
bb59f9a6 RS |
642 | /* Search for NAME using prefix list PPREFIX. We only look for executable |
643 | files. | |
644 | ||
645 | Return 0 if not found, otherwise return its name, allocated with malloc. */ | |
646 | ||
647 | static char * | |
648 | find_a_file (pprefix, name) | |
649 | struct path_prefix *pprefix; | |
650 | char *name; | |
651 | { | |
652 | char *temp; | |
653 | struct prefix_list *pl; | |
654 | int len = pprefix->max_len + strlen (name) + 1; | |
655 | ||
656 | #ifdef EXECUTABLE_SUFFIX | |
657 | len += strlen (EXECUTABLE_SUFFIX); | |
658 | #endif | |
659 | ||
660 | temp = xmalloc (len); | |
661 | ||
662 | /* Determine the filename to execute (special case for absolute paths). */ | |
663 | ||
664 | if (*name == '/') | |
665 | { | |
e8fda1f9 | 666 | if (access (name, X_OK) == 0) |
bb59f9a6 RS |
667 | { |
668 | strcpy (temp, name); | |
669 | return temp; | |
670 | } | |
671 | } | |
672 | else | |
673 | for (pl = pprefix->plist; pl; pl = pl->next) | |
674 | { | |
675 | strcpy (temp, pl->prefix); | |
676 | strcat (temp, name); | |
7223feb0 | 677 | if (! is_in_prefix_list (&our_file_names, temp, 1) |
aee3a549 RK |
678 | /* This is a kludge, but there seems no way around it. */ |
679 | && strcmp (temp, "./ld") != 0 | |
45840c57 | 680 | && access (temp, X_OK) == 0) |
bb59f9a6 RS |
681 | return temp; |
682 | ||
683 | #ifdef EXECUTABLE_SUFFIX | |
684 | /* Some systems have a suffix for executable files. | |
685 | So try appending that. */ | |
686 | strcat (temp, EXECUTABLE_SUFFIX); | |
7223feb0 | 687 | if (! is_in_prefix_list (&our_file_names, temp, 1) |
45840c57 | 688 | && access (temp, X_OK) == 0) |
bb59f9a6 RS |
689 | return temp; |
690 | #endif | |
691 | } | |
692 | ||
693 | free (temp); | |
694 | return 0; | |
695 | } | |
696 | ||
697 | /* Add an entry for PREFIX to prefix list PPREFIX. */ | |
698 | ||
699 | static void | |
700 | add_prefix (pprefix, prefix) | |
701 | struct path_prefix *pprefix; | |
702 | char *prefix; | |
703 | { | |
704 | struct prefix_list *pl, **prev; | |
705 | int len; | |
706 | ||
707 | if (pprefix->plist) | |
708 | { | |
709 | for (pl = pprefix->plist; pl->next; pl = pl->next) | |
710 | ; | |
711 | prev = &pl->next; | |
712 | } | |
713 | else | |
714 | prev = &pprefix->plist; | |
715 | ||
716 | /* Keep track of the longest prefix */ | |
717 | ||
718 | len = strlen (prefix); | |
719 | if (len > pprefix->max_len) | |
720 | pprefix->max_len = len; | |
721 | ||
722 | pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list)); | |
723 | pl->prefix = savestring (prefix, len); | |
724 | ||
725 | if (*prev) | |
726 | pl->next = *prev; | |
727 | else | |
728 | pl->next = (struct prefix_list *) 0; | |
729 | *prev = pl; | |
730 | } | |
731 | \f | |
732 | /* Take the value of the environment variable ENV, break it into a path, and | |
733 | add of the entries to PPREFIX. */ | |
734 | ||
735 | static void | |
736 | prefix_from_env (env, pprefix) | |
737 | char *env; | |
738 | struct path_prefix *pprefix; | |
739 | { | |
740 | char *p = getenv (env); | |
741 | ||
742 | if (p) | |
743 | { | |
744 | char *startp, *endp; | |
745 | char *nstore = (char *) xmalloc (strlen (p) + 3); | |
746 | ||
747 | startp = endp = p; | |
748 | while (1) | |
749 | { | |
750 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
751 | { | |
752 | strncpy (nstore, startp, endp-startp); | |
753 | if (endp == startp) | |
754 | { | |
755 | strcpy (nstore, "./"); | |
756 | } | |
757 | else if (endp[-1] != '/') | |
758 | { | |
759 | nstore[endp-startp] = '/'; | |
760 | nstore[endp-startp+1] = 0; | |
761 | } | |
762 | else | |
763 | nstore[endp-startp] = 0; | |
4e81a331 | 764 | |
bb59f9a6 RS |
765 | add_prefix (pprefix, nstore); |
766 | if (*endp == 0) | |
767 | break; | |
768 | endp = startp = endp + 1; | |
769 | } | |
770 | else | |
771 | endp++; | |
772 | } | |
773 | } | |
774 | } | |
4e81a331 RS |
775 | \f |
776 | /* Main program. */ | |
777 | ||
778 | int | |
779 | main (argc, argv) | |
780 | int argc; | |
781 | char *argv[]; | |
782 | { | |
bb59f9a6 RS |
783 | char *ld_suffix = "ld"; |
784 | char *full_ld_suffix = ld_suffix; | |
785 | char *real_ld_suffix = "real-ld"; | |
e8fda1f9 | 786 | char *full_real_ld_suffix = real_ld_suffix; |
98552524 | 787 | #if 0 |
bb59f9a6 RS |
788 | char *gld_suffix = "gld"; |
789 | char *full_gld_suffix = gld_suffix; | |
98552524 | 790 | #endif |
bb59f9a6 RS |
791 | char *nm_suffix = "nm"; |
792 | char *full_nm_suffix = nm_suffix; | |
793 | char *gnm_suffix = "gnm"; | |
794 | char *full_gnm_suffix = gnm_suffix; | |
795 | char *strip_suffix = "strip"; | |
796 | char *full_strip_suffix = strip_suffix; | |
797 | char *gstrip_suffix = "gstrip"; | |
798 | char *full_gstrip_suffix = gstrip_suffix; | |
4e81a331 RS |
799 | char *arg; |
800 | FILE *outf; | |
801 | char *ld_file_name; | |
802 | char *c_file_name; | |
588e387f | 803 | char *collect_name; |
7223feb0 | 804 | char *collect_names; |
4e81a331 | 805 | char *p; |
ed5b9462 RS |
806 | char **c_argv; |
807 | char **c_ptr; | |
4e81a331 RS |
808 | char **ld1_argv = (char **) xcalloc (sizeof (char *), argc+2); |
809 | char **ld1 = ld1_argv; | |
810 | char **ld2_argv = (char **) xcalloc (sizeof (char *), argc+5); | |
811 | char **ld2 = ld2_argv; | |
812 | int first_file; | |
ed5b9462 | 813 | int num_c_args = argc+7; |
4e81a331 RS |
814 | |
815 | #ifdef DEBUG | |
816 | debug = 1; | |
817 | vflag = 1; | |
818 | #endif | |
819 | ||
0cdd3ddd RS |
820 | output_file = "a.out"; |
821 | ||
45840c57 | 822 | /* We must check that we do not call ourselves in an infinite |
588e387f DE |
823 | recursion loop. We append the name used for us to the COLLECT_NAMES |
824 | environment variable. | |
45840c57 | 825 | |
7223feb0 DE |
826 | In practice, collect will rarely invoke itself. This can happen now |
827 | that we are no longer called gld. A perfect example is when running | |
828 | gcc in a build directory that has been installed. When looking for | |
829 | ld's, we'll find our installed version and believe that's the real ld. */ | |
45840c57 | 830 | |
588e387f DE |
831 | /* We must also append COLLECT_NAME to COLLECT_NAMES to watch for the |
832 | previous version of collect (the one that used COLLECT_NAME and only | |
833 | handled two levels of recursion). If we don't we may mutually recurse | |
834 | forever. This can happen (I think) when bootstrapping the old version | |
835 | and a new one is installed (rare, but we should handle it). | |
836 | ??? Hopefully references to COLLECT_NAME can be removed at some point. */ | |
837 | ||
838 | collect_name = (char *) getenv ("COLLECT_NAME"); | |
7223feb0 | 839 | collect_names = (char *) getenv ("COLLECT_NAMES"); |
45840c57 | 840 | |
7223feb0 | 841 | p = (char *) xmalloc (strlen ("COLLECT_NAMES=") |
588e387f | 842 | + (collect_name ? strlen (collect_name) + 1 : 0) |
7223feb0 DE |
843 | + (collect_names ? strlen (collect_names) + 1 : 0) |
844 | + strlen (argv[0]) + 1); | |
588e387f DE |
845 | strcpy (p, "COLLECT_NAMES="); |
846 | if (collect_name != 0) | |
847 | sprintf (p + strlen (p), "%s%c", collect_name, PATH_SEPARATOR); | |
7223feb0 | 848 | if (collect_names != 0) |
588e387f DE |
849 | sprintf (p + strlen (p), "%s%c", collect_names, PATH_SEPARATOR); |
850 | strcat (p, argv[0]); | |
45840c57 RK |
851 | putenv (p); |
852 | ||
7223feb0 DE |
853 | prefix_from_env ("COLLECT_NAMES", &our_file_names); |
854 | ||
588e387f DE |
855 | /* Set environment variable COLLECT_NAME to our name so the previous version |
856 | of collect won't find us. If it does we'll mutually recurse forever. | |
857 | This can happen when bootstrapping the new version and an old version is | |
858 | installed. | |
859 | ??? Hopefully this bit of code can be removed at some point. */ | |
860 | ||
861 | p = xmalloc (strlen ("COLLECT_NAME=") + strlen (argv[0]) + 1); | |
862 | sprintf (p, "COLLECT_NAME=%s", argv[0]); | |
863 | putenv (p); | |
864 | ||
ed5b9462 RS |
865 | p = (char *) getenv ("COLLECT_GCC_OPTIONS"); |
866 | if (p) | |
867 | while (*p) | |
868 | { | |
869 | char *q = p; | |
870 | while (*q && *q != ' ') q++; | |
17704846 | 871 | if (*p == '-' && p[1] == 'm') |
ed5b9462 RS |
872 | num_c_args++; |
873 | ||
874 | if (*q) q++; | |
875 | p = q; | |
876 | } | |
877 | ||
878 | c_ptr = c_argv = (char **) xcalloc (sizeof (char *), num_c_args); | |
879 | ||
4e81a331 RS |
880 | if (argc < 2) |
881 | fatal ("no arguments"); | |
882 | ||
8ab861c7 | 883 | #ifdef SIGQUIT |
915ee623 JW |
884 | if (signal (SIGQUIT, SIG_IGN) != SIG_IGN) |
885 | signal (SIGQUIT, handler); | |
8ab861c7 | 886 | #endif |
915ee623 JW |
887 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
888 | signal (SIGINT, handler); | |
8ab861c7 | 889 | #ifdef SIGALRM |
915ee623 JW |
890 | if (signal (SIGALRM, SIG_IGN) != SIG_IGN) |
891 | signal (SIGALRM, handler); | |
8ab861c7 RK |
892 | #endif |
893 | #ifdef SIGHUP | |
915ee623 JW |
894 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
895 | signal (SIGHUP, handler); | |
8ab861c7 | 896 | #endif |
915ee623 JW |
897 | if (signal (SIGSEGV, SIG_IGN) != SIG_IGN) |
898 | signal (SIGSEGV, handler); | |
8ab861c7 | 899 | #ifdef SIGBUS |
915ee623 JW |
900 | if (signal (SIGBUS, SIG_IGN) != SIG_IGN) |
901 | signal (SIGBUS, handler); | |
8ab861c7 | 902 | #endif |
4e81a331 | 903 | |
bb59f9a6 RS |
904 | /* Extract COMPILER_PATH and PATH into our prefix list. */ |
905 | prefix_from_env ("COMPILER_PATH", &cpath); | |
906 | prefix_from_env ("PATH", &path); | |
4e81a331 | 907 | |
bb59f9a6 RS |
908 | #ifdef CROSS_COMPILE |
909 | /* If we look for a program in the compiler directories, we just use | |
910 | the short name, since these directories are already system-specific. | |
911 | But it we look for a took in the system directories, we need to | |
912 | qualify the program name with the target machine. */ | |
913 | ||
914 | full_ld_suffix | |
aee42e27 | 915 | = xcalloc (strlen (ld_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 916 | strcpy (full_ld_suffix, target_machine); |
bb59f9a6 | 917 | strcat (full_ld_suffix, "-"); |
46c74083 | 918 | strcat (full_ld_suffix, ld_suffix); |
bb59f9a6 RS |
919 | |
920 | full_real_ld_suffix | |
aee42e27 | 921 | = xcalloc (strlen (real_ld_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 922 | strcpy (full_real_ld_suffix, target_machine); |
bb59f9a6 | 923 | strcat (full_real_ld_suffix, "-"); |
46c74083 | 924 | strcat (full_real_ld_suffix, real_ld_suffix); |
bb59f9a6 | 925 | |
98552524 | 926 | #if 0 |
bb59f9a6 | 927 | full_gld_suffix |
aee42e27 | 928 | = xcalloc (strlen (gld_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 929 | strcpy (full_gld_suffix, target_machine); |
bb59f9a6 | 930 | strcat (full_gld_suffix, "-"); |
46c74083 | 931 | strcat (full_gld_suffix, gld_suffix); |
98552524 | 932 | #endif |
bb59f9a6 RS |
933 | |
934 | full_nm_suffix | |
aee42e27 | 935 | = xcalloc (strlen (nm_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 936 | strcpy (full_nm_suffix, target_machine); |
bb59f9a6 | 937 | strcat (full_nm_suffix, "-"); |
46c74083 | 938 | strcat (full_nm_suffix, nm_suffix); |
bb59f9a6 RS |
939 | |
940 | full_gnm_suffix | |
aee42e27 | 941 | = xcalloc (strlen (gnm_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 942 | strcpy (full_gnm_suffix, target_machine); |
bb59f9a6 | 943 | strcat (full_gnm_suffix, "-"); |
46c74083 | 944 | strcat (full_gnm_suffix, gnm_suffix); |
bb59f9a6 RS |
945 | |
946 | full_strip_suffix | |
aee42e27 | 947 | = xcalloc (strlen (strip_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 948 | strcpy (full_strip_suffix, target_machine); |
bb59f9a6 | 949 | strcat (full_strip_suffix, "-"); |
46c74083 | 950 | strcat (full_strip_suffix, strip_suffix); |
bb59f9a6 RS |
951 | |
952 | full_gstrip_suffix | |
aee42e27 | 953 | = xcalloc (strlen (gstrip_suffix) + strlen (target_machine) + 2, 1); |
46c74083 | 954 | strcpy (full_gstrip_suffix, target_machine); |
bb59f9a6 | 955 | strcat (full_gstrip_suffix, "-"); |
46c74083 | 956 | strcat (full_gstrip_suffix, gstrip_suffix); |
bb59f9a6 RS |
957 | #endif /* CROSS_COMPILE */ |
958 | ||
959 | /* Try to discover a valid linker/nm/strip to use. */ | |
960 | ||
90d326bd JM |
961 | /* Maybe we know the right file to use (if not cross). */ |
962 | #ifdef REAL_LD_FILE_NAME | |
963 | ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME); | |
964 | if (ld_file_name == 0) | |
965 | #endif | |
98552524 | 966 | #if 0 |
bb59f9a6 RS |
967 | /* Search the (target-specific) compiler dirs for `gld'. */ |
968 | ld_file_name = find_a_file (&cpath, gld_suffix); | |
969 | /* Search the ordinary system bin directories | |
46c74083 | 970 | for `gld' (if native linking) or `TARGET-gld' (if cross). */ |
bb59f9a6 RS |
971 | if (ld_file_name == 0) |
972 | ld_file_name = find_a_file (&path, full_gld_suffix); | |
6c61ac77 DE |
973 | #else |
974 | ld_file_name = 0; | |
98552524 | 975 | #endif |
bb59f9a6 RS |
976 | /* Likewise for `real-ld'. */ |
977 | if (ld_file_name == 0) | |
978 | ld_file_name = find_a_file (&cpath, real_ld_suffix); | |
979 | if (ld_file_name == 0) | |
980 | ld_file_name = find_a_file (&path, full_real_ld_suffix); | |
b3a2ef94 RK |
981 | /* Search the compiler directories for `ld'. We have protection against |
982 | recursive calls in find_a_file. */ | |
f820b898 | 983 | if (ld_file_name == 0) |
b3a2ef94 | 984 | ld_file_name = find_a_file (&cpath, ld_suffix); |
bb59f9a6 | 985 | /* Search the ordinary system bin directories |
46c74083 | 986 | for `ld' (if native linking) or `TARGET-ld' (if cross). */ |
bb59f9a6 RS |
987 | if (ld_file_name == 0) |
988 | ld_file_name = find_a_file (&path, full_ld_suffix); | |
989 | ||
7223feb0 DE |
990 | /* If we've invoked ourselves, try again with LD_FILE_NAME. */ |
991 | ||
992 | if (collect_names != 0) | |
993 | { | |
994 | if (ld_file_name != 0) | |
995 | { | |
996 | argv[0] = ld_file_name; | |
997 | execvp (argv[0], argv); | |
998 | } | |
999 | fatal ("cannot find `ld'"); | |
1000 | } | |
1001 | ||
90d326bd JM |
1002 | #ifdef REAL_NM_FILE_NAME |
1003 | nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME); | |
1004 | if (nm_file_name == 0) | |
1005 | #endif | |
bb59f9a6 RS |
1006 | nm_file_name = find_a_file (&cpath, gnm_suffix); |
1007 | if (nm_file_name == 0) | |
1008 | nm_file_name = find_a_file (&path, full_gnm_suffix); | |
1009 | if (nm_file_name == 0) | |
1010 | nm_file_name = find_a_file (&cpath, nm_suffix); | |
bb59f9a6 RS |
1011 | if (nm_file_name == 0) |
1012 | nm_file_name = find_a_file (&path, full_nm_suffix); | |
1013 | ||
90d326bd JM |
1014 | #ifdef REAL_STRIP_FILE_NAME |
1015 | strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME); | |
1016 | if (strip_file_name == 0) | |
1017 | #endif | |
bb59f9a6 RS |
1018 | strip_file_name = find_a_file (&cpath, gstrip_suffix); |
1019 | if (strip_file_name == 0) | |
1020 | strip_file_name = find_a_file (&path, full_gstrip_suffix); | |
1021 | if (strip_file_name == 0) | |
1022 | strip_file_name = find_a_file (&cpath, strip_suffix); | |
bb59f9a6 RS |
1023 | if (strip_file_name == 0) |
1024 | strip_file_name = find_a_file (&path, full_strip_suffix); | |
4e81a331 | 1025 | |
a87104d9 | 1026 | /* Determine the full path name of the C compiler to use. */ |
ed5b9462 | 1027 | c_file_name = getenv ("COLLECT_GCC"); |
5365d6ee | 1028 | if (c_file_name == 0) |
4e81a331 | 1029 | { |
bb59f9a6 | 1030 | #ifdef CROSS_COMPILE |
aee42e27 | 1031 | c_file_name = xcalloc (sizeof ("gcc-") + strlen (target_machine) + 1, 1); |
46c74083 RS |
1032 | strcpy (c_file_name, target_machine); |
1033 | strcat (c_file_name, "-gcc"); | |
4e81a331 | 1034 | #else |
bb59f9a6 | 1035 | c_file_name = "gcc"; |
a87104d9 | 1036 | #endif |
a87104d9 MM |
1037 | } |
1038 | ||
bb59f9a6 RS |
1039 | p = find_a_file (&cpath, c_file_name); |
1040 | ||
1041 | /* Here it should be safe to use the system search path since we should have | |
1042 | already qualified the name of the compiler when it is needed. */ | |
1043 | if (p == 0) | |
1044 | p = find_a_file (&path, c_file_name); | |
1045 | ||
1046 | if (p) | |
1047 | c_file_name = p; | |
4e81a331 | 1048 | |
45840c57 | 1049 | *ld1++ = *ld2++ = ld_file_name; |
4e81a331 RS |
1050 | |
1051 | /* Make temp file names. */ | |
1052 | choose_temp_base (); | |
1053 | c_file = xcalloc (temp_filename_length + sizeof (".c"), 1); | |
1054 | o_file = xcalloc (temp_filename_length + sizeof (".o"), 1); | |
1055 | sprintf (c_file, "%s.c", temp_filename); | |
1056 | sprintf (o_file, "%s.o", temp_filename); | |
ed5b9462 | 1057 | *c_ptr++ = c_file_name; |
4e81a331 RS |
1058 | *c_ptr++ = "-c"; |
1059 | *c_ptr++ = "-o"; | |
1060 | *c_ptr++ = o_file; | |
1061 | ||
ed5b9462 RS |
1062 | /* !!! When GCC calls collect2, |
1063 | it does not know whether it is calling collect2 or ld. | |
1064 | So collect2 cannot meaningfully understand any options | |
1065 | except those ld understands. | |
1066 | If you propose to make GCC pass some other option, | |
1067 | just imagine what will happen if ld is really ld!!! */ | |
1068 | ||
4e81a331 | 1069 | /* Parse arguments. Remember output file spec, pass the rest to ld. */ |
ed5b9462 RS |
1070 | /* After the first file, put in the c++ rt0. */ |
1071 | ||
4e81a331 RS |
1072 | first_file = 1; |
1073 | while ((arg = *++argv) != (char *)0) | |
1074 | { | |
1075 | *ld1++ = *ld2++ = arg; | |
1076 | ||
1077 | if (arg[0] == '-') | |
2d5e74ca | 1078 | { |
4e81a331 RS |
1079 | switch (arg[1]) |
1080 | { | |
1081 | case 'd': | |
1082 | if (!strcmp (arg, "-debug")) | |
1083 | { | |
1084 | debug = 1; | |
1085 | vflag = 1; | |
1086 | ld1--; | |
1087 | ld2--; | |
1088 | } | |
1089 | break; | |
1090 | ||
4e81a331 | 1091 | case 'o': |
0cdd3ddd | 1092 | output_file = (arg[2] == '\0') ? argv[1] : &arg[2]; |
4e81a331 RS |
1093 | break; |
1094 | ||
1095 | case 'r': | |
1096 | if (arg[2] == '\0') | |
1097 | rflag = 1; | |
1098 | break; | |
1099 | ||
a87104d9 MM |
1100 | case 's': |
1101 | if (arg[2] == '\0') | |
1102 | { | |
1103 | /* We must strip after the nm run, otherwise C++ linking | |
1104 | won't work. Thus we strip in the second ld run, or | |
1105 | else with strip if there is no second ld run. */ | |
1106 | strip_flag = 1; | |
1107 | ld1--; | |
1108 | } | |
1109 | break; | |
1110 | ||
4e81a331 RS |
1111 | case 'v': |
1112 | if (arg[2] == '\0') | |
1113 | vflag = 1; | |
1114 | break; | |
1115 | } | |
2d5e74ca | 1116 | } |
4e81a331 | 1117 | else if (first_file |
3f7cc57a | 1118 | && (p = rindex (arg, '.')) != (char *)0 |
4e81a331 RS |
1119 | && strcmp (p, ".o") == 0) |
1120 | { | |
1121 | first_file = 0; | |
1122 | *ld2++ = o_file; | |
1123 | } | |
1124 | } | |
1125 | ||
ed5b9462 RS |
1126 | /* Get any options that the upper GCC wants to pass to the sub-GCC. */ |
1127 | p = (char *) getenv ("COLLECT_GCC_OPTIONS"); | |
1128 | if (p) | |
1129 | while (*p) | |
1130 | { | |
1131 | char *q = p; | |
1132 | while (*q && *q != ' ') q++; | |
1133 | if (*p == '-' && (p[1] == 'm' || p[1] == 'f')) | |
1134 | *c_ptr++ = savestring (p, q - p); | |
1135 | ||
1136 | if (*q) q++; | |
1137 | p = q; | |
1138 | } | |
1139 | ||
4e81a331 RS |
1140 | *c_ptr++ = c_file; |
1141 | *c_ptr = *ld1 = *ld2 = (char *)0; | |
1142 | ||
1143 | if (vflag) | |
1144 | { | |
ed5b9462 | 1145 | fprintf (stderr, "collect2 version %s", version_string); |
4e81a331 RS |
1146 | #ifdef TARGET_VERSION |
1147 | TARGET_VERSION; | |
1148 | #endif | |
1149 | fprintf (stderr, "\n"); | |
1150 | } | |
1151 | ||
1152 | if (debug) | |
1153 | { | |
ed5b9462 | 1154 | char *ptr; |
a1549b15 RS |
1155 | fprintf (stderr, "ld_file_name = %s\n", |
1156 | (ld_file_name ? ld_file_name : "not found")); | |
1157 | fprintf (stderr, "c_file_name = %s\n", | |
1158 | (c_file_name ? c_file_name : "not found")); | |
1159 | fprintf (stderr, "nm_file_name = %s\n", | |
1160 | (nm_file_name ? nm_file_name : "not found")); | |
1161 | fprintf (stderr, "strip_file_name = %s\n", | |
1162 | (strip_file_name ? strip_file_name : "not found")); | |
1163 | fprintf (stderr, "c_file = %s\n", | |
1164 | (c_file ? c_file : "not found")); | |
1165 | fprintf (stderr, "o_file = %s\n", | |
1166 | (o_file ? o_file : "not found")); | |
ed5b9462 | 1167 | |
7223feb0 DE |
1168 | ptr = getenv ("COLLECT_NAMES"); |
1169 | if (ptr) | |
1170 | fprintf (stderr, "COLLECT_NAMES = %s\n", ptr); | |
1171 | ||
ed5b9462 RS |
1172 | ptr = getenv ("COLLECT_GCC_OPTIONS"); |
1173 | if (ptr) | |
1174 | fprintf (stderr, "COLLECT_GCC_OPTIONS = %s\n", ptr); | |
1175 | ||
1176 | ptr = getenv ("COLLECT_GCC"); | |
1177 | if (ptr) | |
1178 | fprintf (stderr, "COLLECT_GCC = %s\n", ptr); | |
1179 | ||
1180 | ptr = getenv ("COMPILER_PATH"); | |
1181 | if (ptr) | |
1182 | fprintf (stderr, "COMPILER_PATH = %s\n", ptr); | |
1183 | ||
1184 | ptr = getenv ("LIBRARY_PATH"); | |
1185 | if (ptr) | |
1186 | fprintf (stderr, "LIBRARY_PATH = %s\n", ptr); | |
1187 | ||
1188 | fprintf (stderr, "\n"); | |
4e81a331 RS |
1189 | } |
1190 | ||
1191 | /* Load the program, searching all libraries. | |
1192 | Examine the namelist with nm and search it for static constructors | |
1193 | and destructors to call. | |
1194 | Write the constructor and destructor tables to a .s file and reload. */ | |
1195 | ||
aee3a549 | 1196 | fork_execute ("ld", ld1_argv); |
4e81a331 RS |
1197 | |
1198 | /* If -r, don't build the constructor or destructor list, just return now. */ | |
1199 | if (rflag) | |
1200 | return 0; | |
1201 | ||
0cdd3ddd | 1202 | scan_prog_file (output_file, PASS_FIRST); |
4e81a331 RS |
1203 | |
1204 | if (debug) | |
1205 | { | |
1206 | fprintf (stderr, "%d constructor(s) found\n", constructors.number); | |
1207 | fprintf (stderr, "%d destructor(s) found\n", destructors.number); | |
1208 | } | |
1209 | ||
1210 | if (constructors.number == 0 && destructors.number == 0) | |
a87104d9 MM |
1211 | { |
1212 | /* Strip now if it was requested on the command line. */ | |
1213 | if (strip_flag) | |
1214 | { | |
1215 | char **strip_argv = (char **) xcalloc (sizeof (char *), 3); | |
aee3a549 | 1216 | strip_argv[0] = strip_file_name; |
0cdd3ddd | 1217 | strip_argv[1] = output_file; |
a87104d9 | 1218 | strip_argv[2] = (char *) 0; |
aee3a549 | 1219 | fork_execute ("strip", strip_argv); |
a87104d9 MM |
1220 | } |
1221 | return 0; | |
1222 | } | |
4e81a331 | 1223 | |
eeed1288 | 1224 | maybe_unlink(output_file); |
4e81a331 RS |
1225 | outf = fopen (c_file, "w"); |
1226 | if (outf == (FILE *)0) | |
1fab8e81 | 1227 | fatal_perror ("%s", c_file); |
4e81a331 RS |
1228 | |
1229 | write_c_file (outf, c_file); | |
1230 | ||
1231 | if (fclose (outf)) | |
1fab8e81 | 1232 | fatal_perror ("closing %s", c_file); |
4e81a331 RS |
1233 | |
1234 | if (debug) | |
1235 | { | |
0cdd3ddd RS |
1236 | fprintf (stderr, "\n========== output_file = %s, c_file = %s\n", |
1237 | output_file, c_file); | |
4e81a331 RS |
1238 | write_c_file (stderr, "stderr"); |
1239 | fprintf (stderr, "========== end of c_file\n\n"); | |
1240 | } | |
1241 | ||
1242 | /* Assemble the constructor and destructor tables. | |
1243 | Link the tables in with the rest of the program. */ | |
1244 | ||
aee3a549 RK |
1245 | fork_execute ("gcc", c_argv); |
1246 | fork_execute ("ld", ld2_argv); | |
4e81a331 RS |
1247 | |
1248 | /* Let scan_prog_file do any final mods (OSF/rose needs this for | |
1249 | constructors/destructors in shared libraries. */ | |
0cdd3ddd | 1250 | scan_prog_file (output_file, PASS_SECOND); |
4e81a331 RS |
1251 | |
1252 | maybe_unlink (c_file); | |
1253 | maybe_unlink (o_file); | |
1254 | return 0; | |
1255 | } | |
1256 | ||
1257 | \f | |
1258 | /* Wait for a process to finish, and exit if a non-zero status is found. */ | |
1259 | ||
1260 | static void | |
1261 | do_wait (prog) | |
1262 | char *prog; | |
1263 | { | |
1264 | int status; | |
1265 | ||
1266 | wait (&status); | |
1267 | if (status) | |
1268 | { | |
0b90f9c2 | 1269 | if (WIFSIGNALED (status)) |
4e81a331 | 1270 | { |
0b90f9c2 | 1271 | int sig = WTERMSIG (status); |
ed5b9462 RS |
1272 | #ifdef NO_SYS_SIGLIST |
1273 | error ("%s terminated with signal %d %s", | |
1274 | prog, | |
1275 | sig, | |
1276 | (status & 0200) ? ", core dumped" : ""); | |
1277 | #else | |
4e81a331 RS |
1278 | error ("%s terminated with signal %d [%s]%s", |
1279 | prog, | |
1280 | sig, | |
1281 | sys_siglist[sig], | |
1282 | (status & 0200) ? ", core dumped" : ""); | |
ed5b9462 | 1283 | #endif |
4e81a331 RS |
1284 | |
1285 | my_exit (127); | |
1286 | } | |
1287 | ||
0b90f9c2 | 1288 | if (WIFEXITED (status)) |
4e81a331 | 1289 | { |
0b90f9c2 ILT |
1290 | int ret = WEXITSTATUS (status); |
1291 | if (ret != 0) | |
1292 | { | |
1293 | error ("%s returned %d exit status", prog, ret); | |
1294 | my_exit (ret); | |
1295 | } | |
4e81a331 RS |
1296 | } |
1297 | } | |
1298 | } | |
1299 | ||
1300 | \f | |
1301 | /* Fork and execute a program, and wait for the reply. */ | |
1302 | ||
1303 | static void | |
1304 | fork_execute (prog, argv) | |
1305 | char *prog; | |
1306 | char **argv; | |
1307 | { | |
1308 | int pid; | |
4e81a331 RS |
1309 | |
1310 | if (vflag || debug) | |
1311 | { | |
1312 | char **p_argv; | |
1313 | char *str; | |
1314 | ||
aee3a549 RK |
1315 | if (argv[0]) |
1316 | fprintf (stderr, "%s", argv[0]); | |
bb59f9a6 | 1317 | else |
aee3a549 | 1318 | fprintf (stderr, "[cannot find %s]", prog); |
bb59f9a6 | 1319 | |
4e81a331 RS |
1320 | for (p_argv = &argv[1]; (str = *p_argv) != (char *)0; p_argv++) |
1321 | fprintf (stderr, " %s", str); | |
1322 | ||
1323 | fprintf (stderr, "\n"); | |
1324 | } | |
1325 | ||
1326 | fflush (stdout); | |
1327 | fflush (stderr); | |
1328 | ||
bb59f9a6 RS |
1329 | /* If we can't find a program we need, complain error. Do this here |
1330 | since we might not end up needing something that we couldn't find. */ | |
1331 | ||
aee3a549 RK |
1332 | if (argv[0] == 0) |
1333 | fatal ("cannot find `%s'", prog); | |
bb59f9a6 | 1334 | |
4e81a331 RS |
1335 | pid = vfork (); |
1336 | if (pid == -1) | |
cf0c751a JW |
1337 | { |
1338 | #ifdef vfork | |
1339 | fatal_perror ("fork"); | |
1340 | #else | |
1341 | fatal_perror ("vfork"); | |
1342 | #endif | |
1343 | } | |
4e81a331 RS |
1344 | |
1345 | if (pid == 0) /* child context */ | |
1346 | { | |
aee3a549 | 1347 | execvp (argv[0], argv); |
1fab8e81 | 1348 | fatal_perror ("executing %s", prog); |
4e81a331 RS |
1349 | } |
1350 | ||
4e81a331 | 1351 | do_wait (prog); |
4e81a331 RS |
1352 | } |
1353 | ||
1354 | \f | |
1355 | /* Unlink a file unless we are debugging. */ | |
1356 | ||
1357 | static void | |
1358 | maybe_unlink (file) | |
1359 | char *file; | |
1360 | { | |
1361 | if (!debug) | |
1362 | unlink (file); | |
1363 | else | |
1364 | fprintf (stderr, "[Leaving %s]\n", file); | |
1365 | } | |
1366 | ||
1367 | \f | |
1368 | /* Add a name to a linked list. */ | |
1369 | ||
1370 | static void | |
1371 | add_to_list (head_ptr, name) | |
1372 | struct head *head_ptr; | |
1373 | char *name; | |
1374 | { | |
1375 | struct id *newid = (struct id *) xcalloc (sizeof (*newid) + strlen (name), 1); | |
1376 | static long sequence_number = 0; | |
1377 | newid->sequence = ++sequence_number; | |
1378 | strcpy (newid->name, name); | |
1379 | ||
1380 | if (head_ptr->first) | |
1381 | head_ptr->last->next = newid; | |
1382 | else | |
1383 | head_ptr->first = newid; | |
1384 | ||
1385 | head_ptr->last = newid; | |
1386 | head_ptr->number++; | |
1387 | } | |
1388 | ||
1389 | /* Write: `prefix', the names on list LIST, `suffix'. */ | |
1390 | ||
1391 | static void | |
1392 | write_list (stream, prefix, list) | |
1393 | FILE *stream; | |
1394 | char *prefix; | |
1395 | struct id *list; | |
1396 | { | |
1397 | while (list) | |
1398 | { | |
1399 | fprintf (stream, "%sx%d,\n", prefix, list->sequence); | |
1400 | list = list->next; | |
1401 | } | |
1402 | } | |
1403 | ||
1404 | static void | |
1405 | write_list_with_asm (stream, prefix, list) | |
1406 | FILE *stream; | |
1407 | char *prefix; | |
1408 | struct id *list; | |
1409 | { | |
1410 | while (list) | |
1411 | { | |
c7af43d8 | 1412 | fprintf (stream, "%sx%d __asm__ (\"%s\");\n", |
4e81a331 RS |
1413 | prefix, list->sequence, list->name); |
1414 | list = list->next; | |
1415 | } | |
1416 | } | |
1417 | ||
1418 | /* Write the constructor/destructor tables. */ | |
1419 | ||
1420 | static void | |
1421 | write_c_file (stream, name) | |
1422 | FILE *stream; | |
1423 | char *name; | |
1424 | { | |
1425 | /* Write the tables as C code */ | |
1426 | ||
1427 | fprintf (stream, "typedef void entry_pt();\n\n"); | |
1428 | ||
17704846 | 1429 | write_list_with_asm (stream, "extern entry_pt ", constructors.first); |
4e81a331 RS |
1430 | |
1431 | fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n"); | |
1432 | fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number); | |
ed5b9462 | 1433 | write_list (stream, "\t", constructors.first); |
4e81a331 RS |
1434 | fprintf (stream, "\t0\n};\n\n"); |
1435 | ||
17704846 | 1436 | write_list_with_asm (stream, "extern entry_pt ", destructors.first); |
4e81a331 RS |
1437 | |
1438 | fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n"); | |
1439 | fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number); | |
ed5b9462 | 1440 | write_list (stream, "\t", destructors.first); |
4e81a331 RS |
1441 | fprintf (stream, "\t0\n};\n\n"); |
1442 | ||
d6cf3187 RS |
1443 | fprintf (stream, "extern entry_pt %s;\n", NAME__MAIN); |
1444 | fprintf (stream, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN); | |
4e81a331 RS |
1445 | } |
1446 | ||
1447 | \f | |
ed5b9462 | 1448 | #ifdef OBJECT_FORMAT_NONE |
4e81a331 | 1449 | |
ed5b9462 RS |
1450 | /* Generic version to scan the name list of the loaded program for |
1451 | the symbols g++ uses for static constructors and destructors. | |
4e81a331 RS |
1452 | |
1453 | The constructor table begins at __CTOR_LIST__ and contains a count | |
1454 | of the number of pointers (or -1 if the constructors are built in a | |
1455 | separate section by the linker), followed by the pointers to the | |
1456 | constructor functions, terminated with a null pointer. The | |
1457 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
1458 | ||
1459 | static void | |
1460 | scan_prog_file (prog_name, which_pass) | |
1461 | char *prog_name; | |
1462 | enum pass which_pass; | |
1463 | { | |
ed5b9462 RS |
1464 | void (*int_handler) (); |
1465 | void (*quit_handler) (); | |
4e81a331 RS |
1466 | char *nm_argv[4]; |
1467 | int pid; | |
1468 | int argc = 0; | |
1469 | int pipe_fd[2]; | |
1470 | char *p, buf[1024]; | |
1471 | FILE *inf; | |
1472 | ||
1473 | if (which_pass != PASS_FIRST) | |
1474 | return; | |
1475 | ||
bb59f9a6 RS |
1476 | /* If we don't have an `nm', complain. */ |
1477 | if (nm_file_name == 0) | |
1478 | fatal ("cannot find `nm'"); | |
1479 | ||
ed5b9462 | 1480 | nm_argv[argc++] = "nm"; |
4e81a331 | 1481 | if (NM_FLAGS[0] != '\0') |
ed5b9462 | 1482 | nm_argv[argc++] = NM_FLAGS; |
4e81a331 | 1483 | |
ed5b9462 RS |
1484 | nm_argv[argc++] = prog_name; |
1485 | nm_argv[argc++] = (char *)0; | |
4e81a331 RS |
1486 | |
1487 | if (pipe (pipe_fd) < 0) | |
1488 | fatal_perror ("pipe"); | |
1489 | ||
1490 | inf = fdopen (pipe_fd[0], "r"); | |
1491 | if (inf == (FILE *)0) | |
1492 | fatal_perror ("fdopen"); | |
1493 | ||
1494 | /* Trace if needed. */ | |
1495 | if (vflag) | |
1496 | { | |
1497 | char **p_argv; | |
1498 | char *str; | |
1499 | ||
1500 | fprintf (stderr, "%s", nm_file_name); | |
1501 | for (p_argv = &nm_argv[1]; (str = *p_argv) != (char *)0; p_argv++) | |
1502 | fprintf (stderr, " %s", str); | |
1503 | ||
1504 | fprintf (stderr, "\n"); | |
1505 | } | |
1506 | ||
1507 | fflush (stdout); | |
1508 | fflush (stderr); | |
1509 | ||
1510 | /* Spawn child nm on pipe */ | |
1511 | pid = vfork (); | |
1512 | if (pid == -1) | |
cf0c751a JW |
1513 | { |
1514 | #ifdef vfork | |
1515 | fatal_perror ("fork"); | |
1516 | #else | |
1517 | fatal_perror ("vfork"); | |
1518 | #endif | |
1519 | } | |
4e81a331 RS |
1520 | |
1521 | if (pid == 0) /* child context */ | |
1522 | { | |
1523 | /* setup stdout */ | |
1524 | if (dup2 (pipe_fd[1], 1) < 0) | |
1fab8e81 | 1525 | fatal_perror ("dup2 (%d, 1)", pipe_fd[1]); |
4e81a331 RS |
1526 | |
1527 | if (close (pipe_fd[0]) < 0) | |
1fab8e81 | 1528 | fatal_perror ("close (%d)", pipe_fd[0]); |
4e81a331 RS |
1529 | |
1530 | if (close (pipe_fd[1]) < 0) | |
1fab8e81 | 1531 | fatal_perror ("close (%d)", pipe_fd[1]); |
4e81a331 RS |
1532 | |
1533 | execv (nm_file_name, nm_argv); | |
1fab8e81 | 1534 | fatal_perror ("executing %s", nm_file_name); |
4e81a331 RS |
1535 | } |
1536 | ||
1537 | /* Parent context from here on. */ | |
ed5b9462 | 1538 | int_handler = (void (*) ())signal (SIGINT, SIG_IGN); |
8ab861c7 | 1539 | #ifdef SIGQUIT |
ed5b9462 | 1540 | quit_handler = (void (*) ())signal (SIGQUIT, SIG_IGN); |
8ab861c7 | 1541 | #endif |
4e81a331 RS |
1542 | |
1543 | if (close (pipe_fd[1]) < 0) | |
1fab8e81 | 1544 | fatal_perror ("close (%d)", pipe_fd[1]); |
4e81a331 RS |
1545 | |
1546 | if (debug) | |
1547 | fprintf (stderr, "\nnm output with constructors/destructors.\n"); | |
1548 | ||
1549 | /* Read each line of nm output. */ | |
1550 | while (fgets (buf, sizeof buf, inf) != (char *)0) | |
1551 | { | |
1552 | int ch, ch2; | |
ed5b9462 | 1553 | char *name, *end; |
4e81a331 RS |
1554 | |
1555 | /* If it contains a constructor or destructor name, add the name | |
1556 | to the appropriate list. */ | |
1557 | ||
1558 | for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++) | |
1559 | ; | |
1560 | ||
1561 | if (ch == '\0' || ch == '\n') | |
1562 | continue; | |
ed5b9462 RS |
1563 | |
1564 | name = p; | |
1565 | /* Find the end of the symbol name. | |
1566 | Don't include `|', because Encore nm can tack that on the end. */ | |
1567 | for (end = p; (ch2 = *end) != '\0' && !isspace (ch2) && ch2 != '|'; | |
1568 | end++) | |
1569 | continue; | |
4e81a331 | 1570 | |
90d326bd JM |
1571 | #ifdef COLLECT_QUALIFY_MATCH |
1572 | COLLECT_QUALIFY_MATCH; | |
1573 | #endif | |
1574 | ||
4e81a331 | 1575 | *end = '\0'; |
ed5b9462 | 1576 | switch (is_ctor_dtor (name)) |
4e81a331 | 1577 | { |
ed5b9462 RS |
1578 | case 1: |
1579 | add_to_list (&constructors, name); | |
1580 | break; | |
4e81a331 | 1581 | |
ed5b9462 RS |
1582 | case 2: |
1583 | add_to_list (&destructors, name); | |
1584 | break; | |
4e81a331 | 1585 | |
ed5b9462 RS |
1586 | default: /* not a constructor or destructor */ |
1587 | continue; | |
4e81a331 RS |
1588 | } |
1589 | ||
4e81a331 RS |
1590 | if (debug) |
1591 | fprintf (stderr, "\t%s\n", buf); | |
1592 | } | |
1593 | ||
1594 | if (debug) | |
1595 | fprintf (stderr, "\n"); | |
1596 | ||
1597 | if (fclose (inf) != 0) | |
1598 | fatal_perror ("fclose of pipe"); | |
1599 | ||
1600 | do_wait (nm_file_name); | |
1601 | ||
1602 | signal (SIGINT, int_handler); | |
8ab861c7 | 1603 | #ifdef SIGQUIT |
4e81a331 | 1604 | signal (SIGQUIT, quit_handler); |
8ab861c7 | 1605 | #endif |
4e81a331 RS |
1606 | } |
1607 | ||
ed5b9462 RS |
1608 | #endif /* OBJECT_FORMAT_NONE */ |
1609 | ||
1610 | \f | |
1611 | /* | |
1612 | * COFF specific stuff. | |
1613 | */ | |
1614 | ||
1615 | #ifdef OBJECT_FORMAT_COFF | |
1616 | ||
1617 | #if defined(EXTENDED_COFF) | |
17704846 JW |
1618 | # define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax) |
1619 | # define GCC_SYMENT SYMR | |
1620 | # define GCC_OK_SYMBOL(X) ((X).st == stProc && (X).sc == scText) | |
1621 | # define GCC_SYMINC(X) (1) | |
1622 | # define GCC_SYMZERO(X) (SYMHEADER(X).isymMax) | |
1623 | # define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0) | |
ed5b9462 | 1624 | #else |
17704846 JW |
1625 | # define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms) |
1626 | # define GCC_SYMENT SYMENT | |
ed5b9462 RS |
1627 | # define GCC_OK_SYMBOL(X) \ |
1628 | (((X).n_sclass == C_EXT) && \ | |
1629 | (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) || \ | |
1630 | ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT))) | |
17704846 JW |
1631 | # define GCC_SYMINC(X) ((X).n_numaux+1) |
1632 | # define GCC_SYMZERO(X) 0 | |
1633 | # define GCC_CHECK_HDR(X) (1) | |
ed5b9462 RS |
1634 | #endif |
1635 | ||
1636 | extern char *ldgetname (); | |
1637 | ||
1638 | /* COFF version to scan the name list of the loaded program for | |
1639 | the symbols g++ uses for static constructors and destructors. | |
1640 | ||
1641 | The constructor table begins at __CTOR_LIST__ and contains a count | |
1642 | of the number of pointers (or -1 if the constructors are built in a | |
1643 | separate section by the linker), followed by the pointers to the | |
1644 | constructor functions, terminated with a null pointer. The | |
1645 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
1646 | ||
1647 | static void | |
1648 | scan_prog_file (prog_name, which_pass) | |
1649 | char *prog_name; | |
1650 | enum pass which_pass; | |
1651 | { | |
f3c3d3df | 1652 | LDFILE *ldptr = NULL; |
ed5b9462 RS |
1653 | int sym_index, sym_count; |
1654 | ||
1655 | if (which_pass != PASS_FIRST) | |
1656 | return; | |
1657 | ||
1658 | if ((ldptr = ldopen (prog_name, ldptr)) == NULL) | |
1659 | fatal ("%s: can't open as COFF file", prog_name); | |
1660 | ||
e99467d2 | 1661 | if (!MY_ISCOFF (HEADER (ldptr).f_magic)) |
ed5b9462 RS |
1662 | fatal ("%s: not a COFF file", prog_name); |
1663 | ||
17704846 | 1664 | if (GCC_CHECK_HDR (ldptr)) |
ed5b9462 | 1665 | { |
17704846 JW |
1666 | sym_count = GCC_SYMBOLS (ldptr); |
1667 | sym_index = GCC_SYMZERO (ldptr); | |
1668 | while (sym_index < sym_count) | |
1669 | { | |
1670 | GCC_SYMENT symbol; | |
ed5b9462 | 1671 | |
17704846 JW |
1672 | if (ldtbread (ldptr, sym_index, &symbol) <= 0) |
1673 | break; | |
1674 | sym_index += GCC_SYMINC (symbol); | |
ed5b9462 | 1675 | |
17704846 JW |
1676 | if (GCC_OK_SYMBOL (symbol)) |
1677 | { | |
1678 | char *name; | |
ed5b9462 | 1679 | |
17704846 JW |
1680 | if ((name = ldgetname (ldptr, &symbol)) == NULL) |
1681 | continue; /* should never happen */ | |
ed5b9462 RS |
1682 | |
1683 | #ifdef _AIX | |
17704846 JW |
1684 | /* All AIX function names begin with a dot. */ |
1685 | if (*name++ != '.') | |
1686 | continue; | |
ed5b9462 RS |
1687 | #endif |
1688 | ||
17704846 JW |
1689 | switch (is_ctor_dtor (name)) |
1690 | { | |
1691 | case 1: | |
1692 | add_to_list (&constructors, name); | |
1693 | break; | |
ed5b9462 | 1694 | |
17704846 JW |
1695 | case 2: |
1696 | add_to_list (&destructors, name); | |
1697 | break; | |
ed5b9462 | 1698 | |
17704846 JW |
1699 | default: /* not a constructor or destructor */ |
1700 | continue; | |
1701 | } | |
ed5b9462 RS |
1702 | |
1703 | #if !defined(EXTENDED_COFF) | |
17704846 JW |
1704 | if (debug) |
1705 | fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n", | |
1706 | symbol.n_scnum, symbol.n_sclass, | |
1707 | (symbol.n_type ? "0" : ""), symbol.n_type, | |
1708 | name); | |
ed5b9462 | 1709 | #else |
17704846 JW |
1710 | if (debug) |
1711 | fprintf (stderr, "\tiss = %5d, value = %5d, index = %5d, name = %s\n", | |
1712 | symbol.iss, symbol.value, symbol.index, name); | |
ed5b9462 | 1713 | #endif |
17704846 | 1714 | } |
ed5b9462 RS |
1715 | } |
1716 | } | |
1717 | ||
1718 | (void) ldclose(ldptr); | |
1719 | } | |
1720 | ||
1721 | #endif /* OBJECT_FORMAT_COFF */ | |
4e81a331 RS |
1722 | |
1723 | \f | |
1724 | /* | |
1725 | * OSF/rose specific stuff. | |
1726 | */ | |
1727 | ||
1728 | #ifdef OBJECT_FORMAT_ROSE | |
1729 | ||
1730 | /* Union of the various load commands */ | |
1731 | ||
1732 | typedef union load_union | |
1733 | { | |
1734 | ldc_header_t hdr; /* common header */ | |
1735 | load_cmd_map_command_t map; /* map indexing other load cmds */ | |
ed5b9462 | 1736 | interpreter_command_t iprtr; /* interpreter pathname */ |
4e81a331 RS |
1737 | strings_command_t str; /* load commands strings section */ |
1738 | region_command_t region; /* region load command */ | |
1739 | reloc_command_t reloc; /* relocation section */ | |
1740 | package_command_t pkg; /* package load command */ | |
1741 | symbols_command_t sym; /* symbol sections */ | |
1742 | entry_command_t ent; /* program start section */ | |
1743 | gen_info_command_t info; /* object information */ | |
1744 | func_table_command_t func; /* function constructors/destructors */ | |
1745 | } load_union_t; | |
1746 | ||
1747 | /* Structure to point to load command and data section in memory. */ | |
1748 | ||
1749 | typedef struct load_all | |
1750 | { | |
1751 | load_union_t *load; /* load command */ | |
1752 | char *section; /* pointer to section */ | |
1753 | } load_all_t; | |
1754 | ||
1755 | /* Structure to contain information about a file mapped into memory. */ | |
1756 | ||
1757 | struct file_info | |
1758 | { | |
1759 | char *start; /* start of map */ | |
1760 | char *name; /* filename */ | |
1761 | long size; /* size of the file */ | |
1762 | long rounded_size; /* size rounded to page boundary */ | |
1763 | int fd; /* file descriptor */ | |
1764 | int rw; /* != 0 if opened read/write */ | |
1765 | int use_mmap; /* != 0 if mmap'ed */ | |
1766 | }; | |
1767 | ||
ed5b9462 | 1768 | extern int decode_mach_o_hdr (); |
ed5b9462 | 1769 | extern int encode_mach_o_hdr (); |
4e81a331 | 1770 | |
4d1a011f RK |
1771 | static void add_func_table PROTO((mo_header_t *, load_all_t *, |
1772 | symbol_info_t *, int)); | |
1773 | static void print_header PROTO((mo_header_t *)); | |
1774 | static void print_load_command PROTO((load_union_t*, size_t, int)); | |
1775 | static void bad_header PROTO((int)); | |
357a98f1 | 1776 | static struct file_info *read_file PROTO((char *, int, int)); |
4d1a011f | 1777 | static void end_file PROTO((struct file_info *)); |
4e81a331 RS |
1778 | \f |
1779 | /* OSF/rose specific version to scan the name list of the loaded | |
1780 | program for the symbols g++ uses for static constructors and | |
1781 | destructors. | |
1782 | ||
1783 | The constructor table begins at __CTOR_LIST__ and contains a count | |
1784 | of the number of pointers (or -1 if the constructors are built in a | |
1785 | separate section by the linker), followed by the pointers to the | |
1786 | constructor functions, terminated with a null pointer. The | |
1787 | destructor table has the same format, and begins at __DTOR_LIST__. */ | |
1788 | ||
1789 | static void | |
1790 | scan_prog_file (prog_name, which_pass) | |
1791 | char *prog_name; | |
1792 | enum pass which_pass; | |
1793 | { | |
1794 | char *obj; | |
1795 | mo_header_t hdr; | |
1796 | load_all_t *load_array; | |
1797 | load_all_t *load_end; | |
1798 | load_all_t *load_cmd; | |
1799 | int symbol_load_cmds; | |
1800 | off_t offset; | |
1801 | int i; | |
1802 | int num_syms; | |
1803 | int status; | |
1804 | char *str_sect; | |
1805 | struct file_info *obj_file; | |
1806 | int prog_fd; | |
1807 | mo_lcid_t cmd_strings = -1; | |
1808 | symbol_info_t *main_sym = 0; | |
1809 | int rw = (which_pass != PASS_FIRST); | |
1810 | ||
1811 | prog_fd = open (prog_name, (rw) ? O_RDWR : O_RDONLY); | |
1812 | if (prog_fd < 0) | |
1fab8e81 | 1813 | fatal_perror ("can't read %s", prog_name); |
4e81a331 RS |
1814 | |
1815 | obj_file = read_file (prog_name, prog_fd, rw); | |
1816 | obj = obj_file->start; | |
1817 | ||
1818 | status = decode_mach_o_hdr (obj, MO_SIZEOF_RAW_HDR, MOH_HEADER_VERSION, &hdr); | |
1819 | if (status != MO_HDR_CONV_SUCCESS) | |
1820 | bad_header (status); | |
1821 | ||
1822 | ||
1823 | /* Do some basic sanity checks. Note we explicitly use the big endian magic number, | |
1824 | since the hardware will automatically swap bytes for us on loading little endian | |
1825 | integers. */ | |
1826 | ||
1827 | #ifndef CROSS_COMPILE | |
1828 | if (hdr.moh_magic != MOH_MAGIC_MSB | |
1829 | || hdr.moh_header_version != MOH_HEADER_VERSION | |
1830 | || hdr.moh_byte_order != OUR_BYTE_ORDER | |
1831 | || hdr.moh_data_rep_id != OUR_DATA_REP_ID | |
1832 | || hdr.moh_cpu_type != OUR_CPU_TYPE | |
1833 | || hdr.moh_cpu_subtype != OUR_CPU_SUBTYPE | |
1834 | || hdr.moh_vendor_type != OUR_VENDOR_TYPE) | |
1835 | { | |
1fab8e81 | 1836 | fatal ("incompatibilities between object file & expected values"); |
4e81a331 RS |
1837 | } |
1838 | #endif | |
1839 | ||
1840 | if (debug) | |
1841 | print_header (&hdr); | |
1842 | ||
1843 | offset = hdr.moh_first_cmd_off; | |
1844 | load_end = load_array | |
1845 | = (load_all_t *) xcalloc (sizeof (load_all_t), hdr.moh_n_load_cmds + 2); | |
1846 | ||
1847 | /* Build array of load commands, calculating the offsets */ | |
1848 | for (i = 0; i < hdr.moh_n_load_cmds; i++) | |
1849 | { | |
1850 | load_union_t *load_hdr; /* load command header */ | |
1851 | ||
1852 | load_cmd = load_end++; | |
1853 | load_hdr = (load_union_t *) (obj + offset); | |
1854 | ||
f72aed24 | 1855 | /* If modifying the program file, copy the header. */ |
4e81a331 RS |
1856 | if (rw) |
1857 | { | |
1858 | load_union_t *ptr = (load_union_t *) xmalloc (load_hdr->hdr.ldci_cmd_size); | |
4c9a05bc | 1859 | bcopy ((char *)load_hdr, (char *)ptr, load_hdr->hdr.ldci_cmd_size); |
4e81a331 RS |
1860 | load_hdr = ptr; |
1861 | ||
1862 | /* null out old command map, because we will rewrite at the end. */ | |
1863 | if (ptr->hdr.ldci_cmd_type == LDC_CMD_MAP) | |
1864 | { | |
1865 | cmd_strings = ptr->map.lcm_ld_cmd_strings; | |
1866 | ptr->hdr.ldci_cmd_type = LDC_UNDEFINED; | |
1867 | } | |
1868 | } | |
1869 | ||
1870 | load_cmd->load = load_hdr; | |
1871 | if (load_hdr->hdr.ldci_section_off > 0) | |
1872 | load_cmd->section = obj + load_hdr->hdr.ldci_section_off; | |
1873 | ||
1874 | if (debug) | |
1875 | print_load_command (load_hdr, offset, i); | |
1876 | ||
1877 | offset += load_hdr->hdr.ldci_cmd_size; | |
1878 | } | |
1879 | ||
1880 | /* If the last command is the load command map and is not undefined, | |
1881 | decrement the count of load commands. */ | |
1882 | if (rw && load_end[-1].load->hdr.ldci_cmd_type == LDC_UNDEFINED) | |
1883 | { | |
1884 | load_end--; | |
1885 | hdr.moh_n_load_cmds--; | |
1886 | } | |
1887 | ||
1888 | /* Go through and process each symbol table section. */ | |
1889 | symbol_load_cmds = 0; | |
1890 | for (load_cmd = load_array; load_cmd < load_end; load_cmd++) | |
1891 | { | |
1892 | load_union_t *load_hdr = load_cmd->load; | |
1893 | ||
1894 | if (load_hdr->hdr.ldci_cmd_type == LDC_SYMBOLS) | |
1895 | { | |
1896 | symbol_load_cmds++; | |
1897 | ||
1898 | if (debug) | |
1899 | { | |
ed5b9462 | 1900 | char *kind = "unknown"; |
4e81a331 RS |
1901 | |
1902 | switch (load_hdr->sym.symc_kind) | |
1903 | { | |
1904 | case SYMC_IMPORTS: kind = "imports"; break; | |
1905 | case SYMC_DEFINED_SYMBOLS: kind = "defined"; break; | |
1906 | case SYMC_STABS: kind = "stabs"; break; | |
1907 | } | |
1908 | ||
1909 | fprintf (stderr, "\nProcessing symbol table #%d, offset = 0x%.8lx, kind = %s\n", | |
1910 | symbol_load_cmds, load_hdr->hdr.ldci_section_off, kind); | |
1911 | } | |
1912 | ||
1913 | if (load_hdr->sym.symc_kind != SYMC_DEFINED_SYMBOLS) | |
1914 | continue; | |
1915 | ||
ed5b9462 | 1916 | str_sect = load_array[load_hdr->sym.symc_strings_section].section; |
4e81a331 RS |
1917 | if (str_sect == (char *)0) |
1918 | fatal ("string section missing"); | |
1919 | ||
1920 | if (load_cmd->section == (char *)0) | |
1921 | fatal ("section pointer missing"); | |
1922 | ||
1923 | num_syms = load_hdr->sym.symc_nentries; | |
1924 | for (i = 0; i < num_syms; i++) | |
1925 | { | |
1926 | symbol_info_t *sym = ((symbol_info_t *) load_cmd->section) + i; | |
1927 | char *name = sym->si_name.symbol_name + str_sect; | |
4e81a331 RS |
1928 | |
1929 | if (name[0] != '_') | |
1930 | continue; | |
1931 | ||
4e81a331 RS |
1932 | if (rw) |
1933 | { | |
d6cf3187 RS |
1934 | char *n = name + strlen (name) - strlen (NAME__MAIN); |
1935 | ||
1936 | if ((n - name) < 0 || strcmp (n, NAME__MAIN)) | |
4e81a331 | 1937 | continue; |
d6cf3187 RS |
1938 | while (n != name) |
1939 | if (*--n != '_') | |
1940 | continue; | |
4e81a331 RS |
1941 | |
1942 | main_sym = sym; | |
1943 | } | |
ed5b9462 | 1944 | else |
4e81a331 | 1945 | { |
ed5b9462 RS |
1946 | switch (is_ctor_dtor (name)) |
1947 | { | |
1948 | case 1: | |
1949 | add_to_list (&constructors, name); | |
1950 | break; | |
1951 | ||
1952 | case 2: | |
1953 | add_to_list (&destructors, name); | |
1954 | break; | |
1955 | ||
1956 | default: /* not a constructor or destructor */ | |
1957 | continue; | |
1958 | } | |
4e81a331 RS |
1959 | } |
1960 | ||
4e81a331 RS |
1961 | if (debug) |
1962 | fprintf (stderr, "\ttype = 0x%.4x, sc = 0x%.2x, flags = 0x%.8x, name = %.30s\n", | |
1963 | sym->si_type, sym->si_sc_type, sym->si_flags, name); | |
1964 | } | |
1965 | } | |
1966 | } | |
1967 | ||
1968 | if (symbol_load_cmds == 0) | |
1fab8e81 | 1969 | fatal ("no symbol table found"); |
4e81a331 RS |
1970 | |
1971 | /* Update the program file now, rewrite header and load commands. At present, | |
1972 | we assume that there is enough space after the last load command to insert | |
1973 | one more. Since the first section written out is page aligned, and the | |
1974 | number of load commands is small, this is ok for the present. */ | |
1975 | ||
1976 | if (rw) | |
1977 | { | |
1978 | load_union_t *load_map; | |
1979 | size_t size; | |
1980 | ||
1981 | if (cmd_strings == -1) | |
1fab8e81 RS |
1982 | fatal ("no cmd_strings found"); |
1983 | ||
1984 | /* Add __main to initializer list. | |
1985 | If we are building a program instead of a shared library, don't | |
1986 | do anything, since in the current version, you cannot do mallocs | |
1987 | and such in the constructors. */ | |
4e81a331 | 1988 | |
1fab8e81 RS |
1989 | if (main_sym != (symbol_info_t *)0 |
1990 | && ((hdr.moh_flags & MOH_EXECABLE_F) == 0)) | |
4e81a331 RS |
1991 | add_func_table (&hdr, load_array, main_sym, FNTC_INITIALIZATION); |
1992 | ||
1993 | if (debug) | |
1994 | fprintf (stderr, "\nUpdating header and load commands.\n\n"); | |
1995 | ||
1996 | hdr.moh_n_load_cmds++; | |
1997 | size = sizeof (load_cmd_map_command_t) + (sizeof (mo_offset_t) * (hdr.moh_n_load_cmds - 1)); | |
1998 | ||
1999 | /* Create new load command map. */ | |
2000 | if (debug) | |
2001 | fprintf (stderr, "load command map, %d cmds, new size %ld.\n", | |
2002 | (int)hdr.moh_n_load_cmds, (long)size); | |
2003 | ||
2004 | load_map = (load_union_t *) xcalloc (1, size); | |
2005 | load_map->map.ldc_header.ldci_cmd_type = LDC_CMD_MAP; | |
2006 | load_map->map.ldc_header.ldci_cmd_size = size; | |
2007 | load_map->map.lcm_ld_cmd_strings = cmd_strings; | |
2008 | load_map->map.lcm_nentries = hdr.moh_n_load_cmds; | |
2009 | load_array[hdr.moh_n_load_cmds-1].load = load_map; | |
2010 | ||
2011 | offset = hdr.moh_first_cmd_off; | |
2012 | for (i = 0; i < hdr.moh_n_load_cmds; i++) | |
2013 | { | |
2014 | load_map->map.lcm_map[i] = offset; | |
2015 | if (load_array[i].load->hdr.ldci_cmd_type == LDC_CMD_MAP) | |
2016 | hdr.moh_load_map_cmd_off = offset; | |
2017 | ||
2018 | offset += load_array[i].load->hdr.ldci_cmd_size; | |
2019 | } | |
2020 | ||
2021 | hdr.moh_sizeofcmds = offset - MO_SIZEOF_RAW_HDR; | |
2022 | ||
2023 | if (debug) | |
2024 | print_header (&hdr); | |
2025 | ||
2026 | /* Write header */ | |
2027 | status = encode_mach_o_hdr (&hdr, obj, MO_SIZEOF_RAW_HDR); | |
2028 | if (status != MO_HDR_CONV_SUCCESS) | |
2029 | bad_header (status); | |
2030 | ||
2031 | if (debug) | |
2032 | fprintf (stderr, "writing load commands.\n\n"); | |
2033 | ||
2034 | /* Write load commands */ | |
2035 | offset = hdr.moh_first_cmd_off; | |
2036 | for (i = 0; i < hdr.moh_n_load_cmds; i++) | |
2037 | { | |
2038 | load_union_t *load_hdr = load_array[i].load; | |
2039 | size_t size = load_hdr->hdr.ldci_cmd_size; | |
2040 | ||
2041 | if (debug) | |
2042 | print_load_command (load_hdr, offset, i); | |
2043 | ||
4c9a05bc | 2044 | bcopy ((char *)load_hdr, (char *)(obj + offset), size); |
4e81a331 RS |
2045 | offset += size; |
2046 | } | |
2047 | } | |
2048 | ||
2049 | end_file (obj_file); | |
2050 | ||
2051 | if (close (prog_fd)) | |
1fab8e81 | 2052 | fatal_perror ("closing %s", prog_name); |
4e81a331 RS |
2053 | |
2054 | if (debug) | |
2055 | fprintf (stderr, "\n"); | |
2056 | } | |
2057 | ||
2058 | \f | |
2059 | /* Add a function table to the load commands to call a function | |
ed5b9462 | 2060 | on initiation or termination of the process. */ |
4e81a331 RS |
2061 | |
2062 | static void | |
2063 | add_func_table (hdr_p, load_array, sym, type) | |
2064 | mo_header_t *hdr_p; /* pointer to global header */ | |
2065 | load_all_t *load_array; /* array of ptrs to load cmds */ | |
2066 | symbol_info_t *sym; /* pointer to symbol entry */ | |
2067 | int type; /* fntc_type value */ | |
2068 | { | |
2069 | /* Add a new load command. */ | |
2070 | int num_cmds = ++hdr_p->moh_n_load_cmds; | |
2071 | int load_index = num_cmds - 1; | |
2072 | size_t size = sizeof (func_table_command_t) + sizeof (mo_addr_t); | |
2073 | load_union_t *ptr = xcalloc (1, size); | |
2074 | load_all_t *load_cmd; | |
2075 | int i; | |
2076 | ||
2077 | /* Set the unresolved address bit in the header to force the loader to be | |
2078 | used, since kernel exec does not call the initialization functions. */ | |
2079 | hdr_p->moh_flags |= MOH_UNRESOLVED_F; | |
2080 | ||
2081 | load_cmd = &load_array[load_index]; | |
2082 | load_cmd->load = ptr; | |
2083 | load_cmd->section = (char *)0; | |
2084 | ||
2085 | /* Fill in func table load command. */ | |
2086 | ptr->func.ldc_header.ldci_cmd_type = LDC_FUNC_TABLE; | |
2087 | ptr->func.ldc_header.ldci_cmd_size = size; | |
2088 | ptr->func.ldc_header.ldci_section_off = 0; | |
2089 | ptr->func.ldc_header.ldci_section_len = 0; | |
2090 | ptr->func.fntc_type = type; | |
2091 | ptr->func.fntc_nentries = 1; | |
2092 | ||
2093 | /* copy address, turn it from abs. address to (region,offset) if necessary. */ | |
2094 | /* Is the symbol already expressed as (region, offset)? */ | |
2095 | if ((sym->si_flags & SI_ABSOLUTE_VALUE_F) == 0) | |
2096 | { | |
2097 | ptr->func.fntc_entry_loc[i].adr_lcid = sym->si_value.def_val.adr_lcid; | |
2098 | ptr->func.fntc_entry_loc[i].adr_sctoff = sym->si_value.def_val.adr_sctoff; | |
2099 | } | |
2100 | ||
2101 | /* If not, figure out which region it's in. */ | |
2102 | else | |
2103 | { | |
2104 | mo_vm_addr_t addr = sym->si_value.abs_val; | |
2105 | int found = 0; | |
2106 | ||
2107 | for (i = 0; i < load_index; i++) | |
2108 | { | |
2109 | if (load_array[i].load->hdr.ldci_cmd_type == LDC_REGION) | |
2110 | { | |
2111 | region_command_t *region_ptr = &load_array[i].load->region; | |
2112 | ||
2113 | if ((region_ptr->regc_flags & REG_ABS_ADDR_F) != 0 | |
2114 | && addr >= region_ptr->regc_addr.vm_addr | |
2115 | && addr <= region_ptr->regc_addr.vm_addr + region_ptr->regc_vm_size) | |
2116 | { | |
2117 | ptr->func.fntc_entry_loc[0].adr_lcid = i; | |
2118 | ptr->func.fntc_entry_loc[0].adr_sctoff = addr - region_ptr->regc_addr.vm_addr; | |
2119 | found++; | |
2120 | break; | |
2121 | } | |
2122 | } | |
2123 | } | |
2124 | ||
2125 | if (!found) | |
2126 | fatal ("could not convert 0x%l.8x into a region", addr); | |
2127 | } | |
2128 | ||
2129 | if (debug) | |
2130 | fprintf (stderr, | |
2131 | "%s function, region %d, offset = %ld (0x%.8lx)\n", | |
2132 | (type == FNTC_INITIALIZATION) ? "init" : "term", | |
2133 | (int)ptr->func.fntc_entry_loc[i].adr_lcid, | |
2134 | (long)ptr->func.fntc_entry_loc[i].adr_sctoff, | |
2135 | (long)ptr->func.fntc_entry_loc[i].adr_sctoff); | |
2136 | ||
2137 | } | |
2138 | ||
2139 | \f | |
2140 | /* Print the global header for an OSF/rose object. */ | |
2141 | ||
2142 | static void | |
2143 | print_header (hdr_ptr) | |
2144 | mo_header_t *hdr_ptr; | |
2145 | { | |
2146 | fprintf (stderr, "\nglobal header:\n"); | |
2147 | fprintf (stderr, "\tmoh_magic = 0x%.8lx\n", hdr_ptr->moh_magic); | |
2148 | fprintf (stderr, "\tmoh_major_version = %d\n", (int)hdr_ptr->moh_major_version); | |
2149 | fprintf (stderr, "\tmoh_minor_version = %d\n", (int)hdr_ptr->moh_minor_version); | |
2150 | fprintf (stderr, "\tmoh_header_version = %d\n", (int)hdr_ptr->moh_header_version); | |
2151 | fprintf (stderr, "\tmoh_max_page_size = %d\n", (int)hdr_ptr->moh_max_page_size); | |
2152 | fprintf (stderr, "\tmoh_byte_order = %d\n", (int)hdr_ptr->moh_byte_order); | |
2153 | fprintf (stderr, "\tmoh_data_rep_id = %d\n", (int)hdr_ptr->moh_data_rep_id); | |
2154 | fprintf (stderr, "\tmoh_cpu_type = %d\n", (int)hdr_ptr->moh_cpu_type); | |
2155 | fprintf (stderr, "\tmoh_cpu_subtype = %d\n", (int)hdr_ptr->moh_cpu_subtype); | |
2156 | fprintf (stderr, "\tmoh_vendor_type = %d\n", (int)hdr_ptr->moh_vendor_type); | |
2157 | fprintf (stderr, "\tmoh_load_map_cmd_off = %d\n", (int)hdr_ptr->moh_load_map_cmd_off); | |
2158 | fprintf (stderr, "\tmoh_first_cmd_off = %d\n", (int)hdr_ptr->moh_first_cmd_off); | |
2159 | fprintf (stderr, "\tmoh_sizeofcmds = %d\n", (int)hdr_ptr->moh_sizeofcmds); | |
2160 | fprintf (stderr, "\tmon_n_load_cmds = %d\n", (int)hdr_ptr->moh_n_load_cmds); | |
2161 | fprintf (stderr, "\tmoh_flags = 0x%.8lx", (long)hdr_ptr->moh_flags); | |
2162 | ||
2163 | if (hdr_ptr->moh_flags & MOH_RELOCATABLE_F) | |
2164 | fprintf (stderr, ", relocatable"); | |
2165 | ||
2166 | if (hdr_ptr->moh_flags & MOH_LINKABLE_F) | |
2167 | fprintf (stderr, ", linkable"); | |
2168 | ||
2169 | if (hdr_ptr->moh_flags & MOH_EXECABLE_F) | |
2170 | fprintf (stderr, ", execable"); | |
2171 | ||
2172 | if (hdr_ptr->moh_flags & MOH_EXECUTABLE_F) | |
2173 | fprintf (stderr, ", executable"); | |
2174 | ||
2175 | if (hdr_ptr->moh_flags & MOH_UNRESOLVED_F) | |
2176 | fprintf (stderr, ", unresolved"); | |
2177 | ||
2178 | fprintf (stderr, "\n\n"); | |
2179 | return; | |
2180 | } | |
2181 | ||
2182 | \f | |
2183 | /* Print a short summary of a load command. */ | |
2184 | ||
2185 | static void | |
2186 | print_load_command (load_hdr, offset, number) | |
2187 | load_union_t *load_hdr; | |
2188 | size_t offset; | |
2189 | int number; | |
2190 | { | |
2191 | mo_long_t type = load_hdr->hdr.ldci_cmd_type; | |
2192 | char *type_str = (char *)0; | |
2193 | ||
2194 | switch (type) | |
2195 | { | |
2196 | case LDC_UNDEFINED: type_str = "UNDEFINED"; break; | |
2197 | case LDC_CMD_MAP: type_str = "CMD_MAP"; break; | |
2198 | case LDC_INTERPRETER: type_str = "INTERPRETER"; break; | |
2199 | case LDC_STRINGS: type_str = "STRINGS"; break; | |
2200 | case LDC_REGION: type_str = "REGION"; break; | |
2201 | case LDC_RELOC: type_str = "RELOC"; break; | |
2202 | case LDC_PACKAGE: type_str = "PACKAGE"; break; | |
2203 | case LDC_SYMBOLS: type_str = "SYMBOLS"; break; | |
2204 | case LDC_ENTRY: type_str = "ENTRY"; break; | |
2205 | case LDC_FUNC_TABLE: type_str = "FUNC_TABLE"; break; | |
2206 | case LDC_GEN_INFO: type_str = "GEN_INFO"; break; | |
2207 | } | |
2208 | ||
2209 | fprintf (stderr, | |
2210 | "cmd %2d, sz: 0x%.2lx, coff: 0x%.3lx, doff: 0x%.6lx, dlen: 0x%.6lx", | |
2211 | number, | |
2212 | (long) load_hdr->hdr.ldci_cmd_size, | |
2213 | (long) offset, | |
2214 | (long) load_hdr->hdr.ldci_section_off, | |
2215 | (long) load_hdr->hdr.ldci_section_len); | |
2216 | ||
2217 | if (type_str == (char *)0) | |
2218 | fprintf (stderr, ", ty: unknown (%ld)\n", (long) type); | |
2219 | ||
2220 | else if (type != LDC_REGION) | |
2221 | fprintf (stderr, ", ty: %s\n", type_str); | |
2222 | ||
2223 | else | |
2224 | { | |
2225 | char *region = ""; | |
2226 | switch (load_hdr->region.regc_usage_type) | |
2227 | { | |
2228 | case REG_TEXT_T: region = ", .text"; break; | |
2229 | case REG_DATA_T: region = ", .data"; break; | |
2230 | case REG_BSS_T: region = ", .bss"; break; | |
2231 | case REG_GLUE_T: region = ", .glue"; break; | |
2232 | #if defined (REG_RDATA_T) && defined (REG_SDATA_T) && defined (REG_SBSS_T) /*mips*/ | |
2233 | case REG_RDATA_T: region = ", .rdata"; break; | |
2234 | case REG_SDATA_T: region = ", .sdata"; break; | |
2235 | case REG_SBSS_T: region = ", .sbss"; break; | |
2236 | #endif | |
2237 | } | |
2238 | ||
2239 | fprintf (stderr, ", ty: %s, vaddr: 0x%.8lx, vlen: 0x%.6lx%s\n", | |
2240 | type_str, | |
2241 | (long) load_hdr->region.regc_vm_addr, | |
2242 | (long) load_hdr->region.regc_vm_size, | |
2243 | region); | |
2244 | } | |
2245 | ||
2246 | return; | |
2247 | } | |
2248 | ||
2249 | \f | |
2250 | /* Fatal error when {en,de}code_mach_o_header fails. */ | |
2251 | ||
2252 | static void | |
2253 | bad_header (status) | |
2254 | int status; | |
2255 | { | |
2256 | char *msg = (char *)0; | |
2257 | ||
2258 | switch (status) | |
2259 | { | |
2260 | case MO_ERROR_BAD_MAGIC: msg = "bad magic number"; break; | |
2261 | case MO_ERROR_BAD_HDR_VERS: msg = "bad header version"; break; | |
2262 | case MO_ERROR_BAD_RAW_HDR_VERS: msg = "bad raw header version"; break; | |
2263 | case MO_ERROR_BUF2SML: msg = "raw header buffer too small"; break; | |
2264 | case MO_ERROR_OLD_RAW_HDR_FILE: msg = "old raw header file"; break; | |
2265 | case MO_ERROR_UNSUPPORTED_VERS: msg = "unsupported version"; break; | |
2266 | } | |
2267 | ||
2268 | if (msg == (char *)0) | |
2269 | fatal ("unknown {de,en}code_mach_o_hdr return value %d", status); | |
2270 | else | |
2271 | fatal ("%s", msg); | |
2272 | } | |
2273 | ||
2274 | \f | |
2275 | /* Read a file into a memory buffer. */ | |
2276 | ||
2277 | static struct file_info * | |
2278 | read_file (name, fd, rw) | |
2279 | char *name; /* filename */ | |
2280 | int fd; /* file descriptor */ | |
2281 | int rw; /* read/write */ | |
2282 | { | |
2283 | struct stat stat_pkt; | |
2284 | struct file_info *p = (struct file_info *) xcalloc (sizeof (struct file_info), 1); | |
2285 | #ifdef USE_MMAP | |
2286 | static int page_size; | |
2287 | #endif | |
2288 | ||
2289 | if (fstat (fd, &stat_pkt) < 0) | |
2290 | fatal_perror ("fstat %s", name); | |
2291 | ||
2292 | p->name = name; | |
2293 | p->size = stat_pkt.st_size; | |
2294 | p->rounded_size = stat_pkt.st_size; | |
2295 | p->fd = fd; | |
2296 | p->rw = rw; | |
2297 | ||
2298 | #ifdef USE_MMAP | |
2299 | if (debug) | |
2300 | fprintf (stderr, "mmap %s, %s\n", name, (rw) ? "read/write" : "read-only"); | |
2301 | ||
2302 | if (page_size == 0) | |
2303 | page_size = sysconf (_SC_PAGE_SIZE); | |
2304 | ||
2305 | p->rounded_size = ((p->size + page_size - 1) / page_size) * page_size; | |
2306 | p->start = mmap ((caddr_t)0, | |
2307 | (rw) ? p->rounded_size : p->size, | |
2308 | (rw) ? (PROT_READ | PROT_WRITE) : PROT_READ, | |
2309 | MAP_FILE | MAP_VARIABLE | MAP_SHARED, | |
2310 | fd, | |
2311 | 0L); | |
2312 | ||
2313 | if (p->start != (char *)0 && p->start != (char *)-1) | |
2314 | p->use_mmap = 1; | |
2315 | ||
2316 | else | |
2317 | #endif /* USE_MMAP */ | |
2318 | { | |
2319 | long len; | |
2320 | ||
2321 | if (debug) | |
2322 | fprintf (stderr, "read %s\n", name); | |
2323 | ||
2324 | p->use_mmap = 0; | |
2325 | p->start = xmalloc (p->size); | |
2326 | if (lseek (fd, 0L, SEEK_SET) < 0) | |
2327 | fatal_perror ("lseek to 0 on %s", name); | |
2328 | ||
2329 | len = read (fd, p->start, p->size); | |
2330 | if (len < 0) | |
2331 | fatal_perror ("read %s", name); | |
2332 | ||
2333 | if (len != p->size) | |
2334 | fatal ("read %ld bytes, expected %ld, from %s", len, p->size, name); | |
2335 | } | |
2336 | ||
2337 | return p; | |
2338 | } | |
4e81a331 RS |
2339 | \f |
2340 | /* Do anything necessary to write a file back from memory. */ | |
2341 | ||
2342 | static void | |
2343 | end_file (ptr) | |
2344 | struct file_info *ptr; /* file information block */ | |
2345 | { | |
2346 | #ifdef USE_MMAP | |
2347 | if (ptr->use_mmap) | |
2348 | { | |
2349 | if (ptr->rw) | |
2350 | { | |
2351 | if (debug) | |
2352 | fprintf (stderr, "msync %s\n", ptr->name); | |
2353 | ||
2354 | if (msync (ptr->start, ptr->rounded_size, MS_ASYNC)) | |
2355 | fatal_perror ("msync %s", ptr->name); | |
2356 | } | |
2357 | ||
2358 | if (debug) | |
2359 | fprintf (stderr, "munmap %s\n", ptr->name); | |
2360 | ||
2361 | if (munmap (ptr->start, ptr->size)) | |
2362 | fatal_perror ("munmap %s", ptr->name); | |
2363 | } | |
2364 | else | |
2365 | #endif /* USE_MMAP */ | |
2366 | { | |
2367 | if (ptr->rw) | |
2368 | { | |
2369 | long len; | |
2370 | ||
2371 | if (debug) | |
2372 | fprintf (stderr, "write %s\n", ptr->name); | |
2373 | ||
2374 | if (lseek (ptr->fd, 0L, SEEK_SET) < 0) | |
2375 | fatal_perror ("lseek to 0 on %s", ptr->name); | |
2376 | ||
2377 | len = write (ptr->fd, ptr->start, ptr->size); | |
2378 | if (len < 0) | |
2379 | fatal_perror ("read %s", ptr->name); | |
2380 | ||
2381 | if (len != ptr->size) | |
2382 | fatal ("wrote %ld bytes, expected %ld, to %s", len, ptr->size, ptr->name); | |
2383 | } | |
2384 | ||
2385 | free ((generic *)ptr->start); | |
2386 | } | |
2387 | ||
2388 | free ((generic *)ptr); | |
2389 | } | |
2390 | ||
2391 | #endif /* OBJECT_FORMAT_ROSE */ |