Commit | Line | Data |
---|---|---|
0f2d19dd JB |
1 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 | * | |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | */ | |
41 | \f | |
42 | ||
43 | #include <stdio.h> | |
44 | #include "_scm.h" | |
45 | ||
20e6290e JB |
46 | /* Everybody has an init function. */ |
47 | #include "alist.h" | |
48 | #include "append.h" | |
49 | #include "arbiters.h" | |
50 | #include "async.h" | |
51 | #include "boolean.h" | |
52 | #include "chars.h" | |
53 | #include "continuations.h" | |
54 | #ifdef DEBUG_EXTENSIONS | |
55 | #include "debug.h" | |
56 | #endif | |
57 | #include "dynwind.h" | |
58 | #include "eq.h" | |
59 | #include "error.h" | |
60 | #include "eval.h" | |
61 | #include "fdsocket.h" | |
62 | #include "feature.h" | |
20e6290e JB |
63 | #include "filesys.h" |
64 | #include "fports.h" | |
65 | #include "gc.h" | |
66 | #include "gdbint.h" | |
67 | #include "gsubr.h" | |
68 | #include "hash.h" | |
69 | #include "hashtab.h" | |
70 | #include "ioext.h" | |
71 | #include "kw.h" | |
72 | #include "list.h" | |
73 | #include "load.h" | |
74 | #include "mallocs.h" | |
75 | #include "mbstrings.h" | |
76 | #include "numbers.h" | |
77 | #include "objprop.h" | |
78 | #include "options.h" | |
79 | #include "pairs.h" | |
80 | #include "ports.h" | |
81 | #include "posix.h" | |
82 | #include "print.h" | |
83 | #include "procprop.h" | |
84 | #include "procs.h" | |
85 | #include "ramap.h" | |
86 | #include "read.h" | |
87 | #include "scmsigs.h" | |
88 | #include "sequences.h" | |
89 | #include "simpos.h" | |
a8be22fe | 90 | #include "smob.h" |
20e6290e JB |
91 | #include "socket.h" |
92 | #include "srcprop.h" | |
93 | #include "stackchk.h" | |
94 | #include "stime.h" | |
95 | #include "strings.h" | |
96 | #include "strop.h" | |
97 | #include "strorder.h" | |
98 | #include "strports.h" | |
99 | #include "struct.h" | |
100 | #include "symbols.h" | |
101 | #include "tag.h" | |
102 | #include "throw.h" | |
103 | #include "unif.h" | |
104 | #include "variable.h" | |
105 | #include "vectors.h" | |
106 | #include "version.h" | |
107 | #include "vports.h" | |
108 | #include "weaks.h" | |
109 | ||
a8be22fe JB |
110 | #include "init.h" |
111 | ||
95b88819 GH |
112 | #ifdef HAVE_STRING_H |
113 | #include <string.h> | |
114 | #endif | |
115 | #ifdef HAVE_UNISTD_H | |
116 | #include <unistd.h> | |
117 | #endif | |
0f2d19dd JB |
118 | \f |
119 | ||
0f2d19dd JB |
120 | void |
121 | scm_start_stack (base, in, out, err) | |
122 | void * base; | |
123 | FILE * in; | |
124 | FILE * out; | |
125 | FILE * err; | |
0f2d19dd | 126 | { |
9ef3d0ee | 127 | SCM root; |
0f2d19dd JB |
128 | struct scm_port_table * pt; |
129 | ||
9ef3d0ee MD |
130 | root = scm_permanent_object (scm_make_root (SCM_UNDEFINED)); |
131 | scm_set_root (SCM_ROOT_STATE (root)); | |
132 | ||
0f2d19dd JB |
133 | scm_stack_base = base; |
134 | ||
4e1caa79 | 135 | /* Create standard ports from stdio files, if requested to do so. |
0f2d19dd JB |
136 | */ |
137 | ||
138 | if (!in) | |
139 | { | |
140 | scm_def_inp = SCM_BOOL_F; | |
141 | } | |
142 | else | |
143 | { | |
144 | SCM_NEWCELL (scm_def_inp); | |
145 | pt = scm_add_to_port_table (scm_def_inp); | |
146 | SCM_CAR (scm_def_inp) = (scm_tc16_fport | SCM_OPN | SCM_RDNG); | |
147 | SCM_SETPTAB_ENTRY (scm_def_inp, pt); | |
148 | SCM_SETSTREAM (scm_def_inp, (SCM)in); | |
149 | if (isatty (fileno (in))) | |
150 | { | |
151 | scm_setbuf0 (scm_def_inp); /* turn off stdin buffering */ | |
152 | SCM_CAR (scm_def_inp) |= SCM_BUF0; | |
153 | } | |
154 | scm_set_port_revealed_x (scm_def_inp, SCM_MAKINUM (1)); | |
155 | } | |
156 | ||
157 | if (!out) | |
158 | { | |
159 | scm_def_outp = SCM_BOOL_F; | |
160 | } | |
161 | else | |
162 | { | |
163 | SCM_NEWCELL (scm_def_outp); | |
164 | pt = scm_add_to_port_table (scm_def_outp); | |
165 | SCM_CAR (scm_def_outp) = (scm_tc16_fport | SCM_OPN | SCM_WRTNG); | |
166 | SCM_SETPTAB_ENTRY (scm_def_outp, pt); | |
167 | SCM_SETSTREAM (scm_def_outp, (SCM)out); | |
168 | scm_set_port_revealed_x (scm_def_outp, SCM_MAKINUM (1)); | |
169 | } | |
170 | ||
171 | if (!err) | |
172 | { | |
173 | scm_def_errp = SCM_BOOL_F; | |
174 | } | |
175 | else | |
176 | { | |
177 | SCM_NEWCELL (scm_def_errp); | |
178 | pt = scm_add_to_port_table (scm_def_errp); | |
179 | SCM_CAR (scm_def_errp) = (scm_tc16_fport | SCM_OPN | SCM_WRTNG); | |
180 | SCM_SETPTAB_ENTRY (scm_def_errp, pt); | |
181 | SCM_SETSTREAM (scm_def_errp, (SCM)err); | |
182 | scm_set_port_revealed_x (scm_def_errp, SCM_MAKINUM (1)); | |
183 | } | |
184 | ||
185 | scm_cur_inp = scm_def_inp; | |
186 | scm_cur_outp = scm_def_outp; | |
187 | scm_cur_errp = scm_def_errp; | |
188 | ||
189 | ||
190 | scm_progargs = SCM_BOOL_F; /* vestigial */ | |
191 | scm_exitval = SCM_BOOL_F; /* vestigial */ | |
192 | ||
193 | scm_top_level_lookup_thunk_var = SCM_BOOL_F; | |
194 | scm_system_transformer = SCM_BOOL_F; | |
195 | ||
196 | /* Create an object to hold the root continuation. | |
197 | */ | |
198 | SCM_NEWCELL (scm_rootcont); | |
199 | SCM_SETJMPBUF (scm_rootcont, scm_must_malloc ((long) sizeof (regs), "continuation")); | |
200 | SCM_CAR (scm_rootcont) = scm_tc7_contin; | |
201 | /* The root continuation if further initialized by scm_restart_stack. */ | |
202 | ||
203 | /* Create the look-aside stack for variables that are shared between | |
204 | * captured continuations. | |
205 | */ | |
206 | scm_continuation_stack = scm_make_vector (SCM_MAKINUM (512), SCM_UNDEFINED, SCM_UNDEFINED); | |
207 | /* The continuation stack is further initialized by scm_restart_stack. */ | |
208 | ||
209 | /* The remainder of stack initialization is factored out to another function so that | |
210 | * if this stack is ever exitted, it can be re-entered using scm_restart_stack. | |
211 | */ | |
212 | scm_restart_stack (base); | |
213 | } | |
214 | ||
215 | ||
0f2d19dd JB |
216 | void |
217 | scm_restart_stack (base) | |
218 | void * base; | |
0f2d19dd JB |
219 | { |
220 | scm_dynwinds = SCM_EOL; | |
221 | SCM_DYNENV (scm_rootcont) = SCM_EOL; | |
222 | SCM_THROW_VALUE (scm_rootcont) = SCM_EOL; | |
4e1caa79 MD |
223 | #ifdef DEBUG_EXTENSIONS |
224 | SCM_DFRAME (scm_rootcont) = last_debug_info_frame = 0; | |
225 | #endif | |
0f2d19dd JB |
226 | SCM_BASE (scm_rootcont) = base; |
227 | scm_continuation_stack_ptr = SCM_MAKINUM (0); | |
228 | } | |
229 | ||
230 | #if 0 | |
231 | static char remsg[] = "remove\n#define ", addmsg[] = "add\n#define "; | |
232 | ||
233 | #ifdef __STDC__ | |
234 | static void | |
235 | fixconfig (char *s1, char *s2, int s) | |
236 | #else | |
237 | static void | |
238 | fixconfig (s1, s2, s) | |
239 | char *s1; | |
240 | char *s2; | |
241 | int s; | |
242 | #endif | |
243 | { | |
244 | fputs (s1, stderr); | |
245 | fputs (s2, stderr); | |
246 | fputs ("\nin ", stderr); | |
247 | fputs (s ? "setjump" : "scmfig", stderr); | |
248 | fputs (".h and recompile scm\n", stderr); | |
249 | exit (1); | |
250 | } | |
251 | ||
252 | ||
253 | ||
254 | static void | |
255 | check_config () | |
256 | { | |
257 | scm_sizet j; | |
258 | ||
259 | j = HEAP_SEG_SIZE; | |
260 | if (HEAP_SEG_SIZE != j) | |
261 | fixconfig ("reduce", "size of HEAP_SEG_SIZE", 0); | |
262 | ||
263 | #ifdef SCM_SINGLES | |
264 | if (sizeof (float) != sizeof (long)) | |
265 | fixconfig (remsg, "SCM_SINGLES", 0); | |
266 | #endif /* def SCM_SINGLES */ | |
267 | ||
268 | ||
269 | #ifdef SCM_BIGDIG | |
270 | if (2 * SCM_BITSPERDIG / SCM_CHAR_BIT > sizeof (long)) | |
271 | fixconfig (remsg, "SCM_BIGDIG", 0); | |
272 | #ifndef SCM_DIGSTOOBIG | |
273 | if (SCM_DIGSPERLONG * sizeof (SCM_BIGDIG) > sizeof (long)) | |
274 | fixconfig (addmsg, "SCM_DIGSTOOBIG", 0); | |
275 | #endif | |
276 | #endif | |
277 | ||
278 | #ifdef SCM_STACK_GROWS_UP | |
279 | if (((SCM_STACKITEM *) & j - stack_start_ptr) < 0) | |
280 | fixconfig (remsg, "SCM_STACK_GROWS_UP", 1); | |
281 | #else | |
282 | if ((stack_start_ptr - (SCM_STACKITEM *) & j) < 0) | |
283 | fixconfig (addmsg, "SCM_STACK_GROWS_UP", 1); | |
284 | #endif | |
285 | } | |
286 | #endif | |
287 | ||
288 | ||
289 | \f | |
290 | #ifdef _UNICOS | |
291 | typedef int setjmp_type; | |
292 | #else | |
293 | typedef long setjmp_type; | |
294 | #endif | |
295 | ||
296 | /* Fire up Scheme. | |
297 | * | |
298 | * argc and argv are made the return values of program-arguments. | |
299 | * | |
300 | * in, out, and err, if not NULL, become the standard ports. | |
47b44240 | 301 | * If NULL is passed, your "initfunc" should set up the |
0f2d19dd JB |
302 | * standard ports. |
303 | * | |
304 | * boot_cmd is a string containing a Scheme expression to evaluate | |
305 | * to get things rolling. | |
306 | * | |
307 | * result is returned a string containing a printed result of evaluating | |
308 | * the boot command. | |
309 | * | |
310 | * the return value is: | |
311 | * scm_boot_ok - evaluation concluded normally | |
312 | * scm_boot_error - evaluation concluded with a Scheme error | |
313 | * scm_boot_emem - allocation error mallocing *result | |
47b44240 JB |
314 | * scm_boot_ereenter - scm_boot_guile was called re-entrantly, which is |
315 | * prohibited. | |
0f2d19dd JB |
316 | */ |
317 | ||
0f2d19dd | 318 | int |
47b44240 | 319 | scm_boot_guile (result, argc, argv, in, out, err, init_func, boot_cmd) |
0f2d19dd JB |
320 | char ** result; |
321 | int argc; | |
322 | char ** argv; | |
323 | FILE * in; | |
324 | FILE * out; | |
325 | FILE * err; | |
47b44240 | 326 | void (*init_func) (); |
0f2d19dd | 327 | char * boot_cmd; |
0f2d19dd JB |
328 | { |
329 | static int initialized = 0; | |
330 | static int live = 0; | |
331 | SCM_STACKITEM i; | |
332 | setjmp_type setjmp_val; | |
333 | int stat; | |
334 | ||
335 | if (live) /* This function is not re-entrant. */ | |
336 | { | |
337 | return scm_boot_ereenter; | |
338 | } | |
339 | ||
340 | live = 1; | |
341 | ||
342 | scm_ints_disabled = 1; | |
343 | scm_block_gc = 1; | |
344 | ||
345 | if (initialized) | |
346 | { | |
347 | scm_restart_stack (&i); | |
348 | } | |
349 | else | |
350 | { | |
351 | scm_ports_prehistory (); | |
352 | scm_smob_prehistory (); | |
353 | scm_tables_prehistory (); | |
354 | scm_init_storage (0); | |
9ef3d0ee MD |
355 | scm_init_root (); |
356 | #ifdef USE_THREADS | |
357 | scm_init_threads (); | |
358 | #endif | |
0f2d19dd JB |
359 | scm_start_stack (&i, in, out, err); |
360 | scm_init_gsubr (); | |
361 | scm_init_feature (); | |
362 | scm_init_alist (); | |
363 | scm_init_append (); | |
364 | scm_init_arbiters (); | |
365 | scm_init_async (); | |
366 | scm_init_boolean (); | |
367 | scm_init_chars (); | |
368 | scm_init_continuations (); | |
4e1caa79 MD |
369 | #ifdef DEBUG_EXTENSIONS |
370 | scm_init_debug (); | |
371 | #endif | |
0f2d19dd JB |
372 | scm_init_dynwind (); |
373 | scm_init_eq (); | |
374 | scm_init_error (); | |
375 | scm_init_fdsocket (); | |
376 | scm_init_fports (); | |
0f2d19dd JB |
377 | scm_init_filesys (); |
378 | scm_init_gc (); | |
68cd9c71 | 379 | scm_init_gdbint (); |
0f2d19dd JB |
380 | scm_init_hash (); |
381 | scm_init_hashtab (); | |
382 | scm_init_ioext (); | |
383 | scm_init_kw (); | |
384 | scm_init_list (); | |
385 | scm_init_mallocs (); | |
386 | scm_init_numbers (); | |
387 | scm_init_objprop (); | |
4e1caa79 MD |
388 | #if DEBUG_EXTENSIONS |
389 | /* Excluding this until it's really needed makes the binary | |
390 | * smaller after linking. */ | |
391 | scm_init_options (); | |
392 | #endif | |
0f2d19dd JB |
393 | scm_init_pairs (); |
394 | scm_init_ports (); | |
395 | scm_init_posix (); | |
396 | scm_init_procs (); | |
397 | scm_init_procprop (); | |
0f2d19dd JB |
398 | scm_init_scmsigs (); |
399 | scm_init_socket (); | |
4e1caa79 MD |
400 | #ifdef DEBUG_EXTENSIONS |
401 | scm_init_srcprop (); | |
402 | #endif | |
0f2d19dd JB |
403 | scm_init_stackchk (); |
404 | scm_init_strports (); | |
0f2d19dd JB |
405 | scm_init_symbols (); |
406 | scm_init_tag (); | |
407 | scm_init_load (); | |
90b826c9 MD |
408 | scm_init_struct (); |
409 | scm_init_print (); /* Requires struct */ | |
0f2d19dd JB |
410 | scm_init_read (); |
411 | scm_init_sequences (); | |
412 | scm_init_stime (); | |
413 | scm_init_strings (); | |
414 | scm_init_strorder (); | |
415 | scm_init_mbstrings (); | |
416 | scm_init_strop (); | |
417 | scm_init_throw (); | |
418 | scm_init_variable (); | |
419 | scm_init_vectors (); | |
9d7e1edf | 420 | scm_init_version (); |
0f2d19dd JB |
421 | scm_init_weaks (); |
422 | scm_init_vports (); | |
423 | scm_init_eval (); | |
424 | scm_init_ramap (); | |
425 | scm_init_unif (); | |
426 | scm_init_simpos (); | |
0f2d19dd | 427 | scm_progargs = scm_makfromstrs (argc, argv); |
24f93c27 | 428 | scm_init_load_path (); |
0f2d19dd JB |
429 | initialized = 1; |
430 | } | |
431 | ||
432 | scm_block_gc = 0; /* permit the gc to run */ | |
433 | /* ints still disabled */ | |
434 | ||
435 | { | |
436 | SCM command; | |
437 | ||
438 | command = scm_makfrom0str (boot_cmd); | |
439 | ||
440 | setjmp_val = setjmp (SCM_JMPBUF (scm_rootcont)); | |
441 | ||
faa6b3df MD |
442 | #ifdef STACK_CHECKING |
443 | scm_stack_checking_enabled_p = SCM_STACK_CHECKING_P; | |
444 | #endif | |
0f2d19dd JB |
445 | if (!setjmp_val) |
446 | { | |
3d40d7b6 | 447 | SCM last = SCM_UNDEFINED; |
0f2d19dd JB |
448 | scm_init_signals (); |
449 | ||
47b44240 JB |
450 | /* Call the initialization function passed in by the user, if |
451 | present. */ | |
452 | if (init_func) (*init_func) (); | |
453 | ||
454 | /* Evaluate boot_cmd string. */ | |
0f2d19dd JB |
455 | { |
456 | SCM p; | |
457 | SCM form; | |
458 | ||
459 | p = scm_mkstrport (SCM_MAKINUM (0), | |
460 | command, | |
461 | SCM_OPN | SCM_RDNG, | |
462 | "boot_guile"); | |
463 | while (1) | |
464 | { | |
465 | form = scm_read (p, SCM_BOOL_F, SCM_BOOL_F); | |
466 | if (SCM_EOF_VAL == form) | |
467 | break; | |
468 | last = scm_eval_x (form); | |
469 | } | |
470 | ||
471 | } | |
472 | ||
473 | scm_restore_signals (); | |
474 | /* This tick gives any pending | |
475 | * asyncs a chance to run. This must be done after | |
476 | * the call to scm_restore_signals. | |
477 | */ | |
478 | SCM_ASYNC_TICK; | |
479 | ||
480 | scm_ints_disabled = 1; /* Hopefully redundant but just to be sure. */ | |
481 | ||
482 | { | |
483 | SCM str_answer; | |
484 | ||
485 | str_answer = scm_strprint_obj (last); | |
486 | *result = (char *)malloc (1 + SCM_LENGTH (str_answer)); | |
487 | if (!*result) | |
488 | stat = scm_boot_emem; | |
489 | else | |
490 | { | |
491 | memcpy (*result, SCM_CHARS (str_answer), SCM_LENGTH (str_answer)); | |
492 | (*result)[SCM_LENGTH (str_answer)] = 0; | |
493 | stat = scm_boot_ok; | |
494 | } | |
495 | } | |
496 | } | |
497 | else | |
498 | { | |
499 | /* This is reached if an unhandled throw terminated Scheme. | |
500 | * Such an occurence should be extremely unlikely -- it indicates | |
501 | * a programming error in the boot code. | |
502 | * | |
503 | * Details of the bogus exception are stored in scm_exitval even | |
504 | * though that isn't currently reflected in the return value. | |
505 | * !!! | |
506 | */ | |
507 | ||
508 | scm_restore_signals (); | |
509 | /* This tick gives any pending | |
510 | * asyncs a chance to run. This must be done after | |
511 | * the call to scm_restore_signals. | |
512 | * | |
513 | * Note that an unhandled exception during signal handling | |
514 | * will put as back at the call to scm_restore_signals immediately | |
515 | * preceeding. A sufficiently bogus signal handler could | |
516 | * conceivably cause an infinite loop here. | |
517 | */ | |
518 | SCM_ASYNC_TICK; | |
519 | ||
520 | scm_ints_disabled = 1; /* Hopefully redundant but just to be sure. */ | |
521 | ||
522 | { | |
523 | SCM str_answer; | |
524 | ||
525 | str_answer = scm_strprint_obj (scm_exitval); | |
526 | *result = (char *)malloc (1 + SCM_LENGTH (str_answer)); | |
527 | if (!*result) | |
528 | stat = scm_boot_emem; | |
529 | else | |
530 | { | |
531 | memcpy (*result, SCM_CHARS (str_answer), SCM_LENGTH (str_answer)); | |
532 | (*result)[SCM_LENGTH (str_answer)] = 0; | |
533 | stat = scm_boot_error; | |
534 | } | |
535 | } | |
536 | } | |
537 | } | |
538 | ||
539 | scm_block_gc = 1; | |
540 | live = 0; | |
541 | return stat; | |
542 | } |