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" | |
0e44fcca | 51 | #include "backtrace.h" |
20e6290e JB |
52 | #include "boolean.h" |
53 | #include "chars.h" | |
54 | #include "continuations.h" | |
55 | #ifdef DEBUG_EXTENSIONS | |
56 | #include "debug.h" | |
57 | #endif | |
70122cd3 | 58 | #include "dynl.h" |
20e6290e JB |
59 | #include "dynwind.h" |
60 | #include "eq.h" | |
61 | #include "error.h" | |
62 | #include "eval.h" | |
20e6290e | 63 | #include "feature.h" |
20e6290e JB |
64 | #include "filesys.h" |
65 | #include "fports.h" | |
66 | #include "gc.h" | |
67 | #include "gdbint.h" | |
68 | #include "gsubr.h" | |
69 | #include "hash.h" | |
70 | #include "hashtab.h" | |
71 | #include "ioext.h" | |
72 | #include "kw.h" | |
73 | #include "list.h" | |
74 | #include "load.h" | |
75 | #include "mallocs.h" | |
76 | #include "mbstrings.h" | |
370312ae | 77 | #include "net_db.h" |
20e6290e JB |
78 | #include "numbers.h" |
79 | #include "objprop.h" | |
80 | #include "options.h" | |
81 | #include "pairs.h" | |
82 | #include "ports.h" | |
83 | #include "posix.h" | |
84 | #include "print.h" | |
85 | #include "procprop.h" | |
86 | #include "procs.h" | |
87 | #include "ramap.h" | |
88 | #include "read.h" | |
89 | #include "scmsigs.h" | |
90 | #include "sequences.h" | |
91 | #include "simpos.h" | |
a8be22fe | 92 | #include "smob.h" |
20e6290e JB |
93 | #include "socket.h" |
94 | #include "srcprop.h" | |
95 | #include "stackchk.h" | |
0e44fcca | 96 | #include "stacks.h" |
20e6290e JB |
97 | #include "stime.h" |
98 | #include "strings.h" | |
99 | #include "strop.h" | |
100 | #include "strorder.h" | |
101 | #include "strports.h" | |
102 | #include "struct.h" | |
103 | #include "symbols.h" | |
104 | #include "tag.h" | |
105 | #include "throw.h" | |
106 | #include "unif.h" | |
107 | #include "variable.h" | |
108 | #include "vectors.h" | |
109 | #include "version.h" | |
110 | #include "vports.h" | |
111 | #include "weaks.h" | |
112 | ||
a8be22fe JB |
113 | #include "init.h" |
114 | ||
95b88819 GH |
115 | #ifdef HAVE_STRING_H |
116 | #include <string.h> | |
117 | #endif | |
118 | #ifdef HAVE_UNISTD_H | |
119 | #include <unistd.h> | |
120 | #endif | |
0f2d19dd JB |
121 | \f |
122 | ||
1cdaaafb JB |
123 | static void scm_start_stack SCM_P ((void *base)); |
124 | static void scm_restart_stack SCM_P ((void * base)); | |
125 | ||
126 | static void | |
127 | scm_start_stack (base) | |
0f2d19dd | 128 | void * base; |
0f2d19dd | 129 | { |
9ef3d0ee | 130 | SCM root; |
0f2d19dd | 131 | |
9ef3d0ee MD |
132 | root = scm_permanent_object (scm_make_root (SCM_UNDEFINED)); |
133 | scm_set_root (SCM_ROOT_STATE (root)); | |
0f2d19dd JB |
134 | scm_stack_base = base; |
135 | ||
0f2d19dd JB |
136 | scm_exitval = SCM_BOOL_F; /* vestigial */ |
137 | ||
dc19d1d2 | 138 | scm_top_level_lookup_closure_var = SCM_BOOL_F; |
0f2d19dd JB |
139 | scm_system_transformer = SCM_BOOL_F; |
140 | ||
141 | /* Create an object to hold the root continuation. | |
142 | */ | |
143 | SCM_NEWCELL (scm_rootcont); | |
1cdaaafb JB |
144 | SCM_SETJMPBUF (scm_rootcont, scm_must_malloc ((long) sizeof (scm_contregs), |
145 | "continuation")); | |
898a256f | 146 | SCM_SETCAR (scm_rootcont, scm_tc7_contin); |
4b5166ac | 147 | SCM_SEQ (scm_rootcont) = 0; |
0f2d19dd JB |
148 | /* The root continuation if further initialized by scm_restart_stack. */ |
149 | ||
150 | /* Create the look-aside stack for variables that are shared between | |
151 | * captured continuations. | |
152 | */ | |
1cdaaafb JB |
153 | scm_continuation_stack = scm_make_vector (SCM_MAKINUM (512), |
154 | SCM_UNDEFINED, SCM_UNDEFINED); | |
0f2d19dd JB |
155 | /* The continuation stack is further initialized by scm_restart_stack. */ |
156 | ||
1cdaaafb JB |
157 | /* The remainder of stack initialization is factored out to another |
158 | * function so that if this stack is ever exitted, it can be | |
159 | * re-entered using scm_restart_stack. */ | |
0f2d19dd JB |
160 | scm_restart_stack (base); |
161 | } | |
162 | ||
163 | ||
1cdaaafb | 164 | static void |
0f2d19dd JB |
165 | scm_restart_stack (base) |
166 | void * base; | |
0f2d19dd JB |
167 | { |
168 | scm_dynwinds = SCM_EOL; | |
169 | SCM_DYNENV (scm_rootcont) = SCM_EOL; | |
170 | SCM_THROW_VALUE (scm_rootcont) = SCM_EOL; | |
4e1caa79 | 171 | #ifdef DEBUG_EXTENSIONS |
4b5166ac | 172 | SCM_DFRAME (scm_rootcont) = scm_last_debug_frame = 0; |
4e1caa79 | 173 | #endif |
0f2d19dd JB |
174 | SCM_BASE (scm_rootcont) = base; |
175 | scm_continuation_stack_ptr = SCM_MAKINUM (0); | |
176 | } | |
177 | ||
178 | #if 0 | |
179 | static char remsg[] = "remove\n#define ", addmsg[] = "add\n#define "; | |
180 | ||
1cc91f1b JB |
181 | |
182 | static void fixconfig SCM_P ((char *s1, char *s2, int s)); | |
183 | ||
0f2d19dd JB |
184 | static void |
185 | fixconfig (s1, s2, s) | |
186 | char *s1; | |
187 | char *s2; | |
188 | int s; | |
0f2d19dd JB |
189 | { |
190 | fputs (s1, stderr); | |
191 | fputs (s2, stderr); | |
192 | fputs ("\nin ", stderr); | |
193 | fputs (s ? "setjump" : "scmfig", stderr); | |
194 | fputs (".h and recompile scm\n", stderr); | |
195 | exit (1); | |
196 | } | |
197 | ||
198 | ||
1cc91f1b | 199 | static void check_config SCM_P ((void)); |
0f2d19dd JB |
200 | |
201 | static void | |
202 | check_config () | |
203 | { | |
204 | scm_sizet j; | |
205 | ||
206 | j = HEAP_SEG_SIZE; | |
207 | if (HEAP_SEG_SIZE != j) | |
208 | fixconfig ("reduce", "size of HEAP_SEG_SIZE", 0); | |
209 | ||
210 | #ifdef SCM_SINGLES | |
211 | if (sizeof (float) != sizeof (long)) | |
212 | fixconfig (remsg, "SCM_SINGLES", 0); | |
213 | #endif /* def SCM_SINGLES */ | |
214 | ||
215 | ||
216 | #ifdef SCM_BIGDIG | |
217 | if (2 * SCM_BITSPERDIG / SCM_CHAR_BIT > sizeof (long)) | |
218 | fixconfig (remsg, "SCM_BIGDIG", 0); | |
219 | #ifndef SCM_DIGSTOOBIG | |
220 | if (SCM_DIGSPERLONG * sizeof (SCM_BIGDIG) > sizeof (long)) | |
221 | fixconfig (addmsg, "SCM_DIGSTOOBIG", 0); | |
222 | #endif | |
223 | #endif | |
224 | ||
225 | #ifdef SCM_STACK_GROWS_UP | |
226 | if (((SCM_STACKITEM *) & j - stack_start_ptr) < 0) | |
227 | fixconfig (remsg, "SCM_STACK_GROWS_UP", 1); | |
228 | #else | |
229 | if ((stack_start_ptr - (SCM_STACKITEM *) & j) < 0) | |
230 | fixconfig (addmsg, "SCM_STACK_GROWS_UP", 1); | |
231 | #endif | |
232 | } | |
233 | #endif | |
234 | ||
235 | ||
236 | \f | |
1cdaaafb JB |
237 | /* initializing standard and current I/O ports */ |
238 | ||
239 | /* Create standard ports from stdio stdin, stdout, and stderr. */ | |
240 | static void | |
241 | scm_init_standard_ports () | |
242 | { | |
243 | /* I'm not sure why this should be unbuffered when coming from a | |
244 | tty; isn't line buffering more common? */ | |
245 | scm_def_inp = scm_stdio_to_port (stdin, | |
246 | (isatty (fileno (stdin)) ? "r0" : "r"), | |
247 | "standard input"); | |
248 | scm_def_outp = scm_stdio_to_port (stdout, "w", "standard output"); | |
249 | scm_def_errp = scm_stdio_to_port (stderr, "w", "standard error"); | |
250 | ||
251 | scm_cur_inp = scm_def_inp; | |
252 | scm_cur_outp = scm_def_outp; | |
253 | scm_cur_errp = scm_def_errp; | |
254 | } | |
255 | ||
256 | ||
257 | \f | |
0f2d19dd JB |
258 | #ifdef _UNICOS |
259 | typedef int setjmp_type; | |
260 | #else | |
261 | typedef long setjmp_type; | |
262 | #endif | |
263 | ||
1cdaaafb JB |
264 | static void scm_boot_guile_1 SCM_P ((SCM_STACKITEM *base, |
265 | int argc, char **argv, | |
266 | void (*main_func) (void *closure, | |
267 | int argc, | |
268 | char **argv), | |
269 | void *closure)); | |
270 | ||
271 | ||
272 | /* Fire up the Guile Scheme interpreter. | |
273 | ||
274 | Call MAIN_FUNC, passing it CLOSURE, ARGC, and ARGV. MAIN_FUNC | |
275 | should do all the work of the program (initializing other packages, | |
276 | reading user input, etc.) before returning. When MAIN_FUNC | |
277 | returns, call exit (0); this function never returns. If you want | |
278 | some other exit value, MAIN_FUNC may call exit itself. | |
0f2d19dd | 279 | |
1cdaaafb JB |
280 | scm_boot_guile arranges for program-arguments to return the strings |
281 | given by ARGC and ARGV. If MAIN_FUNC modifies ARGC/ARGV, should | |
282 | call scm_set_program_arguments with the final list, so Scheme code | |
283 | will know which arguments have been processed. | |
c275ddc7 | 284 | |
1cdaaafb JB |
285 | Why must the caller do all the real work from MAIN_FUNC? The |
286 | garbage collector assumes that all local variables of type SCM will | |
287 | be above scm_boot_guile's stack frame on the stack. If you try to | |
288 | manipulate SCM values after this function returns, it's the luck of | |
289 | the draw whether the GC will be able to find the objects you | |
290 | allocate. So, scm_boot_guile function exits, rather than | |
291 | returning, to discourage people from making that mistake. */ | |
292 | ||
293 | ||
294 | void | |
295 | scm_boot_guile (argc, argv, main_func, closure) | |
0f2d19dd JB |
296 | int argc; |
297 | char ** argv; | |
1cdaaafb JB |
298 | void (*main_func) (); |
299 | void *closure; | |
c275ddc7 | 300 | { |
1cdaaafb JB |
301 | /* The garbage collector uses the address of this variable as one |
302 | end of the stack, and the address of one of its own local | |
303 | variables as the other end. */ | |
c275ddc7 JB |
304 | SCM_STACKITEM dummy; |
305 | ||
1cdaaafb | 306 | return scm_boot_guile_1 (&dummy, argc, argv, main_func, closure); |
c275ddc7 JB |
307 | } |
308 | ||
70122cd3 MV |
309 | /* Record here whether SCM_BOOT_GUILE_1 has already been called. This |
310 | variable is now here and not inside SCM_BOOT_GUILE_1 so that one | |
311 | can tweak it. This is necessary for unexec to work. (Hey, "1-live" | |
312 | is the name of a local radiostation...) */ | |
313 | ||
314 | int scm_boot_guile_1_live = 0; | |
1cdaaafb JB |
315 | |
316 | static void | |
317 | scm_boot_guile_1 (base, argc, argv, main_func, closure) | |
c275ddc7 | 318 | SCM_STACKITEM *base; |
c275ddc7 | 319 | int argc; |
1cdaaafb JB |
320 | char **argv; |
321 | void (*main_func) (); | |
322 | void *closure; | |
0f2d19dd JB |
323 | { |
324 | static int initialized = 0; | |
70122cd3 | 325 | /* static int live = 0; */ |
0f2d19dd | 326 | setjmp_type setjmp_val; |
0f2d19dd | 327 | |
1cdaaafb | 328 | /* This function is not re-entrant. */ |
70122cd3 | 329 | if (scm_boot_guile_1_live) |
1cdaaafb | 330 | abort (); |
0f2d19dd | 331 | |
70122cd3 | 332 | scm_boot_guile_1_live = 1; |
0f2d19dd JB |
333 | |
334 | scm_ints_disabled = 1; | |
335 | scm_block_gc = 1; | |
336 | ||
337 | if (initialized) | |
338 | { | |
c275ddc7 | 339 | scm_restart_stack (base); |
0f2d19dd JB |
340 | } |
341 | else | |
342 | { | |
343 | scm_ports_prehistory (); | |
344 | scm_smob_prehistory (); | |
345 | scm_tables_prehistory (); | |
346 | scm_init_storage (0); | |
9ef3d0ee MD |
347 | scm_init_root (); |
348 | #ifdef USE_THREADS | |
a239e35b | 349 | scm_init_threads (base); |
9ef3d0ee | 350 | #endif |
1cdaaafb | 351 | scm_start_stack (base); |
0f2d19dd JB |
352 | scm_init_gsubr (); |
353 | scm_init_feature (); | |
354 | scm_init_alist (); | |
355 | scm_init_append (); | |
356 | scm_init_arbiters (); | |
357 | scm_init_async (); | |
0e44fcca | 358 | scm_init_backtrace (); |
0f2d19dd JB |
359 | scm_init_boolean (); |
360 | scm_init_chars (); | |
361 | scm_init_continuations (); | |
362 | scm_init_dynwind (); | |
363 | scm_init_eq (); | |
364 | scm_init_error (); | |
0f2d19dd | 365 | scm_init_fports (); |
0f2d19dd JB |
366 | scm_init_filesys (); |
367 | scm_init_gc (); | |
68cd9c71 | 368 | scm_init_gdbint (); |
0f2d19dd JB |
369 | scm_init_hash (); |
370 | scm_init_hashtab (); | |
371 | scm_init_ioext (); | |
372 | scm_init_kw (); | |
373 | scm_init_list (); | |
374 | scm_init_mallocs (); | |
370312ae | 375 | scm_init_net_db (); |
0f2d19dd JB |
376 | scm_init_numbers (); |
377 | scm_init_objprop (); | |
4e1caa79 MD |
378 | #if DEBUG_EXTENSIONS |
379 | /* Excluding this until it's really needed makes the binary | |
380 | * smaller after linking. */ | |
381 | scm_init_options (); | |
382 | #endif | |
0f2d19dd JB |
383 | scm_init_pairs (); |
384 | scm_init_ports (); | |
385 | scm_init_posix (); | |
386 | scm_init_procs (); | |
387 | scm_init_procprop (); | |
0f2d19dd JB |
388 | scm_init_scmsigs (); |
389 | scm_init_socket (); | |
4e1caa79 MD |
390 | #ifdef DEBUG_EXTENSIONS |
391 | scm_init_srcprop (); | |
392 | #endif | |
0f2d19dd | 393 | scm_init_stackchk (); |
7439c0b9 | 394 | scm_init_struct (); /* Requires struct */ |
0e44fcca | 395 | scm_init_stacks (); |
0f2d19dd | 396 | scm_init_strports (); |
0f2d19dd JB |
397 | scm_init_symbols (); |
398 | scm_init_tag (); | |
399 | scm_init_load (); | |
90b826c9 | 400 | scm_init_print (); /* Requires struct */ |
0f2d19dd JB |
401 | scm_init_read (); |
402 | scm_init_sequences (); | |
403 | scm_init_stime (); | |
404 | scm_init_strings (); | |
405 | scm_init_strorder (); | |
406 | scm_init_mbstrings (); | |
407 | scm_init_strop (); | |
408 | scm_init_throw (); | |
409 | scm_init_variable (); | |
410 | scm_init_vectors (); | |
9d7e1edf | 411 | scm_init_version (); |
0f2d19dd JB |
412 | scm_init_weaks (); |
413 | scm_init_vports (); | |
414 | scm_init_eval (); | |
0e44fcca MD |
415 | #ifdef DEBUG_EXTENSIONS |
416 | scm_init_debug (); /* Requires macro smobs */ | |
417 | #endif | |
0f2d19dd JB |
418 | scm_init_ramap (); |
419 | scm_init_unif (); | |
420 | scm_init_simpos (); | |
24f93c27 | 421 | scm_init_load_path (); |
1cdaaafb | 422 | scm_init_standard_ports (); |
70122cd3 | 423 | scm_init_dynamic_linking (); |
0f2d19dd JB |
424 | initialized = 1; |
425 | } | |
426 | ||
427 | scm_block_gc = 0; /* permit the gc to run */ | |
428 | /* ints still disabled */ | |
429 | ||
1cdaaafb JB |
430 | #ifdef STACK_CHECKING |
431 | scm_stack_checking_enabled_p = SCM_STACK_CHECKING_P; | |
432 | #endif | |
0f2d19dd | 433 | |
1cdaaafb JB |
434 | setjmp_val = setjmp (SCM_JMPBUF (scm_rootcont)); |
435 | if (!setjmp_val) | |
436 | { | |
437 | scm_init_signals (); | |
0f2d19dd | 438 | |
f29de790 | 439 | scm_set_program_arguments (argc, argv, 0); |
1cdaaafb JB |
440 | (*main_func) (closure, argc, argv); |
441 | } | |
0f2d19dd | 442 | |
1cdaaafb | 443 | scm_restore_signals (); |
0f2d19dd | 444 | |
1cdaaafb JB |
445 | /* This tick gives any pending |
446 | * asyncs a chance to run. This must be done after | |
447 | * the call to scm_restore_signals. | |
448 | */ | |
449 | SCM_ASYNC_TICK; | |
450 | ||
451 | /* If the caller doesn't want this, they should return from | |
452 | main_func themselves. */ | |
453 | exit (0); | |
0f2d19dd | 454 | } |