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