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1 | /* Debugging extensions for Guile |
2 | Copyright (C) 1995, 1996 Mikael Djurfeldt | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 1, or (at your option) | |
7 | any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
16 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
17 | ||
18 | The author can be reached at djurfeldt@nada.kth.se | |
19 | Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN | |
20 | */ | |
21 | ||
22 | #include <stdio.h> | |
23 | #include "_scm.h" | |
24 | ||
25 | \f | |
26 | ||
27 | /* {Run time control of the debugging evaluator} | |
28 | */ | |
29 | ||
30 | SCM_PROC (s_debug_options, "debug-options", 0, 1, 0, scm_debug_options); | |
31 | #ifdef __STDC__ | |
32 | SCM | |
33 | scm_debug_options (SCM new_values) | |
34 | #else | |
35 | SCM | |
36 | scm_debug_options (new_values) | |
37 | SCM new_values; | |
38 | #endif | |
39 | { | |
40 | SCM ans; | |
41 | SCM_DEFER_INTS; | |
42 | ans = scm_change_options (new_values, | |
43 | scm_debug_opts, | |
44 | N_DEBUG_OPTIONS, | |
45 | s_debug_options); | |
46 | #ifndef SCM_RECKLESS | |
47 | if (!(1 <= FRAMES && FRAMES <= MAXFRAMESIZE)) | |
48 | { | |
49 | scm_change_options (ans, scm_debug_opts, N_DEBUG_OPTIONS, s_debug_options); | |
50 | /* *fixme* Should SCM_ALLOW_INTS be called here? */ | |
51 | scm_wta (new_values, (char *) SCM_OUTOFRANGE, "frames"); | |
52 | } | |
53 | #endif | |
54 | RESET_DEBUG_MODE; | |
55 | scm_debug_eframe_size = 2 * FRAMES; | |
56 | SCM_ALLOW_INTS | |
57 | return ans; | |
58 | } | |
59 | ||
60 | SCM_PROC (s_evaluator_traps, "evaluator-traps", 0, 1, 0, scm_evaluator_traps); | |
61 | #ifdef __STDC__ | |
62 | SCM | |
63 | scm_evaluator_traps (SCM new_values) | |
64 | #else | |
65 | SCM | |
66 | scm_evaluator_traps (new_values) | |
67 | SCM new_values; | |
68 | #endif | |
69 | { | |
70 | SCM ans; | |
71 | SCM_DEFER_INTS; | |
72 | ans = scm_change_options (new_values, | |
73 | scm_evaluator_trap_table, | |
74 | N_EVALUATOR_TRAPS, | |
75 | s_evaluator_traps); | |
76 | RESET_DEBUG_MODE; | |
77 | SCM_ALLOW_INTS | |
78 | return ans; | |
79 | } | |
80 | ||
81 | SCM_PROC (s_single_step, "single-step", 2, 0, 0, scm_single_step); | |
82 | #ifdef __STDC__ | |
83 | SCM | |
84 | scm_single_step (SCM cont, SCM val) | |
85 | #else | |
86 | SCM | |
87 | scm_single_step (val) | |
88 | SCM cont, SCM val; | |
89 | #endif | |
90 | { | |
91 | SCM_DEFER_INTS; | |
92 | ENTER_FRAME = EXIT_FRAME = 1; | |
93 | RESET_DEBUG_MODE; | |
94 | SCM_ALLOW_INTS; | |
95 | scm_throw (cont, val); | |
96 | return SCM_BOOL_F; /* never returns */ | |
97 | } | |
98 | ||
99 | \f | |
100 | static SCM scm_i_source, scm_i_more; | |
101 | static SCM scm_i_proc, scm_i_args, scm_i_eval_args; | |
102 | static SCM scm_i_procname; | |
103 | ||
104 | /* {Memoized Source} | |
105 | */ | |
106 | ||
107 | long scm_tc16_memoized; | |
108 | ||
109 | #ifdef __STDC__ | |
110 | static int | |
111 | prinmemoized (SCM obj, SCM port, int writing) | |
112 | #else | |
113 | static int | |
114 | prinmemoized (obj, port, writing) | |
115 | SCM obj; | |
116 | SCM port; | |
117 | int writing; | |
118 | #endif | |
119 | { | |
120 | scm_gen_puts (scm_regular_string, "#<memoized ", port); | |
121 | scm_iprin1 (scm_unmemoize (obj), port, 1); | |
122 | scm_gen_putc ('>', port); | |
123 | return 1; | |
124 | } | |
125 | ||
126 | static scm_smobfuns memoizedsmob = | |
127 | {scm_markcdr, scm_free0, prinmemoized, 0}; | |
128 | ||
129 | SCM_PROC (s_memoized_p, "memoized?", 1, 0, 0, scm_memoized_p); | |
130 | #ifdef __STDC__ | |
131 | SCM | |
132 | scm_memoized_p (SCM obj) | |
133 | #else | |
134 | SCM | |
135 | scm_memoized_p (obj) | |
136 | SCM obj; | |
137 | #endif | |
138 | { | |
139 | return SCM_NIMP (obj) && SCM_MEMOIZEDP (obj) ? SCM_BOOL_T : SCM_BOOL_F; | |
140 | } | |
141 | ||
142 | #ifdef __STDC__ | |
143 | SCM | |
144 | scm_make_memoized (SCM exp, SCM env) | |
145 | #else | |
146 | SCM | |
147 | scm_make_memoized (env) | |
148 | SCM exp, SCM env; | |
149 | #endif | |
150 | { | |
151 | register SCM z, ans; | |
152 | SCM_DEFER_INTS; | |
153 | SCM_NEWCELL (z); | |
154 | SCM_CAR (z) = exp; | |
155 | SCM_CDR (z) = env; | |
156 | SCM_NEWCELL (ans); | |
157 | SCM_CAR (ans) = scm_tc16_memoized; | |
158 | SCM_CDR (ans) = z; | |
159 | SCM_ALLOW_INTS; | |
160 | return ans; | |
161 | } | |
162 | ||
163 | SCM_PROC (s_unmemoize, "unmemoize", 1, 0, 0, scm_unmemoize); | |
164 | #ifdef __STDC__ | |
165 | SCM | |
166 | scm_unmemoize (SCM m) | |
167 | #else | |
168 | SCM | |
169 | scm_unmemoize (m) | |
170 | SCM m; | |
171 | #endif | |
172 | { | |
173 | SCM_ASSERT (SCM_MEMOIZEDP (m), m, SCM_ARG1, s_unmemoize); | |
174 | return scm_unmemocopy (SCM_MEMOEXP (m), SCM_MEMOENV (m)); | |
175 | } | |
176 | ||
177 | SCM_PROC (s_memoized_environment, "memoized-environment", 1, 0, 0, scm_memoized_environment); | |
178 | #ifdef __STDC__ | |
179 | SCM | |
180 | scm_memoized_environment (SCM m) | |
181 | #else | |
182 | SCM | |
183 | scm_memoized_environment (m) | |
184 | SCM m; | |
185 | #endif | |
186 | { | |
187 | SCM_ASSERT (SCM_MEMOIZEDP (m), m, SCM_ARG1, s_unmemoize); | |
188 | return SCM_MEMOENV (m); | |
189 | } | |
190 | ||
191 | SCM_PROC (s_procedure_name, "procedure-name", 1, 0, 0, scm_procedure_name); | |
192 | #ifdef __STDC__ | |
193 | SCM | |
194 | scm_procedure_name (SCM proc) | |
195 | #else | |
196 | SCM | |
197 | scm_procedure_name (proc) | |
198 | SCM proc; | |
199 | #endif | |
200 | { | |
201 | SCM_ASSERT(scm_procedure_p (proc) == SCM_BOOL_T, | |
202 | proc, | |
203 | SCM_ARG1, | |
204 | s_procedure_name); | |
205 | switch (SCM_TYP7 (proc)) { | |
206 | case scm_tcs_closures: | |
207 | { | |
208 | SCM name = scm_procedure_property (proc, scm_i_name); | |
209 | #if 0 | |
210 | /* Procedure property scm_i_procname not implemented yet... */ | |
211 | SCM name = scm_source_property (SCM_CAR (SCM_CDR (SCM_CODE (proc))), scm_i_procname); | |
212 | if (SCM_FALSEP (name)) | |
213 | name = scm_procedure_property (proc, scm_i_name); | |
214 | #endif | |
215 | return name; | |
216 | } | |
217 | case scm_tcs_subrs: | |
218 | return SCM_SNAME (proc); | |
219 | default: | |
220 | return SCM_BOOL_F; | |
221 | } | |
222 | } | |
223 | ||
224 | SCM_PROC (s_procedure_source, "procedure-source", 1, 0, 0, scm_procedure_source); | |
225 | #ifdef __STDC__ | |
226 | SCM | |
227 | scm_procedure_source (SCM proc) | |
228 | #else | |
229 | SCM | |
230 | scm_procedure_source (proc) | |
231 | SCM proc; | |
232 | #endif | |
233 | { | |
234 | SCM_ASSERT(SCM_NIMP (proc), proc, SCM_ARG1, s_procedure_source); | |
235 | switch (SCM_TYP7 (proc)) { | |
236 | case scm_tcs_closures: | |
237 | { | |
238 | SCM src; | |
239 | src = scm_source_property (SCM_CDR (SCM_CODE (proc)), scm_i_copy); | |
240 | if (src != SCM_BOOL_F) | |
241 | return scm_cons2 (scm_i_lambda, SCM_CAR (SCM_CODE (proc)), src); | |
242 | src = SCM_CODE (proc); | |
243 | return scm_cons (scm_i_lambda, | |
244 | scm_unmemocopy (src, | |
245 | SCM_EXTEND_SCM_ENV (SCM_CAR (src), | |
246 | SCM_EOL, | |
247 | SCM_ENV (proc)))); | |
248 | } | |
249 | case scm_tc7_contin: | |
250 | case scm_tcs_subrs: | |
251 | #ifdef CCLO | |
252 | case scm_tc7_cclo: | |
253 | #endif | |
254 | /* It would indeed be a nice thing if we supplied source even for | |
255 | built in procedures! */ | |
256 | return scm_procedure_property (proc, scm_i_source); | |
257 | default: | |
258 | scm_wta (proc, (char *) SCM_ARG1, s_procedure_source); | |
259 | return 0; | |
260 | } | |
261 | } | |
262 | ||
263 | SCM_PROC (s_procedure_environment, "procedure-environment", 1, 0, 0, scm_procedure_environment); | |
264 | #ifdef __STDC__ | |
265 | SCM | |
266 | scm_procedure_environment (SCM proc) | |
267 | #else | |
268 | SCM | |
269 | scm_procedure_environment (proc) | |
270 | SCM proc; | |
271 | #endif | |
272 | { | |
273 | SCM_ASSERT (SCM_NIMP (proc), proc, SCM_ARG1, s_procedure_environment); | |
274 | switch (SCM_TYP7 (proc)) { | |
275 | case scm_tcs_closures: | |
276 | return SCM_ENV (proc); | |
277 | case scm_tc7_contin: | |
278 | case scm_tcs_subrs: | |
279 | #ifdef CCLO | |
280 | case scm_tc7_cclo: | |
281 | #endif | |
282 | return SCM_EOL; | |
283 | default: | |
284 | scm_wta (proc, (char *) SCM_ARG1, s_procedure_environment); | |
285 | return 0; | |
286 | } | |
287 | } | |
288 | ||
289 | ||
290 | /* Eval in a local environment. We would like to have the ability to | |
291 | * evaluate in a specified local environment, but due to the memoization | |
292 | * this isn't normally possible. We solve it by copying the code before | |
293 | * evaluating. Probably the best solution would be to have eval.c generate | |
294 | * yet another evaluator. They are not very big actually. | |
295 | */ | |
296 | SCM_PROC (s_local_eval, "local-eval", 2, 0, 0, scm_local_eval); | |
297 | #ifdef __STDC__ | |
298 | SCM | |
299 | scm_local_eval (SCM exp, SCM env) | |
300 | #else | |
301 | SCM | |
302 | scm_local_eval (exp, env) | |
303 | SCM exp; | |
304 | SCM env; | |
305 | #endif | |
306 | { | |
307 | return scm_eval_3 (exp, 1, env); | |
308 | } | |
309 | ||
310 | /* {Stack Frames} | |
311 | * | |
312 | * The stack is a list of stackframes, from root to current. | |
313 | * | |
314 | * A stackframe is a list of virtual stackframes, which occur due to | |
315 | * the evaluators tail recursion. A virtual stackframe normally | |
316 | * corresponds to an eval/apply pair, but macros and special forms | |
317 | * (which are implemented as macros in scm...) only have eval | |
318 | * information and apply calls leads to apply only frames. | |
319 | * | |
320 | * A virtual stackframe is either a property list or the symbol | |
321 | * ... which marks the location of virtual stackframes which could not | |
322 | * be stored with the current debug-depth. | |
323 | * | |
324 | * Property Type Description | |
325 | * | |
326 | * These three only present in eval frames: | |
327 | * | |
328 | * sexpr memoized Source code expression and environment. | |
329 | * proc procedure The procedure being applied. | |
330 | * (Not present if pre-apply state.) | |
331 | * args list The arguments evaluated so far. | |
332 | * eval-args boolean True if evaluation of arguments not finished. | |
333 | */ | |
334 | ||
335 | /* {Debug Objects} | |
336 | * | |
337 | * The debugging evaluator throws these on frame traps. | |
338 | */ | |
339 | ||
340 | long scm_tc16_debugobj; | |
341 | ||
342 | #define DEBUGOBJP(x) (scm_tc16_debugobj == SCM_TYP16 (x)) | |
343 | #define DBGFRAME(x) SCM_CDR (x) | |
344 | ||
345 | #ifdef __STDC__ | |
346 | static int | |
347 | prindebugobj (SCM obj, SCM port, int writing) | |
348 | #else | |
349 | static int | |
350 | prindebugobj (writing) | |
351 | SCM obj, SCM port, int writing; | |
352 | #endif | |
353 | { | |
354 | scm_gen_puts (scm_regular_string, "#<debug-object ", port); | |
355 | scm_intprint (DBGFRAME (obj), 16, port); | |
356 | scm_gen_putc ('>', port); | |
357 | return 1; | |
358 | } | |
359 | ||
360 | static scm_smobfuns debugobjsmob = | |
361 | {scm_mark0, scm_free0, prindebugobj, 0}; | |
362 | ||
363 | SCM_PROC (s_debug_object_p, "debug-object?", 1, 0, 0, scm_debug_object_p); | |
364 | #ifdef __STDC__ | |
365 | SCM | |
366 | scm_debug_object_p (SCM obj) | |
367 | #else | |
368 | SCM | |
369 | scm_debug_object_p (obj) | |
370 | SCM obj; | |
371 | #endif | |
372 | { | |
373 | return SCM_NIMP (obj) && DEBUGOBJP (obj) ? SCM_BOOL_T : SCM_BOOL_F; | |
374 | } | |
375 | ||
376 | #ifdef __STDC__ | |
377 | SCM | |
378 | scm_make_debugobj (scm_debug_frame *frame) | |
379 | #else | |
380 | SCM | |
381 | scm_make_debugobj (frame) | |
382 | scm_debug_frame *frame; | |
383 | #endif | |
384 | { | |
385 | register SCM z; | |
386 | SCM_DEFER_INTS; | |
387 | SCM_NEWCELL (z); | |
388 | SCM_CAR (z) = scm_tc16_debugobj; | |
389 | DBGFRAME (z) = (SCM) frame; | |
390 | SCM_ALLOW_INTS; | |
391 | return z; | |
392 | } | |
393 | ||
394 | #ifdef __STDC__ | |
395 | static SCM | |
396 | _scm_stack_frame_to_plist (scm_debug_frame *frame, long offset) | |
397 | #else | |
398 | static SCM | |
399 | _scm_stack_frame_to_plist (frame, offset) | |
400 | scm_debug_frame *frame; | |
401 | long offset; | |
402 | #endif | |
403 | { | |
404 | int size; | |
405 | scm_debug_info *info; | |
406 | if (EVALFRAMEP (*frame)) | |
407 | { | |
408 | size = frame->status & MAXFRAMESIZE; | |
409 | info = (scm_debug_info *) (*((SCM_STACKITEM **) &frame->vect[size]) + offset); | |
410 | if ((info - frame->vect) & 1) | |
411 | { | |
412 | /* Debug.vect ends with apply info. */ | |
413 | SCM p; | |
414 | --info; | |
415 | if (info[1].a.proc == SCM_UNDEFINED) | |
416 | p = SCM_EOL; | |
417 | else | |
418 | p = scm_acons (scm_i_proc, | |
419 | info[1].a.proc, | |
420 | scm_acons (scm_i_args, | |
421 | info[1].a.args, | |
422 | ARGSREADYP (*frame) | |
423 | ? SCM_EOL | |
424 | : scm_acons (scm_i_eval_args, | |
425 | SCM_BOOL_T, | |
426 | SCM_EOL))); | |
427 | return scm_acons (scm_i_source, | |
428 | scm_make_memoized (info[0].e.exp, info[0].e.env), | |
429 | p); | |
430 | } | |
431 | else | |
432 | /* Debug.vect ends with eval info. */ | |
433 | return scm_acons (scm_i_source, | |
434 | scm_make_memoized (info[0].e.exp, info[0].e.env), | |
435 | SCM_EOL); | |
436 | } | |
437 | else | |
438 | return scm_acons (scm_i_proc, | |
439 | frame->vect[0].a.proc, | |
440 | scm_acons (scm_i_args, frame->vect[0].a.args, SCM_EOL)); | |
441 | } | |
442 | ||
443 | SCM_PROC (s_last_stack_frame, "last-stack-frame", 1, 0, 0, scm_last_stack_frame); | |
444 | #ifdef __STDC__ | |
445 | SCM | |
446 | scm_last_stack_frame (SCM obj) | |
447 | #else | |
448 | SCM | |
449 | scm_last_stack_frame (obj) | |
450 | SCM obj; | |
451 | #endif | |
452 | { | |
453 | scm_debug_frame *frame; | |
454 | long offset = 0; | |
455 | SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_last_stack_frame); | |
456 | if (scm_tc16_debugobj == SCM_TYP16 (obj)) | |
457 | frame = (scm_debug_frame *) DBGFRAME (obj); | |
458 | else if (scm_tc7_contin == SCM_TYP7 (obj)) | |
459 | { | |
460 | frame = SCM_DFRAME (obj); | |
461 | offset = (SCM_STACKITEM *) (SCM_CHARS (obj) + sizeof (regs)) - SCM_BASE (obj); | |
462 | #ifndef STACK_GROWS_UP | |
463 | offset += SCM_LENGTH (obj); | |
464 | #endif | |
465 | } | |
466 | else scm_wta (obj, (char *) SCM_ARG1, s_last_stack_frame); | |
467 | if (!frame) | |
468 | return SCM_BOOL_F; | |
469 | return _scm_stack_frame_to_plist ((scm_debug_frame *) ((SCM_STACKITEM *) frame + offset), offset); | |
470 | } | |
471 | ||
472 | /* Make a scheme object of the current evaluation stack. | |
473 | */ | |
474 | ||
475 | SCM_PROC (s_expr_stack, "expr-stack", 0, 1, 0, scm_expr_stack); | |
476 | #ifdef __STDC__ | |
477 | SCM | |
478 | scm_expr_stack (SCM obj) | |
479 | #else | |
480 | SCM | |
481 | scm_expr_stack (obj) | |
482 | SCM obj; | |
483 | #endif | |
484 | { | |
485 | SCM frs = SCM_EOL, vfrs, p; | |
486 | int size; | |
487 | int max_vfrs = BACKTRACE_DEPTH; | |
488 | scm_debug_info *info; | |
489 | scm_debug_frame *frame; | |
490 | long offset = 0; | |
491 | if (SCM_UNBNDP (obj)) | |
492 | frame = last_debug_info_frame; | |
493 | else | |
494 | { | |
495 | SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_expr_stack); | |
496 | if (scm_tc16_debugobj == SCM_TYP16 (obj)) | |
497 | frame = (scm_debug_frame *) DBGFRAME (obj); | |
498 | else if (scm_tc7_contin == SCM_TYP7 (obj)) | |
499 | { | |
500 | frame = SCM_DFRAME (obj); | |
501 | offset = (SCM_STACKITEM *) (SCM_CHARS (obj) + sizeof (regs)) - SCM_BASE (obj); | |
502 | #ifndef STACK_GROWS_UP | |
503 | offset += SCM_LENGTH (obj); | |
504 | #endif | |
505 | } | |
506 | else scm_wta (obj, (char *) SCM_ARG1, s_expr_stack); | |
507 | } | |
508 | for (; frame && max_vfrs > 0; frame = frame->prev) | |
509 | { | |
510 | frame = (scm_debug_frame *) ((SCM_STACKITEM *) frame + offset); | |
511 | p = _scm_stack_frame_to_plist (frame, offset); | |
512 | if (EVALFRAMEP (*frame)) | |
513 | { | |
514 | size = frame->status & MAXFRAMESIZE; | |
515 | info = (scm_debug_info *) (*((SCM_STACKITEM **) &frame->vect[size]) + offset); | |
516 | vfrs = SCM_EOL; | |
517 | if ((info - frame->vect) & 1) | |
518 | --info; | |
519 | /* Data in the apply part of an eval info frame comes from | |
520 | previous stack frame if the scm_debug_info vector is overflowed. */ | |
521 | else if (OVERFLOWP (*frame) | |
522 | && !SCM_UNBNDP (info[1].a.proc)) | |
523 | { | |
524 | vfrs = scm_cons (p, SCM_EOL); | |
525 | --max_vfrs; | |
526 | p = scm_acons (scm_i_proc, | |
527 | info[1].a.proc, | |
528 | scm_acons (scm_i_args, info[1].a.args, SCM_EOL)); | |
529 | } | |
530 | info -= 2; | |
531 | vfrs = scm_cons (p, vfrs); | |
532 | --max_vfrs; | |
533 | if (OVERFLOWP (*frame)) | |
534 | vfrs = scm_cons (scm_i_more, vfrs); | |
535 | while (info >= frame->vect) | |
536 | { | |
537 | p = SCM_EOL; | |
538 | if (!SCM_UNBNDP (info[1].a.proc)) | |
539 | p = scm_acons (scm_i_proc, | |
540 | info[1].a.proc, | |
541 | scm_acons (scm_i_args, info[1].a.args, SCM_EOL)); | |
542 | p = scm_acons (scm_i_source, | |
543 | scm_make_memoized (info[0].e.exp, info[0].e.env), | |
544 | p); | |
545 | info -= 2; | |
546 | vfrs = scm_cons (p, vfrs); | |
547 | --max_vfrs; | |
548 | } | |
549 | } | |
550 | else | |
551 | { | |
552 | vfrs = scm_cons (p, SCM_EOL); | |
553 | --max_vfrs; | |
554 | } | |
555 | frs = scm_cons (vfrs, frs); | |
556 | } | |
557 | if (max_vfrs <= 0) | |
558 | frs = scm_cons (scm_i_more, frs); | |
559 | return frs; | |
560 | } | |
561 | ||
562 | /* {Support for debugging with gdb} | |
563 | * | |
564 | * Gdb's support for debugging with Guile is written by Per Bothner at | |
565 | * Cygnus Support. | |
566 | */ | |
567 | ||
568 | /* debug_print is a handy function for calling from a debugger. | |
569 | * Given an SCM object, o, it executes (write o) to stdout. | |
570 | */ | |
571 | ||
572 | void debug_print (SCM o) | |
573 | { | |
574 | scm_write(o, scm_def_outp); | |
575 | fflush(NULL); | |
576 | } | |
577 | ||
578 | SCM_PROC (s_eval_string, "eval-string", 1, 0, 0, scm_eval_string); | |
579 | #ifdef __STDC__ | |
580 | SCM | |
581 | scm_eval_string (SCM str) | |
582 | #else | |
583 | SCM | |
584 | scm_eval_string (str) | |
585 | SCM str; | |
586 | #endif | |
587 | { | |
588 | str = scm_mkstrport (SCM_INUM0, str, SCM_OPN | SCM_RDNG, s_eval_string); | |
589 | str = scm_read (str, SCM_UNDEFINED, SCM_UNDEFINED); | |
590 | return XEVAL(str, (SCM) SCM_EOL); | |
591 | } | |
592 | ||
593 | #ifdef __STDC__ | |
594 | SCM | |
595 | scm_evstr (char *str) | |
596 | #else | |
597 | SCM | |
598 | scm_evstr (str) | |
599 | char *str; | |
600 | #endif | |
601 | { | |
602 | SCM lsym; | |
603 | SCM_NEWCELL(lsym); | |
604 | SCM_SETLENGTH (lsym, strlen(str)+0L, scm_tc7_ssymbol); | |
605 | SCM_SETCHARS (lsym, str); | |
606 | return scm_eval_string (lsym); | |
607 | } | |
608 | ||
609 | #ifdef __STDC__ | |
610 | SCM | |
611 | scm_lookup_cstr (char *str, int len, SCM env) | |
612 | #else | |
613 | SCM | |
614 | scm_lookup_cstr (str, len, env) | |
615 | char *str; | |
616 | int len; | |
617 | SCM env; | |
618 | #endif | |
619 | { | |
620 | SCM sym = scm_intern (str, len); | |
621 | SCM cell = scm_cons (sym, SCM_UNDEFINED); | |
622 | return (*scm_lookupcar (cell, env)); | |
623 | } | |
624 | ||
625 | ||
626 | \f | |
627 | ||
628 | void | |
629 | scm_init_debug () | |
630 | { | |
631 | scm_init_opts (scm_debug_options, scm_debug_opts, N_DEBUG_OPTIONS); | |
632 | ||
633 | scm_tc16_memoized = scm_newsmob (&memoizedsmob); | |
634 | scm_tc16_debugobj = scm_newsmob (&debugobjsmob); | |
635 | ||
636 | scm_i_procname = SCM_CAR (scm_sysintern ("procname", SCM_UNDEFINED)); | |
637 | scm_i_more = SCM_CAR (scm_sysintern ("...", SCM_UNDEFINED)); | |
638 | scm_i_source = SCM_CAR (scm_sysintern ("source", SCM_UNDEFINED)); | |
639 | scm_i_proc = SCM_CAR (scm_sysintern ("proc", SCM_UNDEFINED)); | |
640 | scm_i_args = SCM_CAR (scm_sysintern ("args", SCM_UNDEFINED)); | |
641 | scm_i_eval_args = SCM_CAR (scm_sysintern ("eval-args", SCM_UNDEFINED)); | |
642 | ||
643 | scm_add_feature ("debug-extensions"); | |
644 | ||
645 | #include "debug.x" | |
646 | } |