Commit | Line | Data |
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c906108c SS |
1 | /* Scheme/Guile language support routines for GDB, the GNU debugger. |
2 | Copyright 1995 Free Software Foundation, Inc. | |
3 | ||
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b JM |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include "symtab.h" | |
23 | #include "gdbtypes.h" | |
24 | #include "expression.h" | |
25 | #include "parser-defs.h" | |
26 | #include "language.h" | |
27 | #include "value.h" | |
28 | #include "scm-lang.h" | |
29 | #include "valprint.h" | |
30 | #include "gdbcore.h" | |
31 | ||
32 | /* FIXME: Should be in a header file that we import. */ | |
33 | extern int | |
34 | c_val_print PARAMS ((struct type *, char *, int, CORE_ADDR, GDB_FILE *, int, int, | |
35 | int, enum val_prettyprint)); | |
36 | ||
37 | static void scm_ipruk PARAMS ((char *, LONGEST, GDB_FILE *)); | |
38 | static void scm_scmlist_print PARAMS ((LONGEST, GDB_FILE *, int, int, | |
c5aa993b | 39 | int, enum val_prettyprint)); |
c906108c SS |
40 | static int scm_inferior_print PARAMS ((LONGEST, GDB_FILE *, int, int, |
41 | int, enum val_prettyprint)); | |
42 | ||
43 | /* Prints the SCM value VALUE by invoking the inferior, if appropraite. | |
44 | Returns >= 0 on succes; retunr -1 if the inferior cannot/should not | |
45 | print VALUE. */ | |
46 | ||
47 | static int | |
48 | scm_inferior_print (value, stream, format, deref_ref, recurse, pretty) | |
49 | LONGEST value; | |
50 | GDB_FILE *stream; | |
51 | int format; | |
52 | int deref_ref; | |
53 | int recurse; | |
54 | enum val_prettyprint pretty; | |
55 | { | |
56 | return -1; | |
57 | } | |
58 | ||
59 | /* {Names of immediate symbols} | |
60 | * This table must agree with the declarations in scm.h: {Immediate Symbols}.*/ | |
61 | ||
62 | static char *scm_isymnames[] = | |
63 | { | |
64 | /* This table must agree with the declarations */ | |
65 | "and", | |
66 | "begin", | |
67 | "case", | |
68 | "cond", | |
69 | "do", | |
70 | "if", | |
71 | "lambda", | |
72 | "let", | |
73 | "let*", | |
74 | "letrec", | |
75 | "or", | |
76 | "quote", | |
77 | "set!", | |
78 | "define", | |
79 | #if 0 | |
80 | "literal-variable-ref", | |
81 | "literal-variable-set!", | |
82 | #endif | |
83 | "apply", | |
84 | "call-with-current-continuation", | |
85 | ||
86 | /* user visible ISYMS */ | |
87 | /* other keywords */ | |
88 | /* Flags */ | |
89 | ||
90 | "#f", | |
91 | "#t", | |
92 | "#<undefined>", | |
93 | "#<eof>", | |
94 | "()", | |
95 | "#<unspecified>" | |
96 | }; | |
97 | ||
98 | static void | |
99 | scm_scmlist_print (svalue, stream, format, deref_ref, recurse, pretty) | |
100 | LONGEST svalue; | |
101 | GDB_FILE *stream; | |
102 | int format; | |
103 | int deref_ref; | |
104 | int recurse; | |
105 | enum val_prettyprint pretty; | |
106 | { | |
107 | unsigned int more = print_max; | |
108 | if (recurse > 6) | |
109 | { | |
110 | fputs_filtered ("...", stream); | |
111 | return; | |
112 | } | |
113 | scm_scmval_print (SCM_CAR (svalue), stream, format, | |
114 | deref_ref, recurse + 1, pretty); | |
115 | svalue = SCM_CDR (svalue); | |
116 | for (; SCM_NIMP (svalue); svalue = SCM_CDR (svalue)) | |
117 | { | |
118 | if (SCM_NECONSP (svalue)) | |
119 | break; | |
120 | fputs_filtered (" ", stream); | |
121 | if (--more == 0) | |
122 | { | |
123 | fputs_filtered ("...", stream); | |
124 | return; | |
125 | } | |
126 | scm_scmval_print (SCM_CAR (svalue), stream, format, | |
127 | deref_ref, recurse + 1, pretty); | |
128 | } | |
129 | if (SCM_NNULLP (svalue)) | |
130 | { | |
131 | fputs_filtered (" . ", stream); | |
132 | scm_scmval_print (svalue, stream, format, | |
133 | deref_ref, recurse + 1, pretty); | |
134 | } | |
135 | } | |
136 | ||
137 | static void | |
138 | scm_ipruk (hdr, ptr, stream) | |
139 | char *hdr; | |
140 | LONGEST ptr; | |
141 | GDB_FILE *stream; | |
142 | { | |
143 | fprintf_filtered (stream, "#<unknown-%s", hdr); | |
144 | #define SCM_SIZE TYPE_LENGTH (builtin_type_scm) | |
145 | if (SCM_CELLP (ptr)) | |
146 | fprintf_filtered (stream, " (0x%lx . 0x%lx) @", | |
147 | (long) SCM_CAR (ptr), (long) SCM_CDR (ptr)); | |
148 | fprintf_filtered (stream, " 0x%x>", ptr); | |
149 | } | |
150 | ||
151 | void | |
152 | scm_scmval_print (svalue, stream, format, deref_ref, recurse, pretty) | |
153 | LONGEST svalue; | |
154 | GDB_FILE *stream; | |
155 | int format; | |
156 | int deref_ref; | |
157 | int recurse; | |
158 | enum val_prettyprint pretty; | |
159 | { | |
c5aa993b | 160 | taloop: |
c906108c SS |
161 | switch (7 & (int) svalue) |
162 | { | |
163 | case 2: | |
164 | case 6: | |
165 | print_longest (stream, format ? format : 'd', 1, svalue >> 2); | |
166 | break; | |
167 | case 4: | |
168 | if (SCM_ICHRP (svalue)) | |
169 | { | |
170 | svalue = SCM_ICHR (svalue); | |
171 | scm_printchar (svalue, stream); | |
172 | break; | |
173 | } | |
174 | else if (SCM_IFLAGP (svalue) | |
175 | && (SCM_ISYMNUM (svalue) | |
176 | < (sizeof scm_isymnames / sizeof (char *)))) | |
177 | { | |
178 | fputs_filtered (SCM_ISYMCHARS (svalue), stream); | |
179 | break; | |
180 | } | |
181 | else if (SCM_ILOCP (svalue)) | |
182 | { | |
183 | fprintf_filtered (stream, "#@%ld%c%ld", | |
184 | (long) SCM_IFRAME (svalue), | |
185 | SCM_ICDRP (svalue) ? '-' : '+', | |
186 | (long) SCM_IDIST (svalue)); | |
187 | break; | |
188 | } | |
189 | else | |
190 | goto idef; | |
191 | break; | |
192 | case 1: | |
193 | /* gloc */ | |
194 | svalue = SCM_CAR (svalue - 1); | |
195 | goto taloop; | |
196 | default: | |
197 | idef: | |
198 | scm_ipruk ("immediate", svalue, stream); | |
199 | break; | |
200 | case 0: | |
201 | ||
202 | switch (SCM_TYP7 (svalue)) | |
203 | { | |
204 | case scm_tcs_cons_gloc: | |
205 | if (SCM_CDR (SCM_CAR (svalue) - 1L) == 0) | |
206 | { | |
207 | #if 0 | |
208 | SCM name; | |
209 | #endif | |
210 | fputs_filtered ("#<latte ", stream); | |
211 | #if 1 | |
212 | fputs_filtered ("???", stream); | |
213 | #else | |
c5aa993b | 214 | name = ((SCM n *) (STRUCT_TYPE (exp)))[struct_i_name]; |
c906108c SS |
215 | scm_lfwrite (CHARS (name), |
216 | (sizet) sizeof (char), | |
c5aa993b | 217 | (sizet) LENGTH (name), |
c906108c SS |
218 | port); |
219 | #endif | |
220 | fprintf_filtered (stream, " #X%lX>", svalue); | |
221 | break; | |
222 | } | |
223 | case scm_tcs_cons_imcar: | |
224 | case scm_tcs_cons_nimcar: | |
225 | fputs_filtered ("(", stream); | |
226 | scm_scmlist_print (svalue, stream, format, | |
227 | deref_ref, recurse + 1, pretty); | |
228 | fputs_filtered (")", stream); | |
229 | break; | |
230 | case scm_tcs_closures: | |
231 | fputs_filtered ("#<CLOSURE ", stream); | |
232 | scm_scmlist_print (SCM_CODE (svalue), stream, format, | |
233 | deref_ref, recurse + 1, pretty); | |
234 | fputs_filtered (">", stream); | |
235 | break; | |
236 | case scm_tc7_string: | |
237 | { | |
238 | int len = SCM_LENGTH (svalue); | |
239 | CORE_ADDR addr = (CORE_ADDR) SCM_CDR (svalue); | |
240 | int i; | |
241 | int done = 0; | |
242 | int buf_size; | |
243 | char buffer[64]; | |
244 | int truncate = print_max && len > (int) print_max; | |
245 | if (truncate) | |
246 | len = print_max; | |
247 | fputs_filtered ("\"", stream); | |
248 | for (; done < len; done += buf_size) | |
249 | { | |
250 | buf_size = min (len - done, 64); | |
251 | read_memory (addr + done, buffer, buf_size); | |
c5aa993b | 252 | |
c906108c SS |
253 | for (i = 0; i < buf_size; ++i) |
254 | switch (buffer[i]) | |
255 | { | |
256 | case '\"': | |
257 | case '\\': | |
258 | fputs_filtered ("\\", stream); | |
259 | default: | |
260 | fprintf_filtered (stream, "%c", buffer[i]); | |
261 | } | |
262 | } | |
263 | fputs_filtered (truncate ? "...\"" : "\"", stream); | |
264 | break; | |
265 | } | |
266 | break; | |
267 | case scm_tcs_symbols: | |
268 | { | |
269 | int len = SCM_LENGTH (svalue); | |
270 | ||
c5aa993b | 271 | char *str = (char *) alloca (len); |
c906108c SS |
272 | read_memory (SCM_CDR (svalue), str, len + 1); |
273 | /* Should handle weird characters FIXME */ | |
274 | str[len] = '\0'; | |
275 | fputs_filtered (str, stream); | |
276 | break; | |
277 | } | |
278 | case scm_tc7_vector: | |
279 | { | |
280 | int len = SCM_LENGTH (svalue); | |
281 | int i; | |
c5aa993b | 282 | LONGEST elements = SCM_CDR (svalue); |
c906108c SS |
283 | fputs_filtered ("#(", stream); |
284 | for (i = 0; i < len; ++i) | |
285 | { | |
286 | if (i > 0) | |
287 | fputs_filtered (" ", stream); | |
288 | scm_scmval_print (scm_get_field (elements, i), stream, format, | |
289 | deref_ref, recurse + 1, pretty); | |
290 | } | |
291 | fputs_filtered (")", stream); | |
292 | } | |
293 | break; | |
294 | #if 0 | |
295 | case tc7_lvector: | |
296 | { | |
297 | SCM result; | |
298 | SCM hook; | |
299 | hook = scm_get_lvector_hook (exp, LV_PRINT_FN); | |
300 | if (hook == BOOL_F) | |
301 | { | |
302 | scm_puts ("#<locked-vector ", port); | |
c5aa993b | 303 | scm_intprint (CDR (exp), 16, port); |
c906108c SS |
304 | scm_puts (">", port); |
305 | } | |
306 | else | |
307 | { | |
308 | result | |
309 | = scm_apply (hook, | |
c5aa993b JM |
310 | scm_listify (exp, port, (writing ? BOOL_T : BOOL_F), |
311 | SCM_UNDEFINED), | |
c906108c SS |
312 | EOL); |
313 | if (result == BOOL_F) | |
314 | goto punk; | |
315 | } | |
316 | break; | |
317 | } | |
318 | break; | |
319 | case tc7_bvect: | |
320 | case tc7_ivect: | |
321 | case tc7_uvect: | |
322 | case tc7_fvect: | |
323 | case tc7_dvect: | |
324 | case tc7_cvect: | |
325 | scm_raprin1 (exp, port, writing); | |
326 | break; | |
327 | #endif | |
328 | case scm_tcs_subrs: | |
329 | { | |
330 | int index = SCM_CAR (svalue) >> 8; | |
331 | #if 1 | |
332 | char str[20]; | |
333 | sprintf (str, "#%d", index); | |
334 | #else | |
c5aa993b | 335 | char *str = index ? SCM_CHARS (scm_heap_org + index) : ""; |
c906108c SS |
336 | #define SCM_CHARS(x) ((char *)(SCM_CDR(x))) |
337 | char *str = CHARS (SNAME (exp)); | |
338 | #endif | |
339 | fprintf_filtered (stream, "#<primitive-procedure %s>", | |
340 | str); | |
341 | } | |
342 | break; | |
343 | #if 0 | |
344 | #ifdef CCLO | |
345 | case tc7_cclo: | |
346 | scm_puts ("#<compiled-closure ", port); | |
347 | scm_iprin1 (CCLO_SUBR (exp), port, writing); | |
348 | scm_putc ('>', port); | |
349 | break; | |
350 | #endif | |
351 | case tc7_contin: | |
352 | fprintf_filtered (stream, "#<continuation %d @ #X%lx >", | |
353 | LENGTH (svalue), | |
354 | (long) CHARS (svalue)); | |
355 | break; | |
356 | case tc7_port: | |
357 | i = PTOBNUM (exp); | |
358 | if (i < scm_numptob && scm_ptobs[i].print && (scm_ptobs[i].print) (exp, port, writing)) | |
359 | break; | |
360 | goto punk; | |
361 | case tc7_smob: | |
362 | i = SMOBNUM (exp); | |
363 | if (i < scm_numsmob && scm_smobs[i].print | |
364 | && (scm_smobs[i].print) (exp, port, writing)) | |
365 | break; | |
366 | goto punk; | |
367 | #endif | |
368 | default: | |
369 | #if 0 | |
370 | punk: | |
371 | #endif | |
372 | scm_ipruk ("type", svalue, stream); | |
373 | } | |
374 | break; | |
375 | } | |
376 | } | |
377 | ||
378 | int | |
379 | scm_val_print (type, valaddr, embedded_offset, address, | |
c5aa993b | 380 | stream, format, deref_ref, recurse, pretty) |
c906108c SS |
381 | struct type *type; |
382 | char *valaddr; | |
383 | int embedded_offset; | |
384 | CORE_ADDR address; | |
385 | GDB_FILE *stream; | |
386 | int format; | |
387 | int deref_ref; | |
388 | int recurse; | |
389 | enum val_prettyprint pretty; | |
390 | { | |
391 | if (is_scmvalue_type (type)) | |
392 | { | |
393 | LONGEST svalue = extract_signed_integer (valaddr, TYPE_LENGTH (type)); | |
394 | if (scm_inferior_print (svalue, stream, format, | |
395 | deref_ref, recurse, pretty) >= 0) | |
396 | { | |
397 | } | |
398 | else | |
399 | { | |
400 | scm_scmval_print (svalue, stream, format, | |
c5aa993b | 401 | deref_ref, recurse, pretty); |
c906108c SS |
402 | } |
403 | ||
404 | gdb_flush (stream); | |
405 | return (0); | |
406 | } | |
407 | else | |
408 | { | |
409 | return c_val_print (type, valaddr, 0, address, stream, format, | |
410 | deref_ref, recurse, pretty); | |
411 | } | |
412 | } | |
413 | ||
414 | int | |
415 | scm_value_print (val, stream, format, pretty) | |
416 | value_ptr val; | |
417 | GDB_FILE *stream; | |
418 | int format; | |
419 | enum val_prettyprint pretty; | |
420 | { | |
421 | return (val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), 0, | |
422 | VALUE_ADDRESS (val), stream, format, 1, 0, pretty)); | |
423 | } |