Commit | Line | Data |
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5b4d668a PB |
1 | /* Scheme/Guile language support routines for GDB, the GNU debugger. |
2 | Copyright 1995 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
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. | |
10 | ||
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. | |
15 | ||
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, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "gdbtypes.h" | |
23 | #include "expression.h" | |
24 | #include "parser-defs.h" | |
25 | #include "language.h" | |
26 | #include "value.h" | |
27 | #include "scm-lang.h" | |
28 | #include "valprint.h" | |
29 | ||
30 | /* Prints the SCM value VALUE by invoking the inferior, if appropraite. | |
31 | Returns >= 0 on succes; retunr -1 if the inferior cannot/should not | |
32 | print VALUE. */ | |
33 | ||
34 | int | |
35 | scm_inferior_print (value, stream, format, deref_ref, recurse, pretty) | |
36 | LONGEST value; | |
37 | GDB_FILE *stream; | |
38 | int format; | |
39 | int deref_ref; | |
40 | int recurse; | |
41 | enum val_prettyprint pretty; | |
42 | { | |
43 | return -1; | |
44 | } | |
45 | ||
46 | /* {Names of immediate symbols} | |
47 | * This table must agree with the declarations in scm.h: {Immediate Symbols}.*/ | |
48 | ||
49 | static char *scm_isymnames[] = | |
50 | { | |
51 | /* This table must agree with the declarations */ | |
dcdba37e PB |
52 | "and", |
53 | "begin", | |
54 | "case", | |
55 | "cond", | |
56 | "do", | |
57 | "if", | |
58 | "lambda", | |
59 | "let", | |
60 | "let*", | |
61 | "letrec", | |
62 | "or", | |
63 | "quote", | |
64 | "set!", | |
65 | "define", | |
5b4d668a | 66 | #if 0 |
dcdba37e PB |
67 | "literal-variable-ref", |
68 | "literal-variable-set!", | |
5b4d668a | 69 | #endif |
dcdba37e PB |
70 | "apply", |
71 | "call-with-current-continuation", | |
5b4d668a PB |
72 | |
73 | /* user visible ISYMS */ | |
74 | /* other keywords */ | |
75 | /* Flags */ | |
76 | ||
77 | "#f", | |
78 | "#t", | |
79 | "#<undefined>", | |
80 | "#<eof>", | |
81 | "()", | |
82 | "#<unspecified>" | |
83 | }; | |
84 | ||
85 | static int | |
86 | scm_scmlist_print (svalue, stream, format, deref_ref, recurse, pretty) | |
87 | LONGEST svalue; | |
88 | GDB_FILE *stream; | |
89 | int format; | |
90 | int deref_ref; | |
91 | int recurse; | |
92 | enum val_prettyprint pretty; | |
93 | { | |
94 | unsigned int more = print_max; | |
95 | if (recurse > 6) | |
96 | { | |
97 | fputs_filtered ("...", stream); | |
98 | return 0; | |
99 | } | |
100 | scm_scmval_print (SCM_CAR (svalue), stream, format, | |
101 | deref_ref, recurse + 1, pretty); | |
102 | svalue = SCM_CDR (svalue); | |
103 | for (; SCM_NIMP (svalue); svalue = SCM_CDR (svalue)) | |
104 | { | |
105 | if (SCM_NECONSP (svalue)) | |
106 | break; | |
107 | fputs_filtered (" ", stream); | |
108 | if (--more == 0) | |
109 | { | |
110 | fputs_filtered ("...", stream); | |
111 | return; | |
112 | } | |
113 | scm_scmval_print (SCM_CAR (svalue), stream, format, | |
114 | deref_ref, recurse + 1, pretty); | |
115 | } | |
116 | if (SCM_NNULLP (svalue)) | |
117 | { | |
118 | fputs_filtered (" . ", stream); | |
119 | scm_scmval_print (svalue, stream, format, | |
120 | deref_ref, recurse + 1, pretty); | |
121 | } | |
122 | } | |
123 | ||
124 | static void | |
125 | scm_ipruk (hdr, ptr, stream) | |
126 | char *hdr; | |
127 | LONGEST ptr; | |
128 | GDB_FILE *stream; | |
129 | { | |
130 | fprintf_filtered (stream, "#<unknown-%s", hdr); | |
3c02944a | 131 | #define SCM_SIZE TYPE_LENGTH (builtin_type_scm) |
5b4d668a PB |
132 | if (SCM_CELLP (ptr)) |
133 | fprintf_filtered (stream, " (0x%lx . 0x%lx) @", | |
134 | (long) SCM_CAR (ptr), (long) SCM_CDR (ptr)); | |
135 | fprintf_filtered (stream, " 0x%x>", ptr); | |
136 | } | |
137 | ||
138 | int | |
139 | scm_scmval_print (svalue, stream, format, deref_ref, recurse, pretty) | |
140 | LONGEST svalue; | |
141 | GDB_FILE *stream; | |
142 | int format; | |
143 | int deref_ref; | |
144 | int recurse; | |
145 | enum val_prettyprint pretty; | |
146 | { | |
147 | taloop: | |
148 | switch (7 & svalue) | |
149 | { | |
150 | case 2: | |
151 | case 6: | |
152 | print_longest (stream, format ? format : 'd', 1, svalue >> 2); | |
153 | break; | |
154 | case 4: | |
155 | if (SCM_ICHRP (svalue)) | |
156 | { | |
157 | svalue = SCM_ICHR (svalue); | |
158 | scm_printchar (svalue, stream); | |
159 | break; | |
160 | } | |
161 | else if (SCM_IFLAGP (svalue) | |
162 | && (SCM_ISYMNUM (svalue) | |
163 | < (sizeof scm_isymnames / sizeof (char *)))) | |
164 | { | |
165 | fputs_filtered (SCM_ISYMCHARS (svalue), stream); | |
166 | break; | |
167 | } | |
168 | else if (SCM_ILOCP (svalue)) | |
169 | { | |
170 | fprintf_filtered (stream, "#@%ld%c%ld", | |
171 | (long) SCM_IFRAME (svalue), | |
172 | SCM_ICDRP (svalue) ? '-' : '+', | |
173 | (long) SCM_IDIST (svalue)); | |
174 | break; | |
175 | } | |
176 | else | |
177 | goto idef; | |
178 | break; | |
179 | case 1: | |
180 | /* gloc */ | |
5b4d668a PB |
181 | svalue = SCM_CAR (svalue - 1); |
182 | goto taloop; | |
183 | default: | |
184 | idef: | |
185 | scm_ipruk ("immediate", svalue, stream); | |
186 | break; | |
187 | case 0: | |
188 | ||
189 | switch (SCM_TYP7 (svalue)) | |
190 | { | |
191 | case scm_tcs_cons_gloc: | |
192 | if (SCM_CDR (SCM_CAR (svalue) - 1L) == 0) | |
193 | { | |
194 | SCM name; | |
195 | fputs_filtered ("#<latte ", stream); | |
196 | #if 1 | |
197 | fputs_filtered ("???", stream); | |
198 | #else | |
199 | name = ((SCM n*)(STRUCT_TYPE( exp)))[struct_i_name]; | |
200 | scm_lfwrite (CHARS (name), | |
201 | (sizet) sizeof (char), | |
202 | (sizet) LENGTH (name), | |
203 | port); | |
204 | #endif | |
205 | fprintf_filtered (stream, " #X%lX>", svalue); | |
206 | break; | |
207 | } | |
208 | case scm_tcs_cons_imcar: | |
209 | case scm_tcs_cons_nimcar: | |
210 | fputs_filtered ("(", stream); | |
211 | scm_scmlist_print (svalue, stream, format, | |
212 | deref_ref, recurse + 1, pretty); | |
213 | fputs_filtered (")", stream); | |
214 | break; | |
215 | case scm_tcs_closures: | |
216 | fputs_filtered ("#<CLOSURE ", stream); | |
217 | scm_scmlist_print (SCM_CODE (svalue), stream, format, | |
218 | deref_ref, recurse + 1, pretty); | |
219 | fputs_filtered (">", stream); | |
220 | break; | |
221 | case scm_tc7_string: | |
222 | { | |
223 | int len = SCM_LENGTH (svalue); | |
224 | CORE_ADDR addr = (CORE_ADDR) SCM_CDR (svalue); | |
225 | int i; | |
226 | int done = 0; | |
227 | int buf_size; | |
228 | char buffer[64]; | |
229 | int truncate = print_max && len > (int) print_max; | |
230 | if (truncate) | |
231 | len = print_max; | |
232 | fputs_filtered ("\"", stream); | |
233 | for (; done < len; done += buf_size) | |
234 | { | |
235 | buf_size = min (len - done, 64); | |
236 | read_memory (addr + done, buffer, buf_size); | |
237 | ||
238 | for (i = 0; i < buf_size; ++i) | |
239 | switch (buffer[i]) | |
240 | { | |
241 | case '\"': | |
242 | case '\\': | |
243 | fputs_filtered ("\\", stream); | |
244 | default: | |
245 | fprintf_filtered (stream, "%c", buffer[i]); | |
246 | } | |
247 | } | |
248 | fputs_filtered (truncate ? "...\"" : "\"", stream); | |
249 | break; | |
250 | } | |
251 | break; | |
252 | case scm_tcs_symbols: | |
253 | { | |
254 | int len = SCM_LENGTH (svalue); | |
255 | ||
256 | char * str = (char*) alloca (len); | |
257 | read_memory (SCM_CDR (svalue), str, len + 1); | |
258 | /* Should handle weird characters FIXME */ | |
259 | str[len] = '\0'; | |
260 | fputs_filtered (str, stream); | |
261 | break; | |
262 | } | |
263 | case scm_tc7_vector: | |
264 | { | |
265 | int len = SCM_LENGTH (svalue); | |
266 | int i; | |
267 | LONGEST elements = SCM_CDR(svalue); | |
268 | fputs_filtered ("#(", stream); | |
269 | for (i = 0; i < len; ++i) | |
270 | { | |
271 | if (i > 0) | |
272 | fputs_filtered (" ", stream); | |
273 | scm_scmval_print (scm_get_field (elements, i), stream, format, | |
274 | deref_ref, recurse + 1, pretty); | |
275 | } | |
276 | fputs_filtered (")", stream); | |
277 | } | |
278 | break; | |
279 | #if 0 | |
280 | case tc7_lvector: | |
281 | { | |
282 | SCM result; | |
283 | SCM hook; | |
284 | hook = scm_get_lvector_hook (exp, LV_PRINT_FN); | |
285 | if (hook == BOOL_F) | |
286 | { | |
287 | scm_puts ("#<locked-vector ", port); | |
288 | scm_intprint(CDR(exp), 16, port); | |
289 | scm_puts (">", port); | |
290 | } | |
291 | else | |
292 | { | |
293 | result | |
294 | = scm_apply (hook, | |
295 | scm_listify (exp, port, (writing ? BOOL_T : BOOL_F), | |
296 | SCM_UNDEFINED), | |
297 | EOL); | |
298 | if (result == BOOL_F) | |
299 | goto punk; | |
300 | } | |
301 | break; | |
302 | } | |
303 | break; | |
304 | case tc7_bvect: | |
305 | case tc7_ivect: | |
306 | case tc7_uvect: | |
307 | case tc7_fvect: | |
308 | case tc7_dvect: | |
309 | case tc7_cvect: | |
310 | scm_raprin1 (exp, port, writing); | |
311 | break; | |
312 | #endif | |
313 | case scm_tcs_subrs: | |
314 | { | |
315 | int index = SCM_CAR (svalue) >> 8; | |
316 | #if 1 | |
317 | char str[20]; | |
318 | sprintf (str, "#%d", index); | |
319 | #else | |
320 | char *str = index ? SCM_CHARS (scm_heap_org+index) : ""; | |
321 | #define SCM_CHARS(x) ((char *)(SCM_CDR(x))) | |
322 | char *str = CHARS (SNAME (exp)); | |
323 | #endif | |
324 | fprintf_filtered (stream, "#<primitive-procedure %s>", | |
325 | str); | |
326 | } | |
327 | break; | |
328 | #if 0 | |
329 | #ifdef CCLO | |
330 | case tc7_cclo: | |
331 | scm_puts ("#<compiled-closure ", port); | |
332 | scm_iprin1 (CCLO_SUBR (exp), port, writing); | |
333 | scm_putc ('>', port); | |
334 | break; | |
335 | #endif | |
336 | case tc7_contin: | |
337 | fprintf_filtered (stream, "#<continuation %d @ #X%lx >", | |
338 | LENGTH (svalue), | |
339 | (long) CHARS (svalue)); | |
340 | break; | |
341 | case tc7_port: | |
342 | i = PTOBNUM (exp); | |
343 | if (i < scm_numptob && scm_ptobs[i].print && (scm_ptobs[i].print) (exp, port, writing)) | |
344 | break; | |
345 | goto punk; | |
346 | case tc7_smob: | |
347 | i = SMOBNUM (exp); | |
348 | if (i < scm_numsmob && scm_smobs[i].print | |
349 | && (scm_smobs[i].print) (exp, port, writing)) | |
350 | break; | |
351 | goto punk; | |
352 | #endif | |
353 | default: | |
354 | punk:scm_ipruk ("type", svalue, stream); | |
355 | } | |
356 | break; | |
357 | } | |
358 | } | |
359 | ||
360 | int | |
361 | scm_val_print (type, valaddr, address, stream, format, deref_ref, recurse, | |
362 | pretty) | |
363 | struct type *type; | |
364 | char *valaddr; | |
365 | CORE_ADDR address; | |
366 | GDB_FILE *stream; | |
367 | int format; | |
368 | int deref_ref; | |
369 | int recurse; | |
370 | enum val_prettyprint pretty; | |
371 | { | |
372 | if (is_scmvalue_type (type)) | |
373 | { | |
3c02944a | 374 | LONGEST svalue = extract_signed_integer (valaddr, TYPE_LENGTH (type)); |
5b4d668a PB |
375 | if (scm_inferior_print (svalue, stream, format, |
376 | deref_ref, recurse, pretty) >= 0) | |
377 | { | |
378 | } | |
379 | else | |
380 | { | |
381 | scm_scmval_print (svalue, stream, format, | |
382 | deref_ref, recurse, pretty); | |
383 | } | |
384 | ||
385 | gdb_flush (stream); | |
386 | return (0); | |
387 | } | |
388 | else | |
389 | { | |
390 | return c_val_print (type, valaddr, address, stream, format, | |
391 | deref_ref, recurse, pretty); | |
392 | } | |
393 | } | |
394 | ||
395 | int | |
396 | scm_value_print (val, stream, format, pretty) | |
397 | value_ptr val; | |
398 | GDB_FILE *stream; | |
399 | int format; | |
400 | enum val_prettyprint pretty; | |
401 | { | |
402 | return (val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), | |
403 | VALUE_ADDRESS (val), stream, format, 1, 0, pretty)); | |
404 | } |