| 1 | /* Scheme/Guile language support routines for GDB, the GNU debugger. |
| 2 | Copyright 1995, 1996, 1998, 1999, 2000, 2001 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 20 | Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #include "defs.h" |
| 23 | #include "symtab.h" |
| 24 | #include "gdbtypes.h" |
| 25 | #include "expression.h" |
| 26 | #include "parser-defs.h" |
| 27 | #include "language.h" |
| 28 | #include "value.h" |
| 29 | #include "scm-lang.h" |
| 30 | #include "valprint.h" |
| 31 | #include "gdbcore.h" |
| 32 | |
| 33 | /* FIXME: Should be in a header file that we import. */ |
| 34 | extern int c_val_print (struct type *, char *, int, CORE_ADDR, |
| 35 | struct ui_file *, int, int, int, |
| 36 | enum val_prettyprint); |
| 37 | |
| 38 | static void scm_ipruk (char *, LONGEST, struct ui_file *); |
| 39 | static void scm_scmlist_print (LONGEST, struct ui_file *, int, int, |
| 40 | int, enum val_prettyprint); |
| 41 | static int scm_inferior_print (LONGEST, struct ui_file *, int, int, |
| 42 | int, enum val_prettyprint); |
| 43 | |
| 44 | /* Prints the SCM value VALUE by invoking the inferior, if appropraite. |
| 45 | Returns >= 0 on succes; retunr -1 if the inferior cannot/should not |
| 46 | print VALUE. */ |
| 47 | |
| 48 | static int |
| 49 | scm_inferior_print (LONGEST value, struct ui_file *stream, int format, |
| 50 | int deref_ref, int recurse, enum val_prettyprint pretty) |
| 51 | { |
| 52 | return -1; |
| 53 | } |
| 54 | |
| 55 | /* {Names of immediate symbols} |
| 56 | * This table must agree with the declarations in scm.h: {Immediate Symbols}.*/ |
| 57 | |
| 58 | static char *scm_isymnames[] = |
| 59 | { |
| 60 | /* This table must agree with the declarations */ |
| 61 | "and", |
| 62 | "begin", |
| 63 | "case", |
| 64 | "cond", |
| 65 | "do", |
| 66 | "if", |
| 67 | "lambda", |
| 68 | "let", |
| 69 | "let*", |
| 70 | "letrec", |
| 71 | "or", |
| 72 | "quote", |
| 73 | "set!", |
| 74 | "define", |
| 75 | #if 0 |
| 76 | "literal-variable-ref", |
| 77 | "literal-variable-set!", |
| 78 | #endif |
| 79 | "apply", |
| 80 | "call-with-current-continuation", |
| 81 | |
| 82 | /* user visible ISYMS */ |
| 83 | /* other keywords */ |
| 84 | /* Flags */ |
| 85 | |
| 86 | "#f", |
| 87 | "#t", |
| 88 | "#<undefined>", |
| 89 | "#<eof>", |
| 90 | "()", |
| 91 | "#<unspecified>" |
| 92 | }; |
| 93 | |
| 94 | static void |
| 95 | scm_scmlist_print (LONGEST svalue, struct ui_file *stream, int format, |
| 96 | int deref_ref, int recurse, enum val_prettyprint pretty) |
| 97 | { |
| 98 | unsigned int more = print_max; |
| 99 | if (recurse > 6) |
| 100 | { |
| 101 | fputs_filtered ("...", stream); |
| 102 | return; |
| 103 | } |
| 104 | scm_scmval_print (SCM_CAR (svalue), stream, format, |
| 105 | deref_ref, recurse + 1, pretty); |
| 106 | svalue = SCM_CDR (svalue); |
| 107 | for (; SCM_NIMP (svalue); svalue = SCM_CDR (svalue)) |
| 108 | { |
| 109 | if (SCM_NECONSP (svalue)) |
| 110 | break; |
| 111 | fputs_filtered (" ", stream); |
| 112 | if (--more == 0) |
| 113 | { |
| 114 | fputs_filtered ("...", stream); |
| 115 | return; |
| 116 | } |
| 117 | scm_scmval_print (SCM_CAR (svalue), stream, format, |
| 118 | deref_ref, recurse + 1, pretty); |
| 119 | } |
| 120 | if (SCM_NNULLP (svalue)) |
| 121 | { |
| 122 | fputs_filtered (" . ", stream); |
| 123 | scm_scmval_print (svalue, stream, format, |
| 124 | deref_ref, recurse + 1, pretty); |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | static void |
| 129 | scm_ipruk (char *hdr, LONGEST ptr, struct ui_file *stream) |
| 130 | { |
| 131 | fprintf_filtered (stream, "#<unknown-%s", hdr); |
| 132 | #define SCM_SIZE TYPE_LENGTH (builtin_type_scm) |
| 133 | if (SCM_CELLP (ptr)) |
| 134 | fprintf_filtered (stream, " (0x%lx . 0x%lx) @", |
| 135 | (long) SCM_CAR (ptr), (long) SCM_CDR (ptr)); |
| 136 | fprintf_filtered (stream, " 0x%s>", paddr_nz (ptr)); |
| 137 | } |
| 138 | |
| 139 | void |
| 140 | scm_scmval_print (LONGEST svalue, struct ui_file *stream, int format, |
| 141 | int deref_ref, int recurse, enum val_prettyprint pretty) |
| 142 | { |
| 143 | taloop: |
| 144 | switch (7 & (int) svalue) |
| 145 | { |
| 146 | case 2: |
| 147 | case 6: |
| 148 | print_longest (stream, format ? format : 'd', 1, svalue >> 2); |
| 149 | break; |
| 150 | case 4: |
| 151 | if (SCM_ICHRP (svalue)) |
| 152 | { |
| 153 | svalue = SCM_ICHR (svalue); |
| 154 | scm_printchar (svalue, stream); |
| 155 | break; |
| 156 | } |
| 157 | else if (SCM_IFLAGP (svalue) |
| 158 | && (SCM_ISYMNUM (svalue) |
| 159 | < (sizeof scm_isymnames / sizeof (char *)))) |
| 160 | { |
| 161 | fputs_filtered (SCM_ISYMCHARS (svalue), stream); |
| 162 | break; |
| 163 | } |
| 164 | else if (SCM_ILOCP (svalue)) |
| 165 | { |
| 166 | fprintf_filtered (stream, "#@%ld%c%ld", |
| 167 | (long) SCM_IFRAME (svalue), |
| 168 | SCM_ICDRP (svalue) ? '-' : '+', |
| 169 | (long) SCM_IDIST (svalue)); |
| 170 | break; |
| 171 | } |
| 172 | else |
| 173 | goto idef; |
| 174 | break; |
| 175 | case 1: |
| 176 | /* gloc */ |
| 177 | svalue = SCM_CAR (svalue - 1); |
| 178 | goto taloop; |
| 179 | default: |
| 180 | idef: |
| 181 | scm_ipruk ("immediate", svalue, stream); |
| 182 | break; |
| 183 | case 0: |
| 184 | |
| 185 | switch (SCM_TYP7 (svalue)) |
| 186 | { |
| 187 | case scm_tcs_cons_gloc: |
| 188 | if (SCM_CDR (SCM_CAR (svalue) - 1L) == 0) |
| 189 | { |
| 190 | #if 0 |
| 191 | SCM name; |
| 192 | #endif |
| 193 | fputs_filtered ("#<latte ", stream); |
| 194 | #if 1 |
| 195 | fputs_filtered ("???", stream); |
| 196 | #else |
| 197 | name = ((SCM n *) (STRUCT_TYPE (exp)))[struct_i_name]; |
| 198 | scm_lfwrite (CHARS (name), |
| 199 | (sizet) sizeof (char), |
| 200 | (sizet) LENGTH (name), |
| 201 | port); |
| 202 | #endif |
| 203 | fprintf_filtered (stream, " #X%s>", paddr_nz (svalue)); |
| 204 | break; |
| 205 | } |
| 206 | case scm_tcs_cons_imcar: |
| 207 | case scm_tcs_cons_nimcar: |
| 208 | fputs_filtered ("(", stream); |
| 209 | scm_scmlist_print (svalue, stream, format, |
| 210 | deref_ref, recurse + 1, pretty); |
| 211 | fputs_filtered (")", stream); |
| 212 | break; |
| 213 | case scm_tcs_closures: |
| 214 | fputs_filtered ("#<CLOSURE ", stream); |
| 215 | scm_scmlist_print (SCM_CODE (svalue), stream, format, |
| 216 | deref_ref, recurse + 1, pretty); |
| 217 | fputs_filtered (">", stream); |
| 218 | break; |
| 219 | case scm_tc7_string: |
| 220 | { |
| 221 | int len = SCM_LENGTH (svalue); |
| 222 | CORE_ADDR addr = (CORE_ADDR) SCM_CDR (svalue); |
| 223 | int i; |
| 224 | int done = 0; |
| 225 | int buf_size; |
| 226 | char buffer[64]; |
| 227 | int truncate = print_max && len > (int) print_max; |
| 228 | if (truncate) |
| 229 | len = print_max; |
| 230 | fputs_filtered ("\"", stream); |
| 231 | for (; done < len; done += buf_size) |
| 232 | { |
| 233 | buf_size = min (len - done, 64); |
| 234 | read_memory (addr + done, buffer, buf_size); |
| 235 | |
| 236 | for (i = 0; i < buf_size; ++i) |
| 237 | switch (buffer[i]) |
| 238 | { |
| 239 | case '\"': |
| 240 | case '\\': |
| 241 | fputs_filtered ("\\", stream); |
| 242 | default: |
| 243 | fprintf_filtered (stream, "%c", buffer[i]); |
| 244 | } |
| 245 | } |
| 246 | fputs_filtered (truncate ? "...\"" : "\"", stream); |
| 247 | break; |
| 248 | } |
| 249 | break; |
| 250 | case scm_tcs_symbols: |
| 251 | { |
| 252 | int len = SCM_LENGTH (svalue); |
| 253 | |
| 254 | char *str = (char *) alloca (len); |
| 255 | read_memory (SCM_CDR (svalue), str, len + 1); |
| 256 | /* Should handle weird characters FIXME */ |
| 257 | str[len] = '\0'; |
| 258 | fputs_filtered (str, stream); |
| 259 | break; |
| 260 | } |
| 261 | case scm_tc7_vector: |
| 262 | { |
| 263 | int len = SCM_LENGTH (svalue); |
| 264 | int i; |
| 265 | LONGEST elements = SCM_CDR (svalue); |
| 266 | fputs_filtered ("#(", stream); |
| 267 | for (i = 0; i < len; ++i) |
| 268 | { |
| 269 | if (i > 0) |
| 270 | fputs_filtered (" ", stream); |
| 271 | scm_scmval_print (scm_get_field (elements, i), stream, format, |
| 272 | deref_ref, recurse + 1, pretty); |
| 273 | } |
| 274 | fputs_filtered (")", stream); |
| 275 | } |
| 276 | break; |
| 277 | #if 0 |
| 278 | case tc7_lvector: |
| 279 | { |
| 280 | SCM result; |
| 281 | SCM hook; |
| 282 | hook = scm_get_lvector_hook (exp, LV_PRINT_FN); |
| 283 | if (hook == BOOL_F) |
| 284 | { |
| 285 | scm_puts ("#<locked-vector ", port); |
| 286 | scm_intprint (CDR (exp), 16, port); |
| 287 | scm_puts (">", port); |
| 288 | } |
| 289 | else |
| 290 | { |
| 291 | result |
| 292 | = scm_apply (hook, |
| 293 | scm_listify (exp, port, (writing ? BOOL_T : BOOL_F), |
| 294 | SCM_UNDEFINED), |
| 295 | EOL); |
| 296 | if (result == BOOL_F) |
| 297 | goto punk; |
| 298 | } |
| 299 | break; |
| 300 | } |
| 301 | break; |
| 302 | case tc7_bvect: |
| 303 | case tc7_ivect: |
| 304 | case tc7_uvect: |
| 305 | case tc7_fvect: |
| 306 | case tc7_dvect: |
| 307 | case tc7_cvect: |
| 308 | scm_raprin1 (exp, port, writing); |
| 309 | break; |
| 310 | #endif |
| 311 | case scm_tcs_subrs: |
| 312 | { |
| 313 | int index = SCM_CAR (svalue) >> 8; |
| 314 | #if 1 |
| 315 | char str[20]; |
| 316 | sprintf (str, "#%d", index); |
| 317 | #else |
| 318 | char *str = index ? SCM_CHARS (scm_heap_org + index) : ""; |
| 319 | #define SCM_CHARS(x) ((char *)(SCM_CDR(x))) |
| 320 | char *str = CHARS (SNAME (exp)); |
| 321 | #endif |
| 322 | fprintf_filtered (stream, "#<primitive-procedure %s>", |
| 323 | str); |
| 324 | } |
| 325 | break; |
| 326 | #if 0 |
| 327 | #ifdef CCLO |
| 328 | case tc7_cclo: |
| 329 | scm_puts ("#<compiled-closure ", port); |
| 330 | scm_iprin1 (CCLO_SUBR (exp), port, writing); |
| 331 | scm_putc ('>', port); |
| 332 | break; |
| 333 | #endif |
| 334 | case tc7_contin: |
| 335 | fprintf_filtered (stream, "#<continuation %d @ #X%lx >", |
| 336 | LENGTH (svalue), |
| 337 | (long) CHARS (svalue)); |
| 338 | break; |
| 339 | case tc7_port: |
| 340 | i = PTOBNUM (exp); |
| 341 | if (i < scm_numptob && scm_ptobs[i].print && (scm_ptobs[i].print) (exp, port, writing)) |
| 342 | break; |
| 343 | goto punk; |
| 344 | case tc7_smob: |
| 345 | i = SMOBNUM (exp); |
| 346 | if (i < scm_numsmob && scm_smobs[i].print |
| 347 | && (scm_smobs[i].print) (exp, port, writing)) |
| 348 | break; |
| 349 | goto punk; |
| 350 | #endif |
| 351 | default: |
| 352 | #if 0 |
| 353 | punk: |
| 354 | #endif |
| 355 | scm_ipruk ("type", svalue, stream); |
| 356 | } |
| 357 | break; |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | int |
| 362 | scm_val_print (struct type *type, char *valaddr, int embedded_offset, |
| 363 | CORE_ADDR address, struct ui_file *stream, int format, |
| 364 | int deref_ref, int recurse, enum val_prettyprint pretty) |
| 365 | { |
| 366 | if (is_scmvalue_type (type)) |
| 367 | { |
| 368 | LONGEST svalue = extract_signed_integer (valaddr, TYPE_LENGTH (type)); |
| 369 | if (scm_inferior_print (svalue, stream, format, |
| 370 | deref_ref, recurse, pretty) >= 0) |
| 371 | { |
| 372 | } |
| 373 | else |
| 374 | { |
| 375 | scm_scmval_print (svalue, stream, format, |
| 376 | deref_ref, recurse, pretty); |
| 377 | } |
| 378 | |
| 379 | gdb_flush (stream); |
| 380 | return (0); |
| 381 | } |
| 382 | else |
| 383 | { |
| 384 | return c_val_print (type, valaddr, 0, address, stream, format, |
| 385 | deref_ref, recurse, pretty); |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | int |
| 390 | scm_value_print (struct value *val, struct ui_file *stream, int format, |
| 391 | enum val_prettyprint pretty) |
| 392 | { |
| 393 | return (val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), 0, |
| 394 | VALUE_ADDRESS (val), stream, format, 1, 0, pretty)); |
| 395 | } |