mono/metadata/debug-helpers.c

   1 /*
   2  * console-io.c: ConsoleDriver internal calls
   3  *
   4  * Author:
   5  *      Mono Project (http://www.mono-project.com)
   6  *
   7  * Copyright (C) 2005-2008 Novell, Inc. (http://www.novell.com)
   8  */
   9
  10 #include <string.h>
  11 #include "mono/metadata/tokentype.h"
  12 #include "mono/metadata/opcodes.h"
  13 #include "mono/metadata/metadata-internals.h"
  14 #include "mono/metadata/class-internals.h"
  15 #include "mono/metadata/object-internals.h"
  16 #include "mono/metadata/mono-endian.h"
  17 #include "mono/metadata/debug-helpers.h"
  18 #include "mono/metadata/tabledefs.h"
  19 #include "mono/metadata/appdomain.h"
  20
  21 struct MonoMethodDesc {
  22         char *namespace;
  23         char *klass;
  24         char *name;
  25         char *args;
  26         guint num_args;
  27         gboolean include_namespace, klass_glob, name_glob;
  28 };
  29
  30 #ifdef HAVE_ARRAY_ELEM_INIT
  31 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
  32 #define MSGSTRFIELD1(line) str##line
  33 static const struct msgstr_t {
  34 #define WRAPPER(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
  35 #include "wrapper-types.h"
  36 #undef WRAPPER
  37 } opstr = {
  38 #define WRAPPER(a,b) b,
  39 #include "wrapper-types.h"
  40 #undef WRAPPER
  41 };
  42 static const gint16 opidx [] = {
  43 #define WRAPPER(a,b) [MONO_WRAPPER_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
  44 #include "wrapper-types.h"
  45 #undef WRAPPER
  46 };
  47
  48 static const char*
  49 wrapper_type_to_str (guint32 wrapper_type)
  50 {
  51         g_assert (wrapper_type < MONO_WRAPPER_NUM);
  52
  53         return (const char*)&opstr + opidx [wrapper_type];
  54 }
  55
  56 #else
  57 #define WRAPPER(a,b) b,
  58 static const char* const
  59 wrapper_type_names [MONO_WRAPPER_NUM + 1] = {
  60 #include "wrapper-types.h"
  61         NULL
  62 };
  63
  64 static const char*
  65 wrapper_type_to_str (guint32 wrapper_type)
  66 {
  67         g_assert (wrapper_type < MONO_WRAPPER_NUM);
  68
  69         return wrapper_type_names [wrapper_type];
  70 }
  71
  72 #endif
  73
  74 static void
  75 append_class_name (GString *res, MonoClass *class, gboolean include_namespace)
  76 {
  77         if (!class) {
  78                 g_string_append (res, "Unknown");
  79                 return;
  80         }
  81         if (class->nested_in) {
  82                 append_class_name (res, class->nested_in, include_namespace);
  83                 g_string_append_c (res, '/');
  84         }
  85         if (include_namespace && *(class->name_space))
  86                 g_string_append_printf (res, "%s.", class->name_space);
  87         g_string_append_printf (res, "%s", class->name);
  88 }
  89
  90 static MonoClass*
  91 find_system_class (const char *name)
  92 {
  93         if (!strcmp (name, "void"))
  94                 return mono_defaults.void_class;
  95         else if (!strcmp (name, "char")) return mono_defaults.char_class;
  96         else if (!strcmp (name, "bool")) return mono_defaults.boolean_class;
  97         else if (!strcmp (name, "byte")) return mono_defaults.byte_class;
  98         else if (!strcmp (name, "sbyte")) return mono_defaults.sbyte_class;
  99         else if (!strcmp (name, "uint16")) return mono_defaults.uint16_class;
 100         else if (!strcmp (name, "int16")) return mono_defaults.int16_class;
 101         else if (!strcmp (name, "uint")) return mono_defaults.uint32_class;
 102         else if (!strcmp (name, "int")) return mono_defaults.int32_class;
 103         else if (!strcmp (name, "ulong")) return mono_defaults.uint64_class;
 104         else if (!strcmp (name, "long")) return mono_defaults.int64_class;
 105         else if (!strcmp (name, "uintptr")) return mono_defaults.uint_class;
 106         else if (!strcmp (name, "intptr")) return mono_defaults.int_class;
 107         else if (!strcmp (name, "single")) return mono_defaults.single_class;
 108         else if (!strcmp (name, "double")) return mono_defaults.double_class;
 109         else if (!strcmp (name, "string")) return mono_defaults.string_class;
 110         else if (!strcmp (name, "object")) return mono_defaults.object_class;
 111         else
 112                 return NULL;
 113 }
 114
 115 void
 116 mono_type_get_desc (GString *res, MonoType *type, gboolean include_namespace)
 117 {
 118         int i;
 119
 120         switch (type->type) {
 121         case MONO_TYPE_VOID:
 122                 g_string_append (res, "void"); break;
 123         case MONO_TYPE_CHAR:
 124                 g_string_append (res, "char"); break;
 125         case MONO_TYPE_BOOLEAN:
 126                 g_string_append (res, "bool"); break;
 127         case MONO_TYPE_U1:
 128                 g_string_append (res, "byte"); break;
 129         case MONO_TYPE_I1:
 130                 g_string_append (res, "sbyte"); break;
 131         case MONO_TYPE_U2:
 132                 g_string_append (res, "uint16"); break;
 133         case MONO_TYPE_I2:
 134                 g_string_append (res, "int16"); break;
 135         case MONO_TYPE_U4:
 136                 g_string_append (res, "uint"); break;
 137         case MONO_TYPE_I4:
 138                 g_string_append (res, "int"); break;
 139         case MONO_TYPE_U8:
 140                 g_string_append (res, "ulong"); break;
 141         case MONO_TYPE_I8:
 142                 g_string_append (res, "long"); break;
 143         case MONO_TYPE_FNPTR: /* who cares for the exact signature? */
 144                 g_string_append (res, "*()"); break;
 145         case MONO_TYPE_U:
 146                 g_string_append (res, "uintptr"); break;
 147         case MONO_TYPE_I:
 148                 g_string_append (res, "intptr"); break;
 149         case MONO_TYPE_R4:
 150                 g_string_append (res, "single"); break;
 151         case MONO_TYPE_R8:
 152                 g_string_append (res, "double"); break;
 153         case MONO_TYPE_STRING:
 154                 g_string_append (res, "string"); break;
 155         case MONO_TYPE_OBJECT:
 156                 g_string_append (res, "object"); break;
 157         case MONO_TYPE_PTR:
 158                 mono_type_get_desc (res, type->data.type, include_namespace);
 159                 g_string_append_c (res, '*');
 160                 break;
 161         case MONO_TYPE_ARRAY:
 162                 mono_type_get_desc (res, &type->data.array->eklass->byval_arg, include_namespace);
 163                 g_string_append_printf (res, "[%d]", type->data.array->rank);
 164                 break;
 165         case MONO_TYPE_SZARRAY:
 166                 mono_type_get_desc (res, &type->data.klass->byval_arg, include_namespace);
 167                 g_string_append (res, "[]");
 168                 break;
 169         case MONO_TYPE_CLASS:
 170         case MONO_TYPE_VALUETYPE:
 171                 append_class_name (res, type->data.klass, include_namespace);
 172                 break;
 173         case MONO_TYPE_GENERICINST: {
 174                 MonoGenericContext *context;
 175
 176                 mono_type_get_desc (res, &type->data.generic_class->container_class->byval_arg, include_namespace);
 177                 g_string_append (res, "<");
 178                 context = &type->data.generic_class->context;
 179                 if (context->class_inst) {
 180                         for (i = 0; i < context->class_inst->type_argc; ++i) {
 181                                 if (i > 0)
 182                                         g_string_append (res, ", ");
 183                                 mono_type_get_desc (res, context->class_inst->type_argv [i], include_namespace);
 184                         }
 185                 }
 186                 if (context->method_inst) {
 187                         if (context->class_inst)
 188                                         g_string_append (res, "; ");
 189                         for (i = 0; i < context->method_inst->type_argc; ++i) {
 190                                 if (i > 0)
 191                                         g_string_append (res, ", ");
 192                                 mono_type_get_desc (res, context->method_inst->type_argv [i], include_namespace);
 193                         }
 194                 }
 195                 g_string_append (res, ">");
 196                 break;
 197         }
 198         case MONO_TYPE_VAR:
 199         case MONO_TYPE_MVAR:
 200                 if (type->data.generic_param) {
 201                         MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
 202                         if (info)
 203                                 g_string_append (res, info->name);
 204                         else
 205                                 g_string_append_printf (res, "%s%d", type->type == MONO_TYPE_VAR ? "!" : "!!", mono_generic_param_num (type->data.generic_param));
 206                 } else {
 207                         g_string_append (res, "<unknown>");
 208                 }
 209                 break;
 210         case MONO_TYPE_TYPEDBYREF:
 211                 g_string_append (res, "typedbyref");
 212                 break;
 213         default:
 214                 break;
 215         }
 216         if (type->byref)
 217                 g_string_append_c (res, '&');
 218 }
 219
 220 char*
 221 mono_type_full_name (MonoType *type)
 222 {
 223         GString *str;
 224
 225         str = g_string_new ("");
 226         mono_type_get_desc (str, type, TRUE);
 227         return g_string_free (str, FALSE);
 228 }
 229
 230 char*
 231 mono_signature_get_desc (MonoMethodSignature *sig, gboolean include_namespace)
 232 {
 233         int i;
 234         char *result;
 235         GString *res;
 236
 237         if (!sig)
 238                 return g_strdup ("<invalid signature>");
 239
 240         res = g_string_new ("");
 241
 242         for (i = 0; i < sig->param_count; ++i) {
 243                 if (i > 0)
 244                         g_string_append_c (res, ',');
 245                 mono_type_get_desc (res, sig->params [i], include_namespace);
 246         }
 247         result = res->str;
 248         g_string_free (res, FALSE);
 249         return result;
 250 }
 251
 252 static void
 253 ginst_get_desc (GString *str, MonoGenericInst *ginst)
 254 {
 255         int i;
 256
 257         for (i = 0; i < ginst->type_argc; ++i) {
 258                 if (i > 0)
 259                         g_string_append (str, ", ");
 260                 mono_type_get_desc (str, ginst->type_argv [i], TRUE);
 261         }
 262 }
 263
 264 char*
 265 mono_context_get_desc (MonoGenericContext *context)
 266 {
 267         GString *str;
 268         char *res;
 269
 270         str = g_string_new ("");
 271         g_string_append (str, "<");
 272
 273         if (context->class_inst)
 274                 ginst_get_desc (str, context->class_inst);
 275         if (context->method_inst) {
 276                 if (context->class_inst)
 277                         g_string_append (str, "; ");
 278                 ginst_get_desc (str, context->method_inst);
 279         }
 280
 281         g_string_append (str, ">");
 282         res = g_strdup (str->str);
 283         g_string_free (str, TRUE);
 284         return res;
 285 }
 286
 287 /**
 288  * mono_method_desc_new:
 289  * @name: the method name.
 290  * @include_namespace: whether the name includes a namespace or not.
 291  *
 292  * Creates a method description for @name, which conforms to the following
 293  * specification:
 294  *
 295  * [namespace.]classname:methodname[(args...)]
 296  *
 297  * in all the loaded assemblies.
 298  *
 299  * Both classname and methodname can contain '*' which matches anything.
 300  *
 301  * Returns: a parsed representation of the method description.
 302  */
 303 MonoMethodDesc*
 304 mono_method_desc_new (const char *name, gboolean include_namespace)
 305 {
 306         MonoMethodDesc *result;
 307         char *class_name, *class_nspace, *method_name, *use_args, *end;
 308         int use_namespace;
 309
 310         class_nspace = g_strdup (name);
 311         use_args = strchr (class_nspace, '(');
 312         if (use_args) {
 313                 /* Allow a ' ' between the method name and the signature */
 314                 if (use_args > class_nspace && use_args [-1] == ' ')
 315                         use_args [-1] = 0;
 316                 *use_args++ = 0;
 317                 end = strchr (use_args, ')');
 318                 if (!end) {
 319                         g_free (class_nspace);
 320                         return NULL;
 321                 }
 322                 *end = 0;
 323         }
 324         method_name = strrchr (class_nspace, ':');
 325         if (!method_name) {
 326                 g_free (class_nspace);
 327                 return NULL;
 328         }
 329         *method_name++ = 0;
 330         /* allow two :: to separate the method name */
 331         if (*method_name == ':')
 332                 method_name++;
 333         class_name = strrchr (class_nspace, '.');
 334         if (class_name) {
 335                 *class_name++ = 0;
 336                 use_namespace = 1;
 337         } else {
 338                 class_name = class_nspace;
 339                 use_namespace = 0;
 340         }
 341         result = g_new0 (MonoMethodDesc, 1);
 342         result->include_namespace = include_namespace;
 343         result->name = method_name;
 344         result->klass = class_name;
 345         result->namespace = use_namespace? class_nspace: NULL;
 346         result->args = use_args? use_args: NULL;
 347         if (strstr (result->name, "*"))
 348                 result->name_glob = TRUE;
 349         if (strstr (result->klass, "*"))
 350                 result->klass_glob = TRUE;
 351         if (use_args) {
 352                 end = use_args;
 353                 if (*end)
 354                         result->num_args = 1;
 355                 while (*end) {
 356                         if (*end == ',')
 357                                 result->num_args++;
 358                         ++end;
 359                 }
 360         }
 361
 362         return result;
 363 }
 364
 365 MonoMethodDesc*
 366 mono_method_desc_from_method (MonoMethod *method)
 367 {
 368         MonoMethodDesc *result;
 369
 370         result = g_new0 (MonoMethodDesc, 1);
 371         result->include_namespace = TRUE;
 372         result->name = g_strdup (method->name);
 373         result->klass = g_strdup (method->klass->name);
 374         result->namespace = g_strdup (method->klass->name_space);
 375
 376         return result;
 377 }
 378
 379 /**
 380  * mono_method_desc_free:
 381  * @desc: method description to be released
 382  *
 383  * Releases the MonoMethodDesc object @desc.
 384  */
 385 void
 386 mono_method_desc_free (MonoMethodDesc *desc)
 387 {
 388         if (desc->namespace)
 389                 g_free (desc->namespace);
 390         else if (desc->klass)
 391                 g_free (desc->klass);
 392         g_free (desc);
 393 }
 394
 395 /*
 396  * namespace and class are supposed to match already if this function is used.
 397  */
 398 gboolean
 399 mono_method_desc_match (MonoMethodDesc *desc, MonoMethod *method)
 400 {
 401         char *sig;
 402         gboolean name_match;
 403
 404         name_match = strcmp (desc->name, method->name) == 0;
 405 #ifndef _EGLIB_MAJOR
 406         if (!name_match && desc->name_glob)
 407                 name_match = g_pattern_match_simple (desc->name, method->name);
 408 #endif
 409         if (!name_match)
 410                 return FALSE;
 411         if (!desc->args)
 412                 return TRUE;
 413         if (desc->num_args != mono_method_signature (method)->param_count)
 414                 return FALSE;
 415         sig = mono_signature_get_desc (mono_method_signature (method), desc->include_namespace);
 416         if (strcmp (sig, desc->args)) {
 417                 g_free (sig);
 418                 return FALSE;
 419         }
 420         g_free (sig);
 421         return TRUE;
 422 }
 423
 424 static const char *
 425 my_strrchr (const char *str, char ch, int *len)
 426 {
 427         int pos;
 428
 429         for (pos = (*len)-1; pos >= 0; pos--) {
 430                 if (str [pos] != ch)
 431                         continue;
 432
 433                 *len = pos;
 434                 return str + pos;
 435         }
 436
 437         return NULL;
 438 }
 439
 440 static gboolean
 441 match_class (MonoMethodDesc *desc, int pos, MonoClass *klass)
 442 {
 443         const char *p;
 444
 445         if (desc->klass_glob && !strcmp (desc->klass, "*"))
 446                 return TRUE;
 447 #ifndef _EGLIB_MAJOR
 448         if (desc->klass_glob && g_pattern_match_simple (desc->klass, klass->name))
 449                 return TRUE;
 450 #endif
 451         p = my_strrchr (desc->klass, '/', &pos);
 452         if (!p) {
 453                 if (strncmp (desc->klass, klass->name, pos))
 454                         return FALSE;
 455                 if (desc->namespace && strcmp (desc->namespace, klass->name_space))
 456                         return FALSE;
 457                 return TRUE;
 458         }
 459
 460         if (strcmp (p+1, klass->name))
 461                 return FALSE;
 462         if (!klass->nested_in)
 463                 return FALSE;
 464
 465         return match_class (desc, pos, klass->nested_in);
 466 }
 467
 468 gboolean
 469 mono_method_desc_full_match (MonoMethodDesc *desc, MonoMethod *method)
 470 {
 471         if (!match_class (desc, strlen (desc->klass), method->klass))
 472                 return FALSE;
 473
 474         return mono_method_desc_match (desc, method);
 475 }
 476
 477 MonoMethod*
 478 mono_method_desc_search_in_class (MonoMethodDesc *desc, MonoClass *klass)
 479 {
 480         MonoMethod* m;
 481         gpointer iter = NULL;
 482
 483         while ((m = mono_class_get_methods (klass, &iter)))
 484                 if (mono_method_desc_match (desc, m))
 485                         return m;
 486         return NULL;
 487 }
 488
 489 MonoMethod*
 490 mono_method_desc_search_in_image (MonoMethodDesc *desc, MonoImage *image)
 491 {
 492         MonoClass *klass;
 493         const MonoTableInfo *tdef;
 494         const MonoTableInfo *methods;
 495         MonoMethod *method;
 496         int i;
 497
 498         /* Handle short names for system classes */
 499         if (!desc->namespace && image == mono_defaults.corlib) {
 500                 klass = find_system_class (desc->klass);
 501                 if (klass)
 502                         return mono_method_desc_search_in_class (desc, klass);
 503         }
 504
 505         if (desc->namespace && desc->klass) {
 506                 klass = mono_class_from_name (image, desc->namespace, desc->klass);
 507                 if (!klass)
 508                         return NULL;
 509                 return mono_method_desc_search_in_class (desc, klass);
 510         }
 511
 512         tdef = mono_image_get_table_info (image, MONO_TABLE_TYPEDEF);
 513         methods = mono_image_get_table_info (image, MONO_TABLE_METHOD);
 514         for (i = 0; i < mono_table_info_get_rows (methods); ++i) {
 515                 guint32 token = mono_metadata_decode_row_col (methods, i, MONO_METHOD_NAME);
 516                 const char *n = mono_metadata_string_heap (image, token);
 517
 518                 if (strcmp (n, desc->name))
 519                         continue;
 520                 method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
 521                 if (mono_method_desc_full_match (desc, method))
 522                         return method;
 523         }
 524         return NULL;
 525 }
 526
 527 static const unsigned char*
 528 dis_one (GString *str, MonoDisHelper *dh, MonoMethod *method, const unsigned char *ip, const unsigned char *end)
 529 {
 530         MonoMethodHeader *header = mono_method_get_header (method);
 531         const MonoOpcode *opcode;
 532         guint32 label, token;
 533         gint32 sval;
 534         int i;
 535         char *tmp;
 536         const unsigned char* il_code = mono_method_header_get_code (header, NULL, NULL);
 537
 538         label = ip - il_code;
 539         if (dh->indenter) {
 540                 tmp = dh->indenter (dh, method, label);
 541                 g_string_append (str, tmp);
 542                 g_free (tmp);
 543         }
 544         if (dh->label_format)
 545                 g_string_append_printf (str, dh->label_format, label);
 546
 547         i = mono_opcode_value (&ip, end);
 548         ip++;
 549         opcode = &mono_opcodes [i];
 550         g_string_append_printf (str, "%-10s", mono_opcode_name (i));
 551
 552         switch (opcode->argument) {
 553         case MonoInlineNone:
 554                 break;
 555         case MonoInlineType:
 556         case MonoInlineField:
 557         case MonoInlineMethod:
 558         case MonoInlineTok:
 559         case MonoInlineSig:
 560                 token = read32 (ip);
 561                 if (dh->tokener) {
 562                         tmp = dh->tokener (dh, method, token);
 563                         g_string_append (str, tmp);
 564                         g_free (tmp);
 565                 } else {
 566                         g_string_append_printf (str, "0x%08x", token);
 567                 }
 568                 ip += 4;
 569                 break;
 570         case MonoInlineString: {
 571                 const char *blob;
 572                 char *s;
 573                 size_t len2;
 574                 char *blob2 = NULL;
 575
 576                 if (!method->klass->image->dynamic) {
 577                         token = read32 (ip);
 578                         blob = mono_metadata_user_string (method->klass->image, mono_metadata_token_index (token));
 579
 580                         len2 = mono_metadata_decode_blob_size (blob, &blob);
 581                         len2 >>= 1;
 582
 583 #ifdef NO_UNALIGNED_ACCESS
 584                         /* The blob might not be 2 byte aligned */
 585                         blob2 = g_malloc ((len2 * 2) + 1);
 586                         memcpy (blob2, blob, len2 * 2);
 587 #else
 588                         blob2 = (char*)blob;
 589 #endif
 590
 591 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
 592                         {
 593                                 guint16 *buf = g_new (guint16, len2 + 1);
 594                                 int i;
 595
 596                                 for (i = 0; i < len2; ++i)
 597                                         buf [i] = GUINT16_FROM_LE (((guint16*)blob2) [i]);
 598                                 s = g_utf16_to_utf8 (buf, len2, NULL, NULL, NULL);
 599                                 g_free (buf);
 600                         }
 601 #else
 602                                 s = g_utf16_to_utf8 ((gunichar2*)blob2, len2, NULL, NULL, NULL);
 603 #endif
 604
 605                         g_string_append_printf (str, "\"%s\"", s);
 606                         g_free (s);
 607                         if (blob != blob2)
 608                                 g_free (blob2);
 609                 }
 610                 ip += 4;
 611                 break;
 612         }
 613         case MonoInlineVar:
 614                 g_string_append_printf (str, "%d", read16 (ip));
 615                 ip += 2;
 616                 break;
 617         case MonoShortInlineVar:
 618                 g_string_append_printf (str, "%d", (*ip));
 619                 ip ++;
 620                 break;
 621         case MonoInlineBrTarget:
 622                 sval = read32 (ip);
 623                 ip += 4;
 624                 if (dh->label_target)
 625                         g_string_append_printf (str, dh->label_target, ip + sval - il_code);
 626                 else
 627                         g_string_append_printf (str, "%d", sval);
 628                 break;
 629         case MonoShortInlineBrTarget:
 630                 sval = *(const signed char*)ip;
 631                 ip ++;
 632                 if (dh->label_target)
 633                         g_string_append_printf (str, dh->label_target, ip + sval - il_code);
 634                 else
 635                         g_string_append_printf (str, "%d", sval);
 636                 break;
 637         case MonoInlineSwitch: {
 638                 const unsigned char *end;
 639                 sval = read32 (ip);
 640                 ip += 4;
 641                 end = ip + sval * 4;
 642                 g_string_append_c (str, '(');
 643                 for (i = 0; i < sval; ++i) {
 644                         if (i > 0)
 645                                 g_string_append (str, ", ");
 646                         label = read32 (ip);
 647                         if (dh->label_target)
 648                                 g_string_append_printf (str, dh->label_target, end + label - il_code);
 649                         else
 650                                 g_string_append_printf (str, "%d", label);
 651                         ip += 4;
 652                 }
 653                 g_string_append_c (str, ')');
 654                 break;
 655         }
 656         case MonoInlineR: {
 657                 double r;
 658                 readr8 (ip, &r);
 659                 g_string_append_printf (str, "%g", r);
 660                 ip += 8;
 661                 break;
 662         }
 663         case MonoShortInlineR: {
 664                 float r;
 665                 readr4 (ip, &r);
 666                 g_string_append_printf (str, "%g", r);
 667                 ip += 4;
 668                 break;
 669         }
 670         case MonoInlineI:
 671                 g_string_append_printf (str, "%d", (gint32)read32 (ip));
 672                 ip += 4;
 673                 break;
 674         case MonoShortInlineI:
 675                 g_string_append_printf (str, "%d", *(const signed char*)ip);
 676                 ip ++;
 677                 break;
 678         case MonoInlineI8:
 679                 ip += 8;
 680                 break;
 681         default:
 682                 g_assert_not_reached ();
 683         }
 684         if (dh->newline)
 685                 g_string_append (str, dh->newline);
 686
 687         mono_metadata_free_mh (header);
 688         return ip;
 689 }
 690
 691 static MonoDisHelper
 692 default_dh = {
 693         "\n",
 694         "IL_%04x: ", /* label_format */
 695         "IL_%04x", /* label_target */
 696         NULL, /* indenter */
 697         NULL, /* tokener */
 698         NULL  /* user data */
 699 };
 700
 701 char*
 702 mono_disasm_code_one (MonoDisHelper *dh, MonoMethod *method, const guchar *ip, const guchar **endp)
 703 {
 704         char *result;
 705         GString *res = g_string_new ("");
 706
 707         if (!dh)
 708                 dh = &default_dh;
 709         /* set ip + 2 as the end: this is just a debugging method */
 710         ip = dis_one (res, dh, method, ip, ip + 2);
 711         if (endp)
 712                 *endp = ip;
 713
 714         result = res->str;
 715         g_string_free (res, FALSE);
 716         return result;
 717 }
 718
 719 char*
 720 mono_disasm_code (MonoDisHelper *dh, MonoMethod *method, const guchar *ip, const guchar* end)
 721 {
 722         char *result;
 723         GString *res = g_string_new ("");
 724
 725         if (!dh)
 726                 dh = &default_dh;
 727         while (ip < end) {
 728                 ip = dis_one (res, dh, method, ip, end);
 729         }
 730
 731         result = res->str;
 732         g_string_free (res, FALSE);
 733         return result;
 734 }
 735
 736 char *
 737 mono_field_full_name (MonoClassField *field)
 738 {
 739         char *res;
 740         const char *nspace = field->parent->name_space;
 741
 742         res = g_strdup_printf ("%s%s%s:%s", nspace, *nspace ? "." : "",
 743                                                    field->parent->name, mono_field_get_name (field));
 744
 745         return res;
 746 }
 747
 748 char *
 749 mono_method_full_name (MonoMethod *method, gboolean signature)
 750 {
 751         char *res;
 752         char wrapper [64];
 753         char *klass_desc = mono_type_full_name (&method->klass->byval_arg);
 754         char *inst_desc = NULL;
 755
 756         if (method->is_inflated && ((MonoMethodInflated*)method)->context.method_inst) {
 757                 GString *str = g_string_new ("");
 758                 g_string_append (str, "<");
 759                 ginst_get_desc (str, ((MonoMethodInflated*)method)->context.method_inst);
 760                 g_string_append (str, ">");
 761
 762                 inst_desc = str->str;
 763                 g_string_free (str, FALSE);
 764         } else if (method->is_generic) {
 765                 MonoGenericContainer *container = mono_method_get_generic_container (method);
 766
 767                 GString *str = g_string_new ("");
 768                 g_string_append (str, "<");
 769                 ginst_get_desc (str, container->context.method_inst);
 770                 g_string_append (str, ">");
 771
 772                 inst_desc = str->str;
 773                 g_string_free (str, FALSE);
 774         }
 775
 776         if (method->wrapper_type != MONO_WRAPPER_NONE)
 777                 sprintf (wrapper, "(wrapper %s) ", wrapper_type_to_str (method->wrapper_type));
 778         else
 779                 strcpy (wrapper, "");
 780
 781         if (signature) {
 782                 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
 783
 784                 if (method->wrapper_type != MONO_WRAPPER_NONE)
 785                         sprintf (wrapper, "(wrapper %s) ", wrapper_type_to_str (method->wrapper_type));
 786                 else
 787                         strcpy (wrapper, "");
 788                 res = g_strdup_printf ("%s%s:%s%s (%s)", wrapper, klass_desc,
 789                                                            method->name, inst_desc ? inst_desc : "", tmpsig);
 790                 g_free (tmpsig);
 791         } else {
 792                 res = g_strdup_printf ("%s%s:%s%s", wrapper, klass_desc,
 793                                                            method->name, inst_desc ? inst_desc : "");
 794         }
 795
 796         g_free (klass_desc);
 797         g_free (inst_desc);
 798
 799         return res;
 800 }
 801
 802 static const char*
 803 print_name_space (MonoClass *klass)
 804 {
 805         if (klass->nested_in) {
 806                 print_name_space (klass->nested_in);
 807                 g_print ("%s", klass->nested_in->name);
 808                 return "/";
 809         }
 810         if (klass->name_space [0]) {
 811                 g_print ("%s", klass->name_space);
 812                 return ".";
 813         }
 814         return "";
 815 }
 816
 817 /**
 818  * mono_object_describe:
 819  *
 820  * Prints to stdout a small description of the object @obj.
 821  * For use in a debugger.
 822  */
 823 void
 824 mono_object_describe (MonoObject *obj)
 825 {
 826         MonoClass* klass;
 827         const char* sep;
 828         if (!obj) {
 829                 g_print ("(null)\n");
 830                 return;
 831         }
 832         klass = mono_object_class (obj);
 833         if (klass == mono_defaults.string_class) {
 834                 char *utf8 = mono_string_to_utf8 ((MonoString*)obj);
 835                 if (strlen (utf8) > 60) {
 836                         utf8 [57] = '.';
 837                         utf8 [58] = '.';
 838                         utf8 [59] = '.';
 839                         utf8 [60] = 0;
 840                 }
 841                 g_print ("String at %p, length: %d, '%s'\n", obj, mono_string_length ((MonoString*) obj), utf8);
 842                 g_free (utf8);
 843         } else if (klass->rank) {
 844                 MonoArray *array = (MonoArray*)obj;
 845                 sep = print_name_space (klass);
 846                 g_print ("%s%s", sep, klass->name);
 847                 g_print (" at %p, rank: %d, length: %d\n", obj, klass->rank, (int)mono_array_length (array));
 848         } else {
 849                 sep = print_name_space (klass);
 850                 g_print ("%s%s", sep, klass->name);
 851                 g_print (" object at %p (klass: %p)\n", obj, klass);
 852         }
 853
 854 }
 855
 856 static void
 857 print_field_value (const char *field_ptr, MonoClassField *field, int type_offset)
 858 {
 859         MonoType *type;
 860         g_print ("At %p (ofs: %2d) %s: ", field_ptr, field->offset + type_offset, mono_field_get_name (field));
 861         type = mono_type_get_underlying_type (field->type);
 862
 863         switch (type->type) {
 864         case MONO_TYPE_I:
 865         case MONO_TYPE_U:
 866         case MONO_TYPE_PTR:
 867         case MONO_TYPE_FNPTR:
 868                 g_print ("%p\n", *(const void**)field_ptr);
 869                 break;
 870         case MONO_TYPE_STRING:
 871         case MONO_TYPE_SZARRAY:
 872         case MONO_TYPE_CLASS:
 873         case MONO_TYPE_OBJECT:
 874         case MONO_TYPE_ARRAY:
 875                 mono_object_describe (*(MonoObject**)field_ptr);
 876                 break;
 877         case MONO_TYPE_GENERICINST:
 878                 if (!mono_type_generic_inst_is_valuetype (type)) {
 879                         mono_object_describe (*(MonoObject**)field_ptr);
 880                         break;
 881                 } else {
 882                         /* fall through */
 883                 }
 884         case MONO_TYPE_VALUETYPE: {
 885                 MonoClass *k = mono_class_from_mono_type (type);
 886                 g_print ("%s ValueType (type: %p) at %p\n", k->name, k, field_ptr);
 887                 break;
 888         }
 889         case MONO_TYPE_I1:
 890                 g_print ("%d\n", *(gint8*)field_ptr);
 891                 break;
 892         case MONO_TYPE_U1:
 893                 g_print ("%d\n", *(guint8*)field_ptr);
 894                 break;
 895         case MONO_TYPE_I2:
 896                 g_print ("%d\n", *(gint16*)field_ptr);
 897                 break;
 898         case MONO_TYPE_U2:
 899                 g_print ("%d\n", *(guint16*)field_ptr);
 900                 break;
 901         case MONO_TYPE_I4:
 902                 g_print ("%d\n", *(gint32*)field_ptr);
 903                 break;
 904         case MONO_TYPE_U4:
 905                 g_print ("%u\n", *(guint32*)field_ptr);
 906                 break;
 907         case MONO_TYPE_I8:
 908                 g_print ("%lld\n", (long long int)*(gint64*)field_ptr);
 909                 break;
 910         case MONO_TYPE_U8:
 911                 g_print ("%llu\n", (long long unsigned int)*(guint64*)field_ptr);
 912                 break;
 913         case MONO_TYPE_R4:
 914                 g_print ("%f\n", *(gfloat*)field_ptr);
 915                 break;
 916         case MONO_TYPE_R8:
 917                 g_print ("%f\n", *(gdouble*)field_ptr);
 918                 break;
 919         case MONO_TYPE_BOOLEAN:
 920                 g_print ("%s (%d)\n", *(guint8*)field_ptr? "True": "False", *(guint8*)field_ptr);
 921                 break;
 922         case MONO_TYPE_CHAR:
 923                 g_print ("'%c' (%d 0x%04x)\n", *(guint16*)field_ptr, *(guint16*)field_ptr, *(guint16*)field_ptr);
 924                 break;
 925         default:
 926                 g_assert_not_reached ();
 927                 break;
 928         }
 929 }
 930
 931 static void
 932 objval_describe (MonoClass *class, const char *addr)
 933 {
 934         MonoClassField *field;
 935         MonoClass *p;
 936         const char *field_ptr;
 937         gssize type_offset = 0;
 938         if (class->valuetype)
 939                 type_offset = -sizeof (MonoObject);
 940
 941         for (p = class; p != NULL; p = p->parent) {
 942                 gpointer iter = NULL;
 943                 int printed_header = FALSE;
 944                 while ((field = mono_class_get_fields (p, &iter))) {
 945                         if (field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA))
 946                                 continue;
 947
 948                         if (p != class && !printed_header) {
 949                                 const char *sep;
 950                                 g_print ("In class ");
 951                                 sep = print_name_space (p);
 952                                 g_print ("%s%s:\n", sep, p->name);
 953                                 printed_header = TRUE;
 954                         }
 955                         field_ptr = (const char*)addr + field->offset + type_offset;
 956
 957                         print_field_value (field_ptr, field, type_offset);
 958                 }
 959         }
 960 }
 961
 962 /**
 963  * mono_object_describe_fields:
 964  *
 965  * Prints to stdout a small description of each field of the object @obj.
 966  * For use in a debugger.
 967  */
 968 void
 969 mono_object_describe_fields (MonoObject *obj)
 970 {
 971         MonoClass *class = mono_object_class (obj);
 972         objval_describe (class, (char*)obj);
 973 }
 974
 975 /**
 976  * mono_value_describe_fields:
 977  *
 978  * Prints to stdout a small description of each field of the value type
 979  * stored at @addr of type @klass.
 980  * For use in a debugger.
 981  */
 982 void
 983 mono_value_describe_fields (MonoClass* klass, const char* addr)
 984 {
 985         objval_describe (klass, addr);
 986 }
 987
 988 /**
 989  * mono_class_describe_statics:
 990  *
 991  * Prints to stdout a small description of each static field of the type @klass
 992  * in the current application domain.
 993  * For use in a debugger.
 994  */
 995 void
 996 mono_class_describe_statics (MonoClass* klass)
 997 {
 998         MonoClassField *field;
 999         MonoClass *p;
1000         const char *field_ptr;
1001         MonoVTable *vtable = mono_class_vtable_full (mono_domain_get (), klass, FALSE);
1002         const char *addr;
1003
1004         if (!vtable)
1005                 return;
1006         if (!(addr = vtable->data))
1007                 return;
1008
1009         for (p = klass; p != NULL; p = p->parent) {
1010                 gpointer iter = NULL;
1011                 while ((field = mono_class_get_fields (p, &iter))) {
1012                         if (field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1013                                 continue;
1014                         if (!(field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA)))
1015                                 continue;
1016
1017                         field_ptr = (const char*)addr + field->offset;
1018
1019                         print_field_value (field_ptr, field, 0);
1020                 }
1021         }
1022 }
1023