mono/mini/interp/interp.c

   1 /*
   2  * PLEASE NOTE: This is a research prototype.
   3  *
   4  *
   5  * interp.c: Interpreter for CIL byte codes
   6  *
   7  * Authors:
   8  *   Paolo Molaro (lupus@ximian.com)
   9  *   Miguel de Icaza (miguel@ximian.com)
  10  *   Dietmar Maurer (dietmar@ximian.com)
  11  *
  12  * (C) 2001, 2002 Ximian, Inc.
  13  */
  14 #ifndef __USE_ISOC99
  15 #define __USE_ISOC99
  16 #endif
  17 #include "config.h"
  18 #include <stdio.h>
  19 #include <string.h>
  20 #include <stdlib.h>
  21 #include <glib.h>
  22 #include <setjmp.h>
  23 #include <signal.h>
  24 #include <math.h>
  25 #include <locale.h>
  26
  27 #include <mono/utils/gc_wrapper.h>
  28
  29 #ifdef HAVE_ALLOCA_H
  30 #   include <alloca.h>
  31 #else
  32 #   ifdef __CYGWIN__
  33 #      define alloca __builtin_alloca
  34 #   endif
  35 #endif
  36
  37 /* trim excessive headers */
  38 #include <mono/metadata/image.h>
  39 #include <mono/metadata/assembly.h>
  40 #include <mono/metadata/cil-coff.h>
  41 #include <mono/metadata/mono-endian.h>
  42 #include <mono/metadata/tabledefs.h>
  43 #include <mono/metadata/tokentype.h>
  44 #include <mono/metadata/loader.h>
  45 #include <mono/metadata/threads.h>
  46 #include <mono/metadata/threadpool.h>
  47 #include <mono/metadata/profiler-private.h>
  48 #include <mono/metadata/appdomain.h>
  49 #include <mono/metadata/reflection.h>
  50 #include <mono/metadata/reflection-internals.h>
  51 #include <mono/metadata/exception.h>
  52 #include <mono/metadata/verify.h>
  53 #include <mono/metadata/opcodes.h>
  54 #include <mono/metadata/debug-helpers.h>
  55 #include <mono/metadata/mono-config.h>
  56 #include <mono/metadata/marshal.h>
  57 #include <mono/metadata/environment.h>
  58 #include <mono/metadata/mono-debug.h>
  59
  60 #include "interp.h"
  61 #include "interp-internals.h"
  62 #include "mintops.h"
  63 #include "hacks.h"
  64
  65 #include <mono/mini/mini.h>
  66 #include <mono/mini/jit-icalls.h>
  67
  68
  69 /* Mingw 2.1 doesnt need this any more, but leave it in for now for older versions */
  70 #ifdef _WIN32
  71 #define isnan _isnan
  72 #define finite _finite
  73 #endif
  74 #ifndef HAVE_FINITE
  75 #ifdef HAVE_ISFINITE
  76 #define finite isfinite
  77 #endif
  78 #endif
  79
  80 #define INIT_FRAME(frame,parent_frame,method_args,method_retval,domain,mono_method,error)       \
  81         do {    \
  82                 (frame)->parent = (parent_frame);       \
  83                 (frame)->stack_args = (method_args);    \
  84                 (frame)->retval = (method_retval);      \
  85                 (frame)->runtime_method = mono_interp_get_runtime_method ((domain), (mono_method), (error));    \
  86                 (frame)->ex = NULL;     \
  87                 (frame)->ip = NULL;     \
  88                 (frame)->invoke_trap = 0;       \
  89         } while (0)
  90
  91 void ves_exec_method (MonoInvocation *frame);
  92
  93 static char* dump_stack (stackval *stack, stackval *sp);
  94 static char* dump_frame (MonoInvocation *inv);
  95 static MonoArray *get_trace_ips (MonoDomain *domain, MonoInvocation *top);
  96 static void ves_exec_method_with_context (MonoInvocation *frame, ThreadContext *context);
  97
  98 typedef void (*ICallMethod) (MonoInvocation *frame);
  99
 100 static guint32 die_on_exception = 0;
 101 static MonoNativeTlsKey thread_context_id;
 102
 103 static char* dump_args (MonoInvocation *inv);
 104
 105 #define DEBUG_INTERP 0
 106 #define COUNT_OPS 0
 107 #if DEBUG_INTERP
 108 int mono_interp_traceopt = 2;
 109 /* If true, then we output the opcodes as we interpret them */
 110 static int global_tracing = 2;
 111
 112 static int debug_indent_level = 0;
 113
 114 static int break_on_method = 0;
 115 static int nested_trace = 0;
 116 static GList *db_methods = NULL;
 117
 118 static void
 119 output_indent (void)
 120 {
 121         int h;
 122
 123         for (h = 0; h < debug_indent_level; h++)
 124                 g_print ("  ");
 125 }
 126
 127 static void
 128 db_match_method (gpointer data, gpointer user_data)
 129 {
 130         MonoMethod *m = (MonoMethod*)user_data;
 131         MonoMethodDesc *desc = data;
 132
 133         if (mono_method_desc_full_match (desc, m))
 134                 break_on_method = 1;
 135 }
 136
 137 static void debug_enter (MonoInvocation *frame, int *tracing)
 138 {
 139         if (db_methods) {
 140                 g_list_foreach (db_methods, db_match_method, (gpointer)frame->runtime_method->method);
 141                 if (break_on_method)
 142                         *tracing = nested_trace ? (global_tracing = 2, 3) : 2;
 143                 break_on_method = 0;
 144         }
 145         if (*tracing) {
 146                 MonoMethod *method = frame->runtime_method->method;
 147                 char *mn, *args = dump_args (frame);
 148                 debug_indent_level++;
 149                 output_indent ();
 150                 mn = mono_method_full_name (method, FALSE);
 151                 g_print ("(%p) Entering %s (", mono_thread_internal_current (), mn);
 152                 g_free (mn);
 153                 g_print  ("%s)\n", args);
 154                 g_free (args);
 155         }
 156         if (mono_profiler_events & MONO_PROFILE_ENTER_LEAVE)
 157                 mono_profiler_method_enter (frame->runtime_method->method);
 158 }
 159
 160
 161 #define DEBUG_LEAVE()   \
 162         if (tracing) {  \
 163                 char *mn, *args;        \
 164                 args = dump_retval (frame);     \
 165                 output_indent ();       \
 166                 mn = mono_method_full_name (frame->runtime_method->method, FALSE); \
 167                 g_print  ("(%p) Leaving %s", mono_thread_internal_current (),  mn);     \
 168                 g_free (mn); \
 169                 g_print  (" => %s\n", args);    \
 170                 g_free (args);  \
 171                 debug_indent_level--;   \
 172                 if (tracing == 3) global_tracing = 0; \
 173         }       \
 174         if (mono_profiler_events & MONO_PROFILE_ENTER_LEAVE)    \
 175                 mono_profiler_method_leave (frame->runtime_method->method);
 176
 177 #else
 178
 179 int mono_interp_traceopt = 0;
 180 static void debug_enter (MonoInvocation *frame, int *tracing)
 181 {
 182 }
 183 #define DEBUG_LEAVE()
 184
 185 #endif
 186
 187 static void
 188 interp_ex_handler (MonoException *ex) {
 189         MonoError error;
 190         ThreadContext *context = mono_native_tls_get_value (thread_context_id);
 191         char *stack_trace;
 192         if (context == NULL)
 193                 return;
 194         stack_trace = dump_frame (context->current_frame);
 195         ex->stack_trace = mono_string_new (mono_domain_get(), stack_trace);
 196         g_free (stack_trace);
 197         if (context->current_env == NULL || strcmp(ex->object.vtable->klass->name, "ExecutionEngineException") == 0) {
 198                 char *strace = mono_string_to_utf8_checked (ex->stack_trace, &error);
 199                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 200                 fprintf(stderr, "Nothing can catch this exception: ");
 201                 fprintf(stderr, "%s", ex->object.vtable->klass->name);
 202                 if (ex->message != NULL) {
 203                         char *m = mono_string_to_utf8_checked (ex->message, &error);
 204                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 205                         fprintf(stderr, ": %s", m);
 206                         g_free(m);
 207                 }
 208                 fprintf(stderr, "\n%s\n", strace);
 209                 g_free (strace);
 210                 if (ex->inner_ex != NULL) {
 211                         ex = (MonoException *)ex->inner_ex;
 212                         fprintf(stderr, "Inner exception: %s", ex->object.vtable->klass->name);
 213                         if (ex->message != NULL) {
 214                                 char *m = mono_string_to_utf8_checked (ex->message, &error);
 215                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 216                                 fprintf(stderr, ": %s", m);
 217                                 g_free(m);
 218                         }
 219                         strace = mono_string_to_utf8_checked (ex->stack_trace, &error);
 220                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 221                         fprintf(stderr, "\n");
 222                         fprintf(stderr, "%s\n", strace);
 223                         g_free (strace);
 224                 }
 225                 /* wait for other threads to also collapse */
 226                 // Sleep(1000); // TODO: proper sleep
 227                 exit(1);
 228         }
 229         context->env_frame->ex = ex;
 230         context->search_for_handler = 1;
 231         longjmp (*context->current_env, 1);
 232 }
 233
 234 static void
 235 ves_real_abort (int line, MonoMethod *mh,
 236                 const unsigned short *ip, stackval *stack, stackval *sp)
 237 {
 238         MonoError error;
 239         fprintf (stderr, "Execution aborted in method: %s::%s\n", mh->klass->name, mh->name);
 240         fprintf (stderr, "Line=%d IP=0x%04lx, Aborted execution\n", line,
 241                  ip-(const unsigned short *)mono_method_get_header_checked (mh, &error)->code);
 242                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 243         g_print ("0x%04x %02x\n",
 244                  ip-(const unsigned short *)mono_method_get_header_checked (mh, &error)->code, *ip);
 245         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 246         if (sp > stack)
 247                 printf ("\t[%ld] 0x%08x %0.5f\n", sp-stack, sp[-1].data.i, sp[-1].data.f);
 248 }
 249
 250 #define ves_abort() \
 251         do {\
 252                 ves_real_abort(__LINE__, frame->runtime_method->method, ip, frame->stack, sp); \
 253                 THROW_EX (mono_get_exception_execution_engine (NULL), ip); \
 254         } while (0);
 255
 256 static mono_mutex_t runtime_method_lookup_section;
 257
 258 RuntimeMethod*
 259 mono_interp_get_runtime_method (MonoDomain *domain, MonoMethod *method, MonoError *error)
 260 {
 261         RuntimeMethod *rtm;
 262         error_init (error);
 263
 264         mono_os_mutex_lock (&runtime_method_lookup_section);
 265         if ((rtm = mono_internal_hash_table_lookup (&domain->jit_code_hash, method))) {
 266                 mono_os_mutex_unlock (&runtime_method_lookup_section);
 267                 return rtm;
 268         }
 269         rtm = mono_mempool_alloc (domain->mp, sizeof (RuntimeMethod));
 270         memset (rtm, 0, sizeof (*rtm));
 271         rtm->method = method;
 272         rtm->param_count = mono_method_signature (method)->param_count;
 273         rtm->hasthis = mono_method_signature (method)->hasthis;
 274         mono_internal_hash_table_insert (&domain->jit_code_hash, method, rtm);
 275         mono_os_mutex_unlock (&runtime_method_lookup_section);
 276
 277         return rtm;
 278 }
 279
 280 gpointer
 281 mono_interp_create_trampoline (MonoDomain *domain, MonoMethod *method, MonoError *error)
 282 {
 283         if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 284                 method = mono_marshal_get_synchronized_wrapper (method);
 285         return mono_interp_get_runtime_method (domain, method, error);
 286 }
 287
 288 static inline RuntimeMethod*
 289 get_virtual_method (MonoDomain *domain, RuntimeMethod *runtime_method, MonoObject *obj)
 290 {
 291         MonoMethod *m = runtime_method->method;
 292         MonoError error;
 293
 294         if ((m->flags & METHOD_ATTRIBUTE_FINAL) || !(m->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
 295                 RuntimeMethod *ret = NULL;
 296                 if (mono_object_is_transparent_proxy (obj)) {
 297                         ret = mono_interp_get_runtime_method (domain, mono_marshal_get_remoting_invoke (m), &error);
 298                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 299                 } else if (m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) {
 300                         ret = mono_interp_get_runtime_method (domain, mono_marshal_get_synchronized_wrapper (m), &error);
 301                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 302                 } else {
 303                         ret = runtime_method;
 304                 }
 305                 return ret;
 306         }
 307
 308         mono_class_setup_vtable (obj->vtable->klass);
 309
 310         int slot = mono_method_get_vtable_slot (m);
 311         if (mono_class_is_interface (m->klass)) {
 312                 g_assert (obj->vtable->klass != m->klass);
 313                 /* TODO: interface offset lookup is slow, go through IMT instead */
 314                 gboolean non_exact_match;
 315                 slot += mono_class_interface_offset_with_variance (obj->vtable->klass, m->klass, &non_exact_match);
 316         }
 317
 318         MonoMethod *virtual_method = obj->vtable->klass->vtable [slot];
 319         if (m->is_inflated && mono_method_get_context (m)->method_inst) {
 320                 MonoGenericContext context = { NULL, NULL };
 321
 322                 if (mono_class_is_ginst (virtual_method->klass))
 323                         context.class_inst = mono_class_get_generic_class (virtual_method->klass)->context.class_inst;
 324                 else if (mono_class_is_gtd (virtual_method->klass))
 325                         context.class_inst = mono_class_get_generic_container (virtual_method->klass)->context.class_inst;
 326                 context.method_inst = mono_method_get_context (m)->method_inst;
 327
 328                 virtual_method = mono_class_inflate_generic_method_checked (virtual_method, &context, &error);
 329                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 330         }
 331         RuntimeMethod *virtual_runtime_method = mono_interp_get_runtime_method (domain, virtual_method, &error);
 332         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 333         return virtual_runtime_method;
 334 }
 335
 336 static void inline
 337 stackval_from_data (MonoType *type, stackval *result, char *data, gboolean pinvoke)
 338 {
 339         if (type->byref) {
 340                 switch (type->type) {
 341                 case MONO_TYPE_OBJECT:
 342                 case MONO_TYPE_CLASS:
 343                 case MONO_TYPE_STRING:
 344                 case MONO_TYPE_ARRAY:
 345                 case MONO_TYPE_SZARRAY:
 346                         break;
 347                 default:
 348                         break;
 349                 }
 350                 result->data.p = *(gpointer*)data;
 351                 return;
 352         }
 353         switch (type->type) {
 354         case MONO_TYPE_VOID:
 355                 return;
 356         case MONO_TYPE_I1:
 357                 result->data.i = *(gint8*)data;
 358                 return;
 359         case MONO_TYPE_U1:
 360         case MONO_TYPE_BOOLEAN:
 361                 result->data.i = *(guint8*)data;
 362                 return;
 363         case MONO_TYPE_I2:
 364                 result->data.i = *(gint16*)data;
 365                 return;
 366         case MONO_TYPE_U2:
 367         case MONO_TYPE_CHAR:
 368                 result->data.i = *(guint16*)data;
 369                 return;
 370         case MONO_TYPE_I4:
 371                 result->data.i = *(gint32*)data;
 372                 return;
 373         case MONO_TYPE_U:
 374         case MONO_TYPE_I:
 375                 result->data.nati = *(mono_i*)data;
 376                 return;
 377         case MONO_TYPE_PTR:
 378                 result->data.p = *(gpointer*)data;
 379                 return;
 380         case MONO_TYPE_U4:
 381                 result->data.i = *(guint32*)data;
 382                 return;
 383         case MONO_TYPE_R4:
 384                 result->data.f = *(float*)data;
 385                 return;
 386         case MONO_TYPE_I8:
 387         case MONO_TYPE_U8:
 388                 result->data.l = *(gint64*)data;
 389                 return;
 390         case MONO_TYPE_R8:
 391                 result->data.f = *(double*)data;
 392                 return;
 393         case MONO_TYPE_STRING:
 394         case MONO_TYPE_SZARRAY:
 395         case MONO_TYPE_CLASS:
 396         case MONO_TYPE_OBJECT:
 397         case MONO_TYPE_ARRAY:
 398                 result->data.p = *(gpointer*)data;
 399                 return;
 400         case MONO_TYPE_VALUETYPE:
 401                 if (type->data.klass->enumtype) {
 402                         stackval_from_data (mono_class_enum_basetype (type->data.klass), result, data, pinvoke);
 403                         return;
 404                 } else
 405                         mono_value_copy (result->data.vt, data, type->data.klass);
 406                 return;
 407         case MONO_TYPE_GENERICINST:
 408                 stackval_from_data (&type->data.generic_class->container_class->byval_arg, result, data, pinvoke);
 409                 return;
 410         default:
 411                 g_warning ("got type 0x%02x", type->type);
 412                 g_assert_not_reached ();
 413         }
 414 }
 415
 416 static void inline
 417 stackval_to_data (MonoType *type, stackval *val, char *data, gboolean pinvoke)
 418 {
 419         if (type->byref) {
 420                 gpointer *p = (gpointer*)data;
 421                 *p = val->data.p;
 422                 return;
 423         }
 424         /* printf ("TODAT0 %p\n", data); */
 425         switch (type->type) {
 426         case MONO_TYPE_I1:
 427         case MONO_TYPE_U1: {
 428                 guint8 *p = (guint8*)data;
 429                 *p = val->data.i;
 430                 return;
 431         }
 432         case MONO_TYPE_BOOLEAN: {
 433                 guint8 *p = (guint8*)data;
 434                 *p = (val->data.i != 0);
 435                 return;
 436         }
 437         case MONO_TYPE_I2:
 438         case MONO_TYPE_U2:
 439         case MONO_TYPE_CHAR: {
 440                 guint16 *p = (guint16*)data;
 441                 *p = val->data.i;
 442                 return;
 443         }
 444         case MONO_TYPE_I: {
 445                 mono_i *p = (mono_i*)data;
 446                 /* In theory the value used by stloc should match the local var type
 447                    but in practice it sometimes doesn't (a int32 gets dup'd and stloc'd into
 448                    a native int - both by csc and mcs). Not sure what to do about sign extension
 449                    as it is outside the spec... doing the obvious */
 450                 *p = (mono_i)val->data.nati;
 451                 return;
 452         }
 453         case MONO_TYPE_U: {
 454                 mono_u *p = (mono_u*)data;
 455                 /* see above. */
 456                 *p = (mono_u)val->data.nati;
 457                 return;
 458         }
 459         case MONO_TYPE_I4:
 460         case MONO_TYPE_U4: {
 461                 gint32 *p = (gint32*)data;
 462                 *p = val->data.i;
 463                 return;
 464         }
 465         case MONO_TYPE_I8:
 466         case MONO_TYPE_U8: {
 467                 gint64 *p = (gint64*)data;
 468                 *p = val->data.l;
 469                 return;
 470         }
 471         case MONO_TYPE_R4: {
 472                 float *p = (float*)data;
 473                 *p = val->data.f;
 474                 return;
 475         }
 476         case MONO_TYPE_R8: {
 477                 double *p = (double*)data;
 478                 *p = val->data.f;
 479                 return;
 480         }
 481         case MONO_TYPE_STRING:
 482         case MONO_TYPE_SZARRAY:
 483         case MONO_TYPE_CLASS:
 484         case MONO_TYPE_OBJECT:
 485         case MONO_TYPE_ARRAY:
 486         case MONO_TYPE_PTR: {
 487                 gpointer *p = (gpointer*)data;
 488                 *p = val->data.p;
 489                 return;
 490         }
 491         case MONO_TYPE_VALUETYPE:
 492                 if (type->data.klass->enumtype) {
 493                         stackval_to_data (mono_class_enum_basetype (type->data.klass), val, data, pinvoke);
 494                         return;
 495                 } else
 496                         mono_value_copy (data, val->data.vt, type->data.klass);
 497                 return;
 498         case MONO_TYPE_GENERICINST:
 499                 stackval_to_data (&type->data.generic_class->container_class->byval_arg, val, data, pinvoke);
 500                 return;
 501         default:
 502                 g_warning ("got type %x", type->type);
 503                 g_assert_not_reached ();
 504         }
 505 }
 506
 507 static void
 508 fill_in_trace (MonoException *exception, MonoInvocation *frame)
 509 {
 510         char *stack_trace = dump_frame (frame);
 511         MonoDomain *domain = mono_domain_get();
 512         (exception)->stack_trace = mono_string_new (domain, stack_trace);
 513         (exception)->trace_ips = get_trace_ips (domain, frame);
 514         g_free (stack_trace);
 515 }
 516
 517 #define FILL_IN_TRACE(exception, frame) fill_in_trace(exception, frame)
 518
 519 #define THROW_EX(exception,ex_ip)       \
 520         do {\
 521                 frame->ip = (ex_ip);            \
 522                 frame->ex = (MonoException*)(exception);        \
 523                 FILL_IN_TRACE(frame->ex, frame); \
 524                 goto handle_exception;  \
 525         } while (0)
 526
 527 static MonoObject*
 528 ves_array_create (MonoInvocation *frame, MonoDomain *domain, MonoClass *klass, MonoMethodSignature *sig, stackval *values)
 529 {
 530         uintptr_t *lengths;
 531         intptr_t *lower_bounds;
 532         MonoObject *obj;
 533         MonoError error;
 534         int i;
 535
 536         lengths = alloca (sizeof (uintptr_t) * klass->rank * 2);
 537         for (i = 0; i < sig->param_count; ++i) {
 538                 lengths [i] = values->data.i;
 539                 values ++;
 540         }
 541         if (klass->rank == sig->param_count) {
 542                 /* Only lengths provided. */
 543                 lower_bounds = NULL;
 544         } else {
 545                 /* lower bounds are first. */
 546                 lower_bounds = (intptr_t *) lengths;
 547                 lengths += klass->rank;
 548         }
 549         obj = (MonoObject*) mono_array_new_full_checked (domain, klass, lengths, lower_bounds, &error);
 550         if (!mono_error_ok (&error)) {
 551                 frame->ex = mono_error_convert_to_exception (&error);
 552                 FILL_IN_TRACE (frame->ex, frame);
 553         }
 554         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 555         return obj;
 556 }
 557
 558 static gint32
 559 ves_array_calculate_index (MonoArray *ao, stackval *sp, MonoInvocation *frame)
 560 {
 561         g_assert (!frame->ex);
 562         MonoClass *ac = ((MonoObject *) ao)->vtable->klass;
 563
 564         guint32 pos = 0;
 565         if (ao->bounds) {
 566                 for (gint32 i = 0; i < ac->rank; i++) {
 567                         guint32 idx = sp [i].data.i;
 568                         guint32 lower = ao->bounds [i].lower_bound;
 569                         guint32 len = ao->bounds [i].length;
 570                         if (idx < lower || (idx - lower) >= len) {
 571                                 frame->ex = mono_get_exception_index_out_of_range ();
 572                                 FILL_IN_TRACE (frame->ex, frame);
 573                                 return -1;
 574                         }
 575                         pos = (pos * len) + idx - lower;
 576                 }
 577         } else {
 578                 pos = sp [0].data.i;
 579                 if (pos >= ao->max_length) {
 580                         frame->ex = mono_get_exception_index_out_of_range ();
 581                         FILL_IN_TRACE (frame->ex, frame);
 582                         return -1;
 583                 }
 584         }
 585         return pos;
 586 }
 587
 588 static void
 589 ves_array_set (MonoInvocation *frame)
 590 {
 591         stackval *sp = frame->stack_args + 1;
 592
 593         MonoObject *o = frame->stack_args->data.p;
 594         MonoArray *ao = (MonoArray *) o;
 595         MonoClass *ac = o->vtable->klass;
 596
 597         g_assert (ac->rank >= 1);
 598
 599         gint32 pos = ves_array_calculate_index (ao, sp, frame);
 600         if (frame->ex)
 601                 return;
 602
 603         if (sp [ac->rank].data.p && !mono_object_class (o)->element_class->valuetype) {
 604                 MonoError error;
 605                 MonoObject *isinst = mono_object_isinst_checked (sp [ac->rank].data.p, mono_object_class (o)->element_class, &error);
 606                 mono_error_cleanup (&error);
 607                 if (!isinst) {
 608                         frame->ex = mono_get_exception_array_type_mismatch ();
 609                         FILL_IN_TRACE (frame->ex, frame);
 610                         return;
 611                 }
 612         }
 613
 614         gint32 esize = mono_array_element_size (ac);
 615         gpointer ea = mono_array_addr_with_size (ao, esize, pos);
 616
 617         MonoType *mt = mono_method_signature (frame->runtime_method->method)->params [ac->rank];
 618         stackval_to_data (mt, &sp [ac->rank], ea, FALSE);
 619 }
 620
 621 static void
 622 ves_array_get (MonoInvocation *frame)
 623 {
 624         stackval *sp = frame->stack_args + 1;
 625
 626         MonoObject *o = frame->stack_args->data.p;
 627         MonoArray *ao = (MonoArray *) o;
 628         MonoClass *ac = o->vtable->klass;
 629
 630         g_assert (ac->rank >= 1);
 631
 632         gint32 pos = ves_array_calculate_index (ao, sp, frame);
 633         if (frame->ex)
 634                 return;
 635
 636         gint32 esize = mono_array_element_size (ac);
 637         gpointer ea = mono_array_addr_with_size (ao, esize, pos);
 638
 639         MonoType *mt = mono_method_signature (frame->runtime_method->method)->ret;
 640         stackval_from_data (mt, frame->retval, ea, FALSE);
 641 }
 642
 643 static gpointer
 644 ves_array_element_address (MonoInvocation *frame, MonoClass *required_type, MonoArray *ao, stackval *sp, gboolean needs_typecheck)
 645 {
 646         MonoClass *ac = ((MonoObject *) ao)->vtable->klass;
 647
 648         g_assert (ac->rank >= 1);
 649
 650         gint32 pos = ves_array_calculate_index (ao, sp, frame);
 651         if (frame->ex)
 652                 return NULL;
 653
 654         if (needs_typecheck && !mono_class_is_assignable_from (mono_object_class ((MonoObject *) ao)->element_class, required_type->element_class)) {
 655                 frame->ex = mono_get_exception_array_type_mismatch ();
 656                 FILL_IN_TRACE (frame->ex, frame);
 657                 return NULL;
 658         }
 659         gint32 esize = mono_array_element_size (ac);
 660         return mono_array_addr_with_size (ao, esize, pos);
 661 }
 662
 663 void
 664 interp_walk_stack_with_ctx (MonoInternalStackWalk func, MonoContext *ctx, MonoUnwindOptions options, void *user_data)
 665 {
 666         MonoError error;
 667         ThreadContext *context = mono_native_tls_get_value (thread_context_id);
 668
 669         MonoInvocation *frame = context->current_frame;
 670
 671         while (frame) {
 672                 MonoStackFrameInfo fi;
 673                 memset (&fi, 0, sizeof (MonoStackFrameInfo));
 674
 675                 /* TODO: hack to make some asserts happy. */
 676                 fi.ji = (MonoJitInfo *) frame->runtime_method;
 677
 678                 if (frame->runtime_method)
 679                         fi.method = fi.actual_method = frame->runtime_method->method;
 680
 681                 if (!fi.method || (fi.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || (fi.method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))) {
 682                         fi.il_offset = -1;
 683                         fi.type = FRAME_TYPE_MANAGED_TO_NATIVE;
 684                 } else {
 685                         MonoMethodHeader *hd = mono_method_get_header_checked (fi.method, &error);
 686                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 687                         fi.type = FRAME_TYPE_MANAGED;
 688                         fi.il_offset = frame->ip - (const unsigned short *) hd->code;
 689                         if (!fi.method->wrapper_type)
 690                                 fi.managed = TRUE;
 691                 }
 692
 693                 if (func (&fi, ctx, user_data))
 694                         return;
 695                 frame = frame->parent;
 696         }
 697
 698         g_assert (0);
 699 }
 700
 701 static MonoPIFunc mono_interp_enter_icall_trampoline = NULL;
 702
 703 struct _MethodArguments {
 704         size_t ilen;
 705         gpointer *iargs;
 706         size_t flen;
 707         double *fargs;
 708         gpointer *retval;
 709         size_t is_float_ret;
 710 };
 711
 712 typedef struct _MethodArguments MethodArguments;
 713
 714 // TODO: this function is also arch dependent (register width).
 715 static MethodArguments* build_args_from_sig (MonoMethodSignature *sig, MonoInvocation *frame)
 716 {
 717         // TODO: don't malloc this data structure.
 718         MethodArguments *margs = g_malloc0 (sizeof (MethodArguments));
 719
 720         if (sig->hasthis)
 721                 margs->ilen++;
 722
 723         for (int i = 0; i < sig->param_count; i++) {
 724                 guint32 ptype = sig->params [i]->byref ? MONO_TYPE_PTR : sig->params [i]->type;
 725                 switch (ptype) {
 726                 case MONO_TYPE_BOOLEAN:
 727                 case MONO_TYPE_CHAR:
 728                 case MONO_TYPE_I1:
 729                 case MONO_TYPE_U1:
 730                 case MONO_TYPE_I2:
 731                 case MONO_TYPE_U2:
 732                 case MONO_TYPE_I4:
 733                 case MONO_TYPE_U4:
 734                 case MONO_TYPE_I:
 735                 case MONO_TYPE_U:
 736                 case MONO_TYPE_PTR:
 737                 case MONO_TYPE_SZARRAY:
 738                 case MONO_TYPE_CLASS:
 739                 case MONO_TYPE_OBJECT:
 740                 case MONO_TYPE_STRING:
 741                 case MONO_TYPE_I8:
 742                 case MONO_TYPE_VALUETYPE:
 743                 case MONO_TYPE_GENERICINST:
 744                         margs->ilen++;
 745                         break;
 746                 case MONO_TYPE_R4:
 747                 case MONO_TYPE_R8:
 748                         margs->flen++;
 749                         break;
 750                 default:
 751                         g_error ("build_args_from_sig: not implemented yet (1): 0x%x\n", ptype);
 752                 }
 753         }
 754
 755         if (margs->ilen > 0)
 756                 margs->iargs = g_malloc0 (sizeof (gpointer) * margs->ilen);
 757
 758         if (margs->flen > 0)
 759                 margs->fargs = g_malloc0 (sizeof (double) * margs->flen);
 760
 761         if (margs->ilen > 8)
 762                 g_error ("build_args_from_sig: TODO, allocate gregs: %d\n", margs->ilen);
 763
 764         if (margs->flen > 3)
 765                 g_error ("build_args_from_sig: TODO, allocate fregs: %d\n", margs->flen);
 766
 767
 768         size_t int_i = 0;
 769         size_t int_f = 0;
 770
 771         if (sig->hasthis) {
 772                 margs->iargs [0] = frame->stack_args->data.p;
 773                 int_i++;
 774         }
 775
 776         for (int i = 0; i < sig->param_count; i++) {
 777                 guint32 ptype = sig->params [i]->byref ? MONO_TYPE_PTR : sig->params [i]->type;
 778                 switch (ptype) {
 779                 case MONO_TYPE_BOOLEAN:
 780                 case MONO_TYPE_CHAR:
 781                 case MONO_TYPE_I1:
 782                 case MONO_TYPE_U1:
 783                 case MONO_TYPE_I2:
 784                 case MONO_TYPE_U2:
 785                 case MONO_TYPE_I4:
 786                 case MONO_TYPE_U4:
 787                 case MONO_TYPE_I:
 788                 case MONO_TYPE_U:
 789                 case MONO_TYPE_PTR:
 790                 case MONO_TYPE_SZARRAY:
 791                 case MONO_TYPE_CLASS:
 792                 case MONO_TYPE_OBJECT:
 793                 case MONO_TYPE_STRING:
 794                 case MONO_TYPE_I8:
 795                 case MONO_TYPE_VALUETYPE:
 796                 case MONO_TYPE_GENERICINST:
 797                         margs->iargs [int_i] = frame->stack_args [i].data.p;
 798 #if DEBUG_INTERP
 799                         g_print ("build_args_from_sig: margs->iargs[%d]: %p (frame @ %d)\n", int_i, margs->iargs[int_i], i);
 800 #endif
 801                         int_i++;
 802                         break;
 803                 case MONO_TYPE_R4:
 804                 case MONO_TYPE_R8:
 805                         margs->fargs [int_f] = frame->stack_args [i].data.f;
 806                         int_f++;
 807                         break;
 808                 default:
 809                         g_error ("build_args_from_sig: not implemented yet (2): 0x%x\n", ptype);
 810                 }
 811         }
 812
 813         switch (sig->ret->type) {
 814                 case MONO_TYPE_BOOLEAN:
 815                 case MONO_TYPE_CHAR:
 816                 case MONO_TYPE_I1:
 817                 case MONO_TYPE_U1:
 818                 case MONO_TYPE_I2:
 819                 case MONO_TYPE_U2:
 820                 case MONO_TYPE_I4:
 821                 case MONO_TYPE_U4:
 822                 case MONO_TYPE_I:
 823                 case MONO_TYPE_U:
 824                 case MONO_TYPE_PTR:
 825                 case MONO_TYPE_SZARRAY:
 826                 case MONO_TYPE_CLASS:
 827                 case MONO_TYPE_OBJECT:
 828                 case MONO_TYPE_STRING:
 829                 case MONO_TYPE_I8:
 830                 case MONO_TYPE_VALUETYPE:
 831                 case MONO_TYPE_GENERICINST:
 832                         margs->retval = &(frame->retval->data.p);
 833                         break;
 834                 case MONO_TYPE_R4:
 835                 case MONO_TYPE_R8:
 836                         margs->retval = &(frame->retval->data.p);
 837                         margs->is_float_ret = 1;
 838                         break;
 839                 case MONO_TYPE_VOID:
 840                         margs->retval = NULL;
 841                         break;
 842                 default:
 843                         g_error ("build_args_from_sig: ret type not implemented yet: 0x%x\n", sig->ret->type);
 844         }
 845
 846         return margs;
 847 }
 848
 849 static void
 850 ves_pinvoke_method (MonoInvocation *frame, MonoMethodSignature *sig, MonoFuncV addr, gboolean string_ctor, ThreadContext *context)
 851 {
 852         jmp_buf env;
 853         MonoInvocation *old_frame = context->current_frame;
 854         MonoInvocation *old_env_frame = context->env_frame;
 855         jmp_buf *old_env = context->current_env;
 856
 857         if (setjmp (env)) {
 858                 context->current_frame = old_frame;
 859                 context->env_frame = old_env_frame;
 860                 context->current_env = old_env;
 861                 context->managed_code = 1;
 862                 return;
 863         }
 864
 865         frame->ex = NULL;
 866         context->env_frame = frame;
 867         context->current_env = &env;
 868
 869         g_assert (!frame->runtime_method);
 870         if (!mono_interp_enter_icall_trampoline) {
 871                 MonoTrampInfo *info;
 872                 mono_interp_enter_icall_trampoline = mono_arch_get_enter_icall_trampoline (&info);
 873                 // TODO:
 874                 // mono_tramp_info_register (info, NULL);
 875         }
 876
 877         MethodArguments *margs = build_args_from_sig (sig, frame);
 878 #if DEBUG_INTERP
 879         g_print ("ICALL: mono_interp_enter_icall_trampoline = %p, addr = %p\n", mono_interp_enter_icall_trampoline, addr);
 880         g_print ("margs(out): ilen=%d, flen=%d\n", margs->ilen, margs->flen);
 881 #endif
 882
 883         context->current_frame = frame;
 884         context->managed_code = 0;
 885
 886         mono_interp_enter_icall_trampoline (addr, margs);
 887
 888         context->managed_code = 1;
 889         /* domain can only be changed by native code */
 890         context->domain = mono_domain_get ();
 891
 892         if (*mono_thread_interruption_request_flag ()) {
 893                 MonoException *exc = mono_thread_interruption_checkpoint ();
 894                 if (exc) {
 895                         frame->ex = exc;
 896                         context->search_for_handler = 1;
 897                 }
 898         }
 899
 900         if (!frame->ex && !MONO_TYPE_ISSTRUCT (sig->ret))
 901                 stackval_from_data (sig->ret, frame->retval, (char*)&frame->retval->data.p, sig->pinvoke);
 902
 903         context->current_frame = old_frame;
 904         context->env_frame = old_env_frame;
 905         context->current_env = old_env;
 906
 907         g_free (margs->iargs);
 908         g_free (margs->fargs);
 909         g_free (margs);
 910 }
 911
 912 void
 913 mono_interp_init_delegate (MonoDelegate *del)
 914 {
 915         if (!del->method)
 916                 del->method = ((RuntimeMethod *) del->method_ptr)->method;
 917 }
 918
 919 /*
 920  * From the spec:
 921  * runtime specifies that the implementation of the method is automatically
 922  * provided by the runtime and is primarily used for the methods of delegates.
 923  */
 924 static void
 925 ves_runtime_method (MonoInvocation *frame, ThreadContext *context)
 926 {
 927         MonoMethod *method = frame->runtime_method->method;
 928         const char *name = method->name;
 929         MonoObject *obj = (MonoObject*) frame->stack_args->data.p;
 930         MonoObject *isinst_obj;
 931         MonoError error;
 932
 933         mono_class_init (method->klass);
 934
 935         isinst_obj = mono_object_isinst_checked (obj, mono_defaults.array_class, &error);
 936         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 937         if (obj && isinst_obj) {
 938                 if (*name == 'S' && (strcmp (name, "Set") == 0)) {
 939                         ves_array_set (frame);
 940                         return;
 941                 }
 942                 if (*name == 'G' && (strcmp (name, "Get") == 0)) {
 943                         ves_array_get (frame);
 944                         return;
 945                 }
 946         }
 947
 948         g_error ("Don't know how to exec runtime method %s.%s::%s",
 949                         method->klass->name_space, method->klass->name,
 950                         method->name);
 951 }
 952
 953 static char*
 954 dump_stack (stackval *stack, stackval *sp)
 955 {
 956         stackval *s = stack;
 957         GString *str = g_string_new ("");
 958
 959         if (sp == stack)
 960                 return g_string_free (str, FALSE);
 961
 962         while (s < sp) {
 963                 g_string_append_printf (str, "[%p (%lld)] ", s->data.l, s->data.l);
 964                 ++s;
 965         }
 966         return g_string_free (str, FALSE);
 967 }
 968
 969 static void
 970 dump_stackval (GString *str, stackval *s, MonoType *type)
 971 {
 972         switch (type->type) {
 973         case MONO_TYPE_I1:
 974         case MONO_TYPE_U1:
 975         case MONO_TYPE_I2:
 976         case MONO_TYPE_U2:
 977         case MONO_TYPE_I4:
 978         case MONO_TYPE_U4:
 979         case MONO_TYPE_CHAR:
 980         case MONO_TYPE_BOOLEAN:
 981                 g_string_append_printf (str, "[%d] ", s->data.i);
 982                 break;
 983         case MONO_TYPE_STRING:
 984         case MONO_TYPE_SZARRAY:
 985         case MONO_TYPE_CLASS:
 986         case MONO_TYPE_OBJECT:
 987         case MONO_TYPE_ARRAY:
 988         case MONO_TYPE_PTR:
 989         case MONO_TYPE_I:
 990         case MONO_TYPE_U:
 991                 g_string_append_printf (str, "[%p] ", s->data.p);
 992                 break;
 993         case MONO_TYPE_VALUETYPE:
 994                 if (type->data.klass->enumtype)
 995                         g_string_append_printf (str, "[%d] ", s->data.i);
 996                 else
 997                         g_string_append_printf (str, "[vt:%p] ", s->data.p);
 998                 break;
 999         case MONO_TYPE_R4:
1000         case MONO_TYPE_R8:
1001                 g_string_append_printf (str, "[%g] ", s->data.f);
1002                 break;
1003         case MONO_TYPE_I8:
1004         case MONO_TYPE_U8:
1005         default: {
1006                 GString *res = g_string_new ("");
1007                 mono_type_get_desc (res, type, TRUE);
1008                 g_string_append_printf (str, "[{%s} %lld/0x%0llx] ", res->str, s->data.l, s->data.l);
1009                 g_string_free (res, TRUE);
1010                 break;
1011         }
1012         }
1013 }
1014
1015 static char*
1016 dump_args (MonoInvocation *inv)
1017 {
1018         GString *str = g_string_new ("");
1019         int i;
1020         MonoMethodSignature *signature = mono_method_signature (inv->runtime_method->method);
1021
1022         if (signature->param_count == 0 && !signature->hasthis)
1023                 return g_string_free (str, FALSE);
1024
1025         if (signature->hasthis) {
1026                 MonoMethod *method = inv->runtime_method->method;
1027                 dump_stackval (str, inv->stack_args, &method->klass->byval_arg);
1028         }
1029
1030         for (i = 0; i < signature->param_count; ++i)
1031                 dump_stackval (str, inv->stack_args + (!!signature->hasthis) + i, signature->params [i]);
1032
1033         return g_string_free (str, FALSE);
1034 }
1035
1036 static char*
1037 dump_retval (MonoInvocation *inv)
1038 {
1039         GString *str = g_string_new ("");
1040         MonoType *ret = mono_method_signature (inv->runtime_method->method)->ret;
1041
1042         if (ret->type != MONO_TYPE_VOID)
1043                 dump_stackval (str, inv->retval, ret);
1044
1045         return g_string_free (str, FALSE);
1046 }
1047
1048 static char*
1049 dump_frame (MonoInvocation *inv)
1050 {
1051         GString *str = g_string_new ("");
1052         int i;
1053         char *args;
1054         MonoError error;
1055
1056         for (i = 0; inv; inv = inv->parent) {
1057                 if (inv->runtime_method != NULL) {
1058                         MonoMethod *method = inv->runtime_method->method;
1059                         MonoClass *k;
1060
1061                         int codep = 0;
1062                         const char * opname = "";
1063                         char *name;
1064                         gchar *source = NULL;
1065
1066                         k = method->klass;
1067
1068                         if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
1069                                 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) == 0) {
1070                                 MonoMethodHeader *hd = mono_method_get_header_checked (method, &error);
1071                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1072
1073                                 if (hd != NULL) {
1074                                         if (inv->ip) {
1075                                                 opname = mono_interp_opname [*inv->ip];
1076                                                 codep = inv->ip - inv->runtime_method->code;
1077                                                 source = g_strdup_printf ("%s:%d // (TODO: proper stacktrace)", method->name, codep);
1078                                         } else
1079                                                 opname = "";
1080
1081 #if 0
1082                                         MonoDebugSourceLocation *minfo = mono_debug_lookup_method (method);
1083                                         source = mono_debug_method_lookup_location (minfo, codep);
1084 #endif
1085                                 }
1086                         }
1087                         args = dump_args (inv);
1088                         name = mono_method_full_name (method, TRUE);
1089                         if (source)
1090                                 g_string_append_printf (str, "#%d: 0x%05x %-10s in %s (%s) at %s\n", i, codep, opname, name, args, source);
1091                         else
1092                                 g_string_append_printf (str, "#%d: 0x%05x %-10s in %s (%s)\n", i, codep, opname, name, args);
1093                         g_free (name);
1094                         g_free (args);
1095                         g_free (source);
1096                         ++i;
1097                 }
1098         }
1099         return g_string_free (str, FALSE);
1100 }
1101
1102 static MonoArray *
1103 get_trace_ips (MonoDomain *domain, MonoInvocation *top)
1104 {
1105         int i;
1106         MonoArray *res;
1107         MonoInvocation *inv;
1108         MonoError error;
1109
1110         for (i = 0, inv = top; inv; inv = inv->parent)
1111                 if (inv->runtime_method != NULL)
1112                         ++i;
1113
1114         res = mono_array_new_checked (domain, mono_defaults.int_class, 2 * i, &error);
1115         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1116
1117         for (i = 0, inv = top; inv; inv = inv->parent)
1118                 if (inv->runtime_method != NULL) {
1119                         mono_array_set (res, gpointer, i, inv->runtime_method);
1120                         ++i;
1121                         mono_array_set (res, gpointer, i, (gpointer)inv->ip);
1122                         ++i;
1123                 }
1124
1125         return res;
1126 }
1127
1128
1129 #define MYGUINT64_MAX 18446744073709551615ULL
1130 #define MYGINT64_MAX 9223372036854775807LL
1131 #define MYGINT64_MIN (-MYGINT64_MAX -1LL)
1132
1133 #define MYGUINT32_MAX 4294967295U
1134 #define MYGINT32_MAX 2147483647
1135 #define MYGINT32_MIN (-MYGINT32_MAX -1)
1136
1137 #define CHECK_ADD_OVERFLOW(a,b) \
1138         (gint32)(b) >= 0 ? (gint32)(MYGINT32_MAX) - (gint32)(b) < (gint32)(a) ? -1 : 0  \
1139         : (gint32)(MYGINT32_MIN) - (gint32)(b) > (gint32)(a) ? +1 : 0
1140
1141 #define CHECK_SUB_OVERFLOW(a,b) \
1142         (gint32)(b) < 0 ? (gint32)(MYGINT32_MAX) + (gint32)(b) < (gint32)(a) ? -1 : 0   \
1143         : (gint32)(MYGINT32_MIN) + (gint32)(b) > (gint32)(a) ? +1 : 0
1144
1145 #define CHECK_ADD_OVERFLOW_UN(a,b) \
1146         (guint32)(MYGUINT32_MAX) - (guint32)(b) < (guint32)(a) ? -1 : 0
1147
1148 #define CHECK_SUB_OVERFLOW_UN(a,b) \
1149         (guint32)(a) < (guint32)(b) ? -1 : 0
1150
1151 #define CHECK_ADD_OVERFLOW64(a,b) \
1152         (gint64)(b) >= 0 ? (gint64)(MYGINT64_MAX) - (gint64)(b) < (gint64)(a) ? -1 : 0  \
1153         : (gint64)(MYGINT64_MIN) - (gint64)(b) > (gint64)(a) ? +1 : 0
1154
1155 #define CHECK_SUB_OVERFLOW64(a,b) \
1156         (gint64)(b) < 0 ? (gint64)(MYGINT64_MAX) + (gint64)(b) < (gint64)(a) ? -1 : 0   \
1157         : (gint64)(MYGINT64_MIN) + (gint64)(b) > (gint64)(a) ? +1 : 0
1158
1159 #define CHECK_ADD_OVERFLOW64_UN(a,b) \
1160         (guint64)(MYGUINT64_MAX) - (guint64)(b) < (guint64)(a) ? -1 : 0
1161
1162 #define CHECK_SUB_OVERFLOW64_UN(a,b) \
1163         (guint64)(a) < (guint64)(b) ? -1 : 0
1164
1165 #if SIZEOF_VOID_P == 4
1166 #define CHECK_ADD_OVERFLOW_NAT(a,b) CHECK_ADD_OVERFLOW(a,b)
1167 #define CHECK_ADD_OVERFLOW_NAT_UN(a,b) CHECK_ADD_OVERFLOW_UN(a,b)
1168 #else
1169 #define CHECK_ADD_OVERFLOW_NAT(a,b) CHECK_ADD_OVERFLOW64(a,b)
1170 #define CHECK_ADD_OVERFLOW_NAT_UN(a,b) CHECK_ADD_OVERFLOW64_UN(a,b)
1171 #endif
1172
1173 /* Resolves to TRUE if the operands would overflow */
1174 #define CHECK_MUL_OVERFLOW(a,b) \
1175         ((gint32)(a) == 0) || ((gint32)(b) == 0) ? 0 : \
1176         (((gint32)(a) > 0) && ((gint32)(b) == -1)) ? FALSE : \
1177         (((gint32)(a) < 0) && ((gint32)(b) == -1)) ? (a == - MYGINT32_MAX) : \
1178         (((gint32)(a) > 0) && ((gint32)(b) > 0)) ? (gint32)(a) > ((MYGINT32_MAX) / (gint32)(b)) : \
1179         (((gint32)(a) > 0) && ((gint32)(b) < 0)) ? (gint32)(a) > ((MYGINT32_MIN) / (gint32)(b)) : \
1180         (((gint32)(a) < 0) && ((gint32)(b) > 0)) ? (gint32)(a) < ((MYGINT32_MIN) / (gint32)(b)) : \
1181         (gint32)(a) < ((MYGINT32_MAX) / (gint32)(b))
1182
1183 #define CHECK_MUL_OVERFLOW_UN(a,b) \
1184         ((guint32)(a) == 0) || ((guint32)(b) == 0) ? 0 : \
1185         (guint32)(b) > ((MYGUINT32_MAX) / (guint32)(a))
1186
1187 #define CHECK_MUL_OVERFLOW64(a,b) \
1188         ((gint64)(a) == 0) || ((gint64)(b) == 0) ? 0 : \
1189         (((gint64)(a) > 0) && ((gint64)(b) == -1)) ? FALSE : \
1190         (((gint64)(a) < 0) && ((gint64)(b) == -1)) ? (a == - MYGINT64_MAX) : \
1191         (((gint64)(a) > 0) && ((gint64)(b) > 0)) ? (gint64)(a) > ((MYGINT64_MAX) / (gint64)(b)) : \
1192         (((gint64)(a) > 0) && ((gint64)(b) < 0)) ? (gint64)(a) > ((MYGINT64_MIN) / (gint64)(b)) : \
1193         (((gint64)(a) < 0) && ((gint64)(b) > 0)) ? (gint64)(a) < ((MYGINT64_MIN) / (gint64)(b)) : \
1194         (gint64)(a) < ((MYGINT64_MAX) / (gint64)(b))
1195
1196 #define CHECK_MUL_OVERFLOW64_UN(a,b) \
1197         ((guint64)(a) == 0) || ((guint64)(b) == 0) ? 0 : \
1198         (guint64)(b) > ((MYGUINT64_MAX) / (guint64)(a))
1199
1200 #if SIZEOF_VOID_P == 4
1201 #define CHECK_MUL_OVERFLOW_NAT(a,b) CHECK_MUL_OVERFLOW(a,b)
1202 #define CHECK_MUL_OVERFLOW_NAT_UN(a,b) CHECK_MUL_OVERFLOW_UN(a,b)
1203 #else
1204 #define CHECK_MUL_OVERFLOW_NAT(a,b) CHECK_MUL_OVERFLOW64(a,b)
1205 #define CHECK_MUL_OVERFLOW_NAT_UN(a,b) CHECK_MUL_OVERFLOW64_UN(a,b)
1206 #endif
1207
1208 MonoObject*
1209 mono_interp_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc, MonoError *error)
1210 {
1211         MonoInvocation frame;
1212         ThreadContext * volatile context = mono_native_tls_get_value (thread_context_id);
1213         MonoObject *retval = NULL;
1214         MonoMethodSignature *sig = mono_method_signature (method);
1215         MonoClass *klass = mono_class_from_mono_type (sig->ret);
1216         int i, type, isobject = 0;
1217         void *ret = NULL;
1218         stackval result;
1219         stackval *args = alloca (sizeof (stackval) * (sig->param_count + !!sig->hasthis));
1220         ThreadContext context_struct;
1221         MonoInvocation *old_frame = NULL;
1222         jmp_buf env;
1223
1224         error_init (error);
1225
1226         frame.ex = NULL;
1227
1228         if (setjmp(env)) {
1229                 if (context != &context_struct) {
1230                         context->domain = mono_domain_get ();
1231                         context->current_frame = old_frame;
1232                         context->managed_code = 0;
1233                 } else
1234                         mono_native_tls_set_value (thread_context_id, NULL);
1235                 if (exc != NULL)
1236                         *exc = (MonoObject *)frame.ex;
1237                 return retval;
1238         }
1239
1240         if (context == NULL) {
1241                 context = &context_struct;
1242                 context_struct.base_frame = &frame;
1243                 context_struct.current_frame = NULL;
1244                 context_struct.env_frame = &frame;
1245                 context_struct.current_env = &env;
1246                 context_struct.search_for_handler = 0;
1247                 context_struct.managed_code = 0;
1248                 mono_native_tls_set_value (thread_context_id, context);
1249         }
1250         else
1251                 old_frame = context->current_frame;
1252
1253         context->domain = mono_domain_get ();
1254
1255         switch (sig->ret->type) {
1256         case MONO_TYPE_VOID:
1257                 break;
1258         case MONO_TYPE_STRING:
1259         case MONO_TYPE_OBJECT:
1260         case MONO_TYPE_CLASS:
1261         case MONO_TYPE_ARRAY:
1262         case MONO_TYPE_SZARRAY:
1263                 isobject = 1;
1264                 break;
1265         case MONO_TYPE_VALUETYPE:
1266                 retval = mono_object_new_checked (context->domain, klass, error);
1267                 ret = ((char*)retval) + sizeof (MonoObject);
1268                 if (!sig->ret->data.klass->enumtype)
1269                         result.data.vt = ret;
1270                 break;
1271         default:
1272                 retval = mono_object_new_checked (context->domain, klass, error);
1273                 ret = ((char*)retval) + sizeof (MonoObject);
1274                 break;
1275         }
1276
1277         if (sig->hasthis)
1278                 args [0].data.p = obj;
1279
1280         for (i = 0; i < sig->param_count; ++i) {
1281                 int a_index = i + !!sig->hasthis;
1282                 if (sig->params [i]->byref) {
1283                         args [a_index].data.p = params [i];
1284                         continue;
1285                 }
1286                 type = sig->params [i]->type;
1287 handle_enum:
1288                 switch (type) {
1289                 case MONO_TYPE_U1:
1290                 case MONO_TYPE_I1:
1291                 case MONO_TYPE_BOOLEAN:
1292                         args [a_index].data.i = *(MonoBoolean*)params [i];
1293                         break;
1294                 case MONO_TYPE_U2:
1295                 case MONO_TYPE_I2:
1296                 case MONO_TYPE_CHAR:
1297                         args [a_index].data.i = *(gint16*)params [i];
1298                         break;
1299 #if SIZEOF_VOID_P == 4
1300                 case MONO_TYPE_U: /* use VAL_POINTER? */
1301                 case MONO_TYPE_I:
1302 #endif
1303                 case MONO_TYPE_U4:
1304                 case MONO_TYPE_I4:
1305                         args [a_index].data.i = *(gint32*)params [i];
1306                         break;
1307 #if SIZEOF_VOID_P == 8
1308                 case MONO_TYPE_U:
1309                 case MONO_TYPE_I:
1310 #endif
1311                 case MONO_TYPE_U8:
1312                 case MONO_TYPE_I8:
1313                         args [a_index].data.l = *(gint64*)params [i];
1314                         break;
1315                 case MONO_TYPE_VALUETYPE:
1316                         if (sig->params [i]->data.klass->enumtype) {
1317                                 type = mono_class_enum_basetype (sig->params [i]->data.klass)->type;
1318                                 goto handle_enum;
1319                         } else {
1320                                 args [a_index].data.p = params [i];
1321                         }
1322                         break;
1323                 case MONO_TYPE_STRING:
1324                 case MONO_TYPE_CLASS:
1325                 case MONO_TYPE_ARRAY:
1326                 case MONO_TYPE_SZARRAY:
1327                 case MONO_TYPE_OBJECT:
1328                         args [a_index].data.p = params [i];
1329                         break;
1330                 default:
1331                         g_error ("type 0x%x not handled in  runtime invoke", sig->params [i]->type);
1332                 }
1333         }
1334
1335         if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
1336                 method = mono_marshal_get_native_wrapper (method, FALSE, FALSE);
1337         INIT_FRAME (&frame,context->current_frame,args,&result,mono_get_root_domain (),method,error);
1338         if (exc)
1339                 frame.invoke_trap = 1;
1340         context->managed_code = 1;
1341         ves_exec_method_with_context (&frame, context);
1342         context->managed_code = 0;
1343         if (context == &context_struct)
1344                 mono_native_tls_set_value (thread_context_id, NULL);
1345         else
1346                 context->current_frame = old_frame;
1347         if (frame.ex != NULL) {
1348                 if (exc != NULL) {
1349                         *exc = (MonoObject*) frame.ex;
1350                         return NULL;
1351                 }
1352                 if (context->current_env != NULL) {
1353                         context->env_frame->ex = frame.ex;
1354                         longjmp(*context->current_env, 1);
1355                 }
1356                 else
1357                         printf("dropped exception...\n");
1358         }
1359         if (sig->ret->type == MONO_TYPE_VOID && !method->string_ctor)
1360                 return NULL;
1361         if (isobject || method->string_ctor)
1362                 return result.data.p;
1363         stackval_to_data (sig->ret, &result, ret, sig->pinvoke);
1364         return retval;
1365 }
1366
1367 static stackval *
1368 do_icall (ThreadContext *context, int op, stackval *sp, gpointer ptr)
1369 {
1370         MonoInvocation *old_frame = context->current_frame;
1371         MonoInvocation *old_env_frame = context->env_frame;
1372         jmp_buf *old_env = context->current_env;
1373         jmp_buf env;
1374
1375         if (setjmp (env)) {
1376                 context->current_frame = old_frame;
1377                 context->env_frame = old_env_frame;
1378                 context->current_env = old_env;
1379                 context->managed_code = 1;
1380                 return sp;
1381         }
1382
1383         context->env_frame = context->current_frame;
1384         context->current_env = &env;
1385         context->managed_code = 0;
1386
1387         switch (op) {
1388         case MINT_ICALL_V_V: {
1389                 void (*func)() = ptr;
1390                 func ();
1391                 break;
1392         }
1393         case MINT_ICALL_V_P: {
1394                 gpointer (*func)() = ptr;
1395                 sp++;
1396                 sp [-1].data.p = func ();
1397                 break;
1398         }
1399         case MINT_ICALL_P_V: {
1400                 void (*func)(gpointer) = ptr;
1401                 func (sp [-1].data.p);
1402                 sp --;
1403                 break;
1404         }
1405         case MINT_ICALL_P_P: {
1406                 gpointer (*func)(gpointer) = ptr;
1407                 sp [-1].data.p = func (sp [-1].data.p);
1408                 break;
1409         }
1410         case MINT_ICALL_PP_V: {
1411                 void (*func)(gpointer,gpointer) = ptr;
1412                 sp -= 2;
1413                 func (sp [0].data.p, sp [1].data.p);
1414                 break;
1415         }
1416         case MINT_ICALL_PI_V: {
1417                 void (*func)(gpointer,int) = ptr;
1418                 sp -= 2;
1419                 func (sp [0].data.p, sp [1].data.i);
1420                 break;
1421         }
1422         case MINT_ICALL_PP_P: {
1423                 gpointer (*func)(gpointer,gpointer) = ptr;
1424                 --sp;
1425                 sp [-1].data.p = func (sp [-1].data.p, sp [0].data.p);
1426                 break;
1427         }
1428         case MINT_ICALL_PI_P: {
1429                 gpointer (*func)(gpointer,int) = ptr;
1430                 --sp;
1431                 sp [-1].data.p = func (sp [-1].data.p, sp [0].data.i);
1432                 break;
1433         }
1434         case MINT_ICALL_PPP_V: {
1435                 void (*func)(gpointer,gpointer,gpointer) = ptr;
1436                 sp -= 3;
1437                 func (sp [0].data.p, sp [1].data.p, sp [2].data.p);
1438                 break;
1439         }
1440         case MINT_ICALL_PPI_V: {
1441                 void (*func)(gpointer,gpointer,int) = ptr;
1442                 sp -= 3;
1443                 func (sp [0].data.p, sp [1].data.p, sp [2].data.i);
1444                 break;
1445         }
1446         default:
1447                 g_assert_not_reached ();
1448         }
1449
1450         context->env_frame = old_env_frame;
1451         context->current_env = old_env;
1452
1453         return sp;
1454 }
1455
1456 static mono_mutex_t create_method_pointer_mutex;
1457
1458 static GHashTable *method_pointer_hash = NULL;
1459
1460 static MonoMethod *method_pointers [2] = {0};
1461
1462 static MonoObject *
1463 mp_tramp_0 (MonoObject *this_obj, void **params, MonoObject **exc, void *compiled_method) {
1464         MonoError error;
1465         void *params_real[] = {this_obj, &params, &exc, &compiled_method};
1466         MonoObject *ret = mono_interp_runtime_invoke (method_pointers [0], NULL, params_real, NULL, &error);
1467         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1468         return ret;
1469 }
1470
1471 static MonoObject *
1472 mp_tramp_1 (MonoObject *this_obj, void **params, MonoObject **exc, void *compiled_method) {
1473         MonoError error;
1474         void *params_real[] = {this_obj, &params, &exc, &compiled_method};
1475         MonoObject *ret = mono_interp_runtime_invoke (method_pointers [1], NULL, params_real, NULL, &error);
1476         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1477         return ret;
1478 }
1479
1480 gpointer *mp_tramps[] = {(gpointer) mp_tramp_0, (gpointer) mp_tramp_1};
1481
1482 static int tramps_used = 0;
1483
1484 gpointer
1485 mono_interp_create_method_pointer (MonoMethod *method, MonoError *error)
1486 {
1487         gpointer addr;
1488         MonoJitInfo *ji;
1489
1490         mono_os_mutex_lock (&create_method_pointer_mutex);
1491         if (!method_pointer_hash) {
1492                 // FIXME: is registering method table as GC root really necessary?
1493                 // MONO_GC_REGISTER_ROOT_FIXED (method_pointer_hash);
1494                 method_pointer_hash = g_hash_table_new (NULL, NULL);
1495         }
1496         addr = g_hash_table_lookup (method_pointer_hash, method);
1497         if (addr) {
1498                 mono_os_mutex_unlock (&create_method_pointer_mutex);
1499                 return addr;
1500         }
1501
1502         /*
1503          * If it is a static P/Invoke method, we can just return the pointer
1504          * to the method implementation.
1505          */
1506         if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL && ((MonoMethodPInvoke*) method)->addr) {
1507                 ji = g_new0 (MonoJitInfo, 1);
1508                 ji->d.method = method;
1509                 ji->code_size = 1;
1510                 ji->code_start = addr = ((MonoMethodPInvoke*) method)->addr;
1511
1512                 mono_jit_info_table_add (mono_get_root_domain (), ji);
1513         }
1514         else {
1515                 g_assert (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE);
1516                 g_assert (tramps_used < 2);
1517
1518                 /* FIXME: needs locking */
1519                 method_pointers [tramps_used] = method;
1520                 addr = mp_tramps [tramps_used];
1521                 tramps_used++;
1522         }
1523
1524         g_hash_table_insert (method_pointer_hash, method, addr);
1525         mono_os_mutex_unlock (&create_method_pointer_mutex);
1526
1527         return addr;
1528 }
1529
1530 #if COUNT_OPS
1531 static int opcode_counts[512];
1532
1533 #define COUNT_OP(op) opcode_counts[op]++
1534 #else
1535 #define COUNT_OP(op)
1536 #endif
1537
1538 #if DEBUG_INTERP
1539 #define DUMP_INSTR() \
1540         if (tracing > 1) { \
1541                 char *ins; \
1542                 if (sp > frame->stack) { \
1543                         ins = dump_stack (frame->stack, sp); \
1544                 } else { \
1545                         ins = g_strdup (""); \
1546                 } \
1547                 sp->data.l = 0; \
1548                 output_indent (); \
1549                 char *mn = mono_method_full_name (frame->runtime_method->method, FALSE); \
1550                 g_print ("(%p) %s -> ", mono_thread_internal_current (), mn); \
1551                 g_free (mn); \
1552                 mono_interp_dis_mintop(rtm->code, ip); \
1553                 g_print ("\t%d:%s\n", vt_sp - vtalloc, ins); \
1554                 g_free (ins); \
1555         }
1556 #else
1557 #define DUMP_INSTR()
1558 #endif
1559
1560 #ifdef __GNUC__
1561 #define USE_COMPUTED_GOTO 1
1562 #endif
1563 #if USE_COMPUTED_GOTO
1564 #define MINT_IN_SWITCH(op) COUNT_OP(op); goto *in_labels[op];
1565 #define MINT_IN_CASE(x) LAB_ ## x:
1566 #if DEBUG_INTERP
1567 #define MINT_IN_BREAK if (tracing > 1) goto main_loop; else { COUNT_OP(*ip); goto *in_labels[*ip]; }
1568 #else
1569 #define MINT_IN_BREAK { COUNT_OP(*ip); goto *in_labels[*ip]; }
1570 #endif
1571 #define MINT_IN_DEFAULT mint_default: if (0) goto mint_default; /* make gcc shut up */
1572 #else
1573 #define MINT_IN_SWITCH(op) switch (op)
1574 #define MINT_IN_CASE(x) case x:
1575 #define MINT_IN_BREAK break
1576 #define MINT_IN_DEFAULT default:
1577 #endif
1578
1579 /*
1580  * Defining this causes register allocation errors in some versions of gcc:
1581  * error: unable to find a register to spill in class `SIREG'
1582  */
1583 /* #define MINT_USE_DEDICATED_IP_REG */
1584
1585 static void
1586 ves_exec_method_with_context (MonoInvocation *frame, ThreadContext *context)
1587 {
1588         MonoInvocation child_frame;
1589         GSList *finally_ips = NULL;
1590         const unsigned short *endfinally_ip = NULL;
1591 #if defined(__GNUC__) && defined (i386) && defined (MINT_USE_DEDICATED_IP_REG)
1592         register const unsigned short *ip asm ("%esi");
1593 #else
1594         register const unsigned short *ip;
1595 #endif
1596         register stackval *sp;
1597         RuntimeMethod *rtm;
1598 #if DEBUG_INTERP
1599         gint tracing = global_tracing;
1600         unsigned char *vtalloc;
1601 #endif
1602         int i32;
1603         unsigned char *vt_sp;
1604         unsigned char *locals;
1605         MonoError error;
1606         MonoObject *o = NULL;
1607         MonoClass *c;
1608 #if USE_COMPUTED_GOTO
1609         static void *in_labels[] = {
1610 #define OPDEF(a,b,c,d) \
1611         &&LAB_ ## a,
1612 #include "mintops.def"
1613         0 };
1614 #endif
1615
1616         frame->ex = NULL;
1617         frame->ex_handler = NULL;
1618         frame->ip = NULL;
1619         context->current_frame = frame;
1620
1621 #if DEBUG_INTERP
1622         debug_enter (frame, &tracing);
1623 #endif
1624
1625         if (!frame->runtime_method->transformed) {
1626                 context->managed_code = 0;
1627 #if DEBUG_INTERP
1628                 char *mn = mono_method_full_name (frame->runtime_method->method, TRUE);
1629                 g_print ("(%p) Transforming %s\n", mono_thread_internal_current (), mn);
1630                 g_free (mn);
1631 #endif
1632                 frame->ex = mono_interp_transform_method (frame->runtime_method, context);
1633                 context->managed_code = 1;
1634                 if (frame->ex) {
1635                         rtm = NULL;
1636                         ip = NULL;
1637                         goto exit_frame;
1638                 }
1639         }
1640
1641         rtm = frame->runtime_method;
1642         frame->args = alloca (rtm->alloca_size);
1643         memset (frame->args, 0, rtm->alloca_size);
1644
1645         sp = frame->stack = (stackval *)((char *)frame->args + rtm->args_size);
1646         memset (sp, 0, rtm->stack_size);
1647
1648         vt_sp = (unsigned char *) sp + rtm->stack_size;
1649         memset (vt_sp, 0, rtm->vt_stack_size);
1650 #if DEBUG_INTERP
1651         vtalloc = vt_sp;
1652 #endif
1653
1654         locals = (unsigned char *) vt_sp + rtm->vt_stack_size;
1655         memset (vt_sp, 0, rtm->locals_size);
1656
1657         child_frame.parent = frame;
1658
1659         /* ready to go */
1660         ip = rtm->code;
1661
1662         /*
1663          * using while (ip < end) may result in a 15% performance drop,
1664          * but it may be useful for debug
1665          */
1666         while (1) {
1667         main_loop:
1668                 /* g_assert (sp >= frame->stack); */
1669                 /* g_assert(vt_sp - vtalloc <= rtm->vt_stack_size); */
1670                 DUMP_INSTR();
1671                 MINT_IN_SWITCH (*ip) {
1672                 MINT_IN_CASE(MINT_INITLOCALS)
1673                         memset (locals, 0, rtm->locals_size);
1674                         ++ip;
1675                         MINT_IN_BREAK;
1676                 MINT_IN_CASE(MINT_NOP)
1677                         ++ip;
1678                         MINT_IN_BREAK;
1679                 MINT_IN_CASE(MINT_BREAK)
1680                         ++ip;
1681                         G_BREAKPOINT (); /* this is not portable... */
1682                         MINT_IN_BREAK;
1683                 MINT_IN_CASE(MINT_LDNULL)
1684                         sp->data.p = NULL;
1685                         ++ip;
1686                         ++sp;
1687                         MINT_IN_BREAK;
1688                 MINT_IN_CASE(MINT_VTRESULT) {
1689                         int ret_size = * (guint16 *)(ip + 1);
1690                         unsigned char *ret_vt_sp = vt_sp;
1691                         vt_sp -= READ32(ip + 2);
1692                         if (ret_size > 0) {
1693                                 memmove (vt_sp, ret_vt_sp, ret_size);
1694                                 sp [-1].data.p = vt_sp;
1695                                 vt_sp += (ret_size + 7) & ~7;
1696                         }
1697                         ip += 4;
1698                         MINT_IN_BREAK;
1699                 }
1700 #define LDC(n) do { sp->data.i = (n); ++ip; ++sp; } while (0)
1701                 MINT_IN_CASE(MINT_LDC_I4_M1)
1702                         LDC(-1);
1703                         MINT_IN_BREAK;
1704                 MINT_IN_CASE(MINT_LDC_I4_0)
1705                         LDC(0);
1706                         MINT_IN_BREAK;
1707                 MINT_IN_CASE(MINT_LDC_I4_1)
1708                         LDC(1);
1709                         MINT_IN_BREAK;
1710                 MINT_IN_CASE(MINT_LDC_I4_2)
1711                         LDC(2);
1712                         MINT_IN_BREAK;
1713                 MINT_IN_CASE(MINT_LDC_I4_3)
1714                         LDC(3);
1715                         MINT_IN_BREAK;
1716                 MINT_IN_CASE(MINT_LDC_I4_4)
1717                         LDC(4);
1718                         MINT_IN_BREAK;
1719                 MINT_IN_CASE(MINT_LDC_I4_5)
1720                         LDC(5);
1721                         MINT_IN_BREAK;
1722                 MINT_IN_CASE(MINT_LDC_I4_6)
1723                         LDC(6);
1724                         MINT_IN_BREAK;
1725                 MINT_IN_CASE(MINT_LDC_I4_7)
1726                         LDC(7);
1727                         MINT_IN_BREAK;
1728                 MINT_IN_CASE(MINT_LDC_I4_8)
1729                         LDC(8);
1730                         MINT_IN_BREAK;
1731                 MINT_IN_CASE(MINT_LDC_I4_S)
1732                         sp->data.i = *(const short *)(ip + 1);
1733                         ip += 2;
1734                         ++sp;
1735                         MINT_IN_BREAK;
1736                 MINT_IN_CASE(MINT_LDC_I4)
1737                         ++ip;
1738                         sp->data.i = READ32 (ip);
1739                         ip += 2;
1740                         ++sp;
1741                         MINT_IN_BREAK;
1742                 MINT_IN_CASE(MINT_LDC_I8)
1743                         ++ip;
1744                         sp->data.l = READ64 (ip);
1745                         ip += 4;
1746                         ++sp;
1747                         MINT_IN_BREAK;
1748                 MINT_IN_CASE(MINT_LDC_R4) {
1749                         guint32 val;
1750                         ++ip;
1751                         val = READ32(ip);
1752                         sp->data.f = * (float *)&val;
1753                         ip += 2;
1754                         ++sp;
1755                         MINT_IN_BREAK;
1756                 }
1757                 MINT_IN_CASE(MINT_LDC_R8)
1758                         sp->data.l = READ64 (ip + 1); /* note union usage */
1759                         ip += 5;
1760                         ++sp;
1761                         MINT_IN_BREAK;
1762                 MINT_IN_CASE(MINT_DUP)
1763                         sp [0] = sp[-1];
1764                         ++sp;
1765                         ++ip;
1766                         MINT_IN_BREAK;
1767                 MINT_IN_CASE(MINT_DUP_VT)
1768                         i32 = READ32 (ip + 1);
1769                         sp->data.p = vt_sp;
1770                         memcpy(sp->data.p, sp [-1].data.p, i32);
1771                         vt_sp += (i32 + 7) & ~7;
1772                         ++sp;
1773                         ip += 3;
1774                         MINT_IN_BREAK;
1775                 MINT_IN_CASE(MINT_POP) {
1776                         guint16 u16 = (* (guint16 *)(ip + 1)) + 1;
1777                         if (u16 > 1)
1778                                 memmove (sp - u16, sp - 1, (u16 - 1) * sizeof (stackval));
1779                         sp--;
1780                         ip += 2;
1781                         MINT_IN_BREAK;
1782                 }
1783                 MINT_IN_CASE(MINT_JMP) {
1784                         RuntimeMethod *new_method = rtm->data_items [* (guint16 *)(ip + 1)];
1785                         if (!new_method->transformed) {
1786                                 frame->ip = ip;
1787                                 frame->ex = mono_interp_transform_method (new_method, context);
1788                                 if (frame->ex)
1789                                         goto exit_frame;
1790                         }
1791                         ip += 2;
1792                         if (new_method->alloca_size > rtm->alloca_size)
1793                                 g_error ("MINT_JMP to method which needs more stack space (%d > %d)", new_method->alloca_size, rtm->alloca_size);
1794                         rtm = frame->runtime_method = new_method;
1795                         vt_sp = (unsigned char *) sp + rtm->stack_size;
1796 #if DEBUG_INTERP
1797                         vtalloc = vt_sp;
1798 #endif
1799                         locals = vt_sp + rtm->vt_stack_size;
1800                         ip = rtm->new_body_start; /* bypass storing input args from callers frame */
1801                         MINT_IN_BREAK;
1802                 }
1803                 MINT_IN_CASE(MINT_CALLI) {
1804                         MonoMethodSignature *csignature;
1805                         stackval *endsp = sp;
1806
1807                         frame->ip = ip;
1808
1809                         csignature = rtm->data_items [* (guint16 *)(ip + 1)];
1810                         ip += 2;
1811                         --sp;
1812                         --endsp;
1813                         child_frame.runtime_method = sp->data.p;
1814
1815                         sp->data.p = vt_sp;
1816                         child_frame.retval = sp;
1817                         /* decrement by the actual number of args */
1818                         sp -= csignature->param_count;
1819                         if (csignature->hasthis)
1820                                 --sp;
1821                         child_frame.stack_args = sp;
1822
1823                         /* `this' can be NULL for string:.ctor */
1824                         if (csignature->hasthis && sp->data.p && mono_object_is_transparent_proxy (sp->data.p)) {
1825                                 child_frame.runtime_method = mono_interp_get_runtime_method (context->domain, mono_marshal_get_remoting_invoke (child_frame.runtime_method->method), &error);
1826                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1827                         } else if (child_frame.runtime_method->method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1828                                 child_frame.runtime_method = mono_interp_get_runtime_method (context->domain, mono_marshal_get_native_wrapper (child_frame.runtime_method->method, FALSE, FALSE), &error);
1829                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1830                         }
1831
1832                         if (csignature->hasthis) {
1833                                 MonoObject *this_arg = sp->data.p;
1834
1835                                 if (this_arg->vtable->klass->valuetype) {
1836                                         gpointer *unboxed = mono_object_unbox (this_arg);
1837                                         sp [0].data.p = unboxed;
1838                                 }
1839                         }
1840
1841                         ves_exec_method_with_context (&child_frame, context);
1842
1843                         context->current_frame = frame;
1844
1845                         if (child_frame.ex) {
1846                                 /*
1847                                  * An exception occurred, need to run finally, fault and catch handlers..
1848                                  */
1849                                 frame->ex = child_frame.ex;
1850                                 goto handle_finally;
1851                         }
1852
1853                         /* need to handle typedbyref ... */
1854                         if (csignature->ret->type != MONO_TYPE_VOID) {
1855                                 *sp = *endsp;
1856                                 sp++;
1857                         }
1858                         MINT_IN_BREAK;
1859                 }
1860                 MINT_IN_CASE(MINT_CALLI_NAT) {
1861                         MonoMethodSignature *csignature;
1862                         stackval *endsp = sp;
1863                         unsigned char *code = NULL;
1864
1865                         frame->ip = ip;
1866
1867                         csignature = rtm->data_items [* (guint16 *)(ip + 1)];
1868                         ip += 2;
1869                         --sp;
1870                         --endsp;
1871                         code = sp->data.p;
1872                         child_frame.runtime_method = NULL;
1873
1874                         sp->data.p = vt_sp;
1875                         child_frame.retval = sp;
1876                         /* decrement by the actual number of args */
1877                         sp -= csignature->param_count;
1878                         if (csignature->hasthis)
1879                                 --sp;
1880                         child_frame.stack_args = sp;
1881                         ves_pinvoke_method (&child_frame, csignature, (MonoFuncV) code, FALSE, context);
1882
1883                         context->current_frame = frame;
1884
1885                         if (child_frame.ex) {
1886                                 /*
1887                                  * An exception occurred, need to run finally, fault and catch handlers..
1888                                  */
1889                                 frame->ex = child_frame.ex;
1890                                 if (context->search_for_handler) {
1891                                         context->search_for_handler = 0;
1892                                         goto handle_exception;
1893                                 }
1894                                 goto handle_finally;
1895                         }
1896
1897                         /* need to handle typedbyref ... */
1898                         if (csignature->ret->type != MONO_TYPE_VOID) {
1899                                 *sp = *endsp;
1900                                 sp++;
1901                         }
1902                         MINT_IN_BREAK;
1903                 }
1904                 MINT_IN_CASE(MINT_CALL) {
1905                         stackval *endsp = sp;
1906
1907                         frame->ip = ip;
1908
1909                         child_frame.runtime_method = rtm->data_items [* (guint16 *)(ip + 1)];
1910                         ip += 2;
1911                         sp->data.p = vt_sp;
1912                         child_frame.retval = sp;
1913                         /* decrement by the actual number of args */
1914                         sp -= child_frame.runtime_method->param_count;
1915                         if (child_frame.runtime_method->hasthis)
1916                                 --sp;
1917                         child_frame.stack_args = sp;
1918
1919                         /* `this' can be NULL for string:.ctor */
1920                         if (child_frame.runtime_method->hasthis && !child_frame.runtime_method->method->klass->valuetype && sp->data.p && mono_object_is_transparent_proxy (sp->data.p)) {
1921                                 child_frame.runtime_method = mono_interp_get_runtime_method (context->domain, mono_marshal_get_remoting_invoke (child_frame.runtime_method->method), &error);
1922                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1923                         }
1924                         ves_exec_method_with_context (&child_frame, context);
1925
1926                         context->current_frame = frame;
1927
1928                         if (child_frame.ex) {
1929                                 /*
1930                                  * An exception occurred, need to run finally, fault and catch handlers..
1931                                  */
1932                                 frame->ex = child_frame.ex;
1933                                 goto handle_finally;
1934                         }
1935
1936                         /* need to handle typedbyref ... */
1937                         *sp = *endsp;
1938                         sp++;
1939                         MINT_IN_BREAK;
1940                 }
1941                 MINT_IN_CASE(MINT_VCALL) {
1942                         frame->ip = ip;
1943
1944                         child_frame.runtime_method = rtm->data_items [* (guint16 *)(ip + 1)];
1945                         ip += 2;
1946
1947                         sp->data.p = vt_sp;
1948                         child_frame.retval = sp;
1949                         /* decrement by the actual number of args */
1950                         sp -= child_frame.runtime_method->param_count;
1951                         if (child_frame.runtime_method->hasthis) {
1952                                 --sp;
1953                                 MonoObject *this_arg = sp->data.p;
1954                                 if (!this_arg)
1955                                         THROW_EX (mono_get_exception_null_reference(), ip - 2);
1956                         }
1957                         child_frame.stack_args = sp;
1958
1959                         if (child_frame.runtime_method->hasthis && !child_frame.runtime_method->method->klass->valuetype && mono_object_is_transparent_proxy (sp->data.p)) {
1960                                 child_frame.runtime_method = mono_interp_get_runtime_method (context->domain, mono_marshal_get_remoting_invoke (child_frame.runtime_method->method), &error);
1961                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1962                         }
1963
1964                         ves_exec_method_with_context (&child_frame, context);
1965
1966                         context->current_frame = frame;
1967
1968                         if (child_frame.ex) {
1969                                 /*
1970                                  * An exception occurred, need to run finally, fault and catch handlers..
1971                                  */
1972                                 frame->ex = child_frame.ex;
1973                                 goto handle_finally;
1974                         }
1975                         MINT_IN_BREAK;
1976                 }
1977                 MINT_IN_CASE(MINT_CALLVIRT) {
1978                         stackval *endsp = sp;
1979                         MonoObject *this_arg;
1980                         guint32 token;
1981
1982                         frame->ip = ip;
1983
1984                         token = * (unsigned short *)(ip + 1);
1985                         ip += 2;
1986                         child_frame.runtime_method = rtm->data_items [token];
1987                         sp->data.p = vt_sp;
1988                         child_frame.retval = sp;
1989
1990                         /* decrement by the actual number of args */
1991                         sp -= child_frame.runtime_method->param_count + 1;
1992                         child_frame.stack_args = sp;
1993                         this_arg = sp->data.p;
1994                         if (!this_arg)
1995                                 THROW_EX (mono_get_exception_null_reference(), ip - 2);
1996                         child_frame.runtime_method = get_virtual_method (context->domain, child_frame.runtime_method, this_arg);
1997
1998                         MonoClass *this_class = this_arg->vtable->klass;
1999                         if (this_class->valuetype && child_frame.runtime_method->method->klass->valuetype) {
2000                                 /* unbox */
2001                                 gpointer *unboxed = mono_object_unbox (this_arg);
2002                                 sp [0].data.p = unboxed;
2003                         }
2004
2005                         ves_exec_method_with_context (&child_frame, context);
2006
2007                         context->current_frame = frame;
2008
2009                         if (child_frame.ex) {
2010                                 /*
2011                                  * An exception occurred, need to run finally, fault and catch handlers..
2012                                  */
2013                                 frame->ex = child_frame.ex;
2014                                 if (context->search_for_handler) {
2015                                         context->search_for_handler = 0;
2016                                         goto handle_exception;
2017                                 }
2018                                 goto handle_finally;
2019                         }
2020
2021                         /* need to handle typedbyref ... */
2022                         *sp = *endsp;
2023                         sp++;
2024                         MINT_IN_BREAK;
2025                 }
2026                 MINT_IN_CASE(MINT_VCALLVIRT) {
2027                         MonoObject *this_arg;
2028                         guint32 token;
2029
2030                         frame->ip = ip;
2031
2032                         token = * (unsigned short *)(ip + 1);
2033                         ip += 2;
2034                         child_frame.runtime_method = rtm->data_items [token];
2035                         sp->data.p = vt_sp;
2036                         child_frame.retval = sp;
2037
2038                         /* decrement by the actual number of args */
2039                         sp -= child_frame.runtime_method->param_count + 1;
2040                         child_frame.stack_args = sp;
2041                         this_arg = sp->data.p;
2042                         if (!this_arg)
2043                                 THROW_EX (mono_get_exception_null_reference(), ip - 2);
2044                         child_frame.runtime_method = get_virtual_method (context->domain, child_frame.runtime_method, this_arg);
2045
2046                         MonoClass *this_class = this_arg->vtable->klass;
2047                         if (this_class->valuetype && child_frame.runtime_method->method->klass->valuetype) {
2048                                 gpointer *unboxed = mono_object_unbox (this_arg);
2049                                 sp [0].data.p = unboxed;
2050                         }
2051
2052                         ves_exec_method_with_context (&child_frame, context);
2053
2054                         context->current_frame = frame;
2055
2056                         if (child_frame.ex) {
2057                                 /*
2058                                  * An exception occurred, need to run finally, fault and catch handlers..
2059                                  */
2060                                 frame->ex = child_frame.ex;
2061                                 if (context->search_for_handler) {
2062                                         context->search_for_handler = 0;
2063                                         goto handle_exception;
2064                                 }
2065                                 goto handle_finally;
2066                         }
2067                         MINT_IN_BREAK;
2068                 }
2069                 MINT_IN_CASE(MINT_CALLRUN)
2070                         ves_runtime_method (frame, context);
2071                         if (frame->ex) {
2072                                 rtm = NULL;
2073                                 goto handle_exception;
2074                         }
2075                         goto exit_frame;
2076                 MINT_IN_CASE(MINT_RET)
2077                         --sp;
2078                         *frame->retval = *sp;
2079                         if (sp > frame->stack)
2080                                 g_warning ("ret: more values on stack: %d", sp-frame->stack);
2081                         goto exit_frame;
2082                 MINT_IN_CASE(MINT_RET_VOID)
2083                         if (sp > frame->stack)
2084                                 g_warning ("ret.void: more values on stack: %d", sp-frame->stack);
2085                         goto exit_frame;
2086                 MINT_IN_CASE(MINT_RET_VT)
2087                         i32 = READ32(ip + 1);
2088                         --sp;
2089                         memcpy(frame->retval->data.p, sp->data.p, i32);
2090                         if (sp > frame->stack)
2091                                 g_warning ("ret.vt: more values on stack: %d", sp-frame->stack);
2092                         goto exit_frame;
2093                 MINT_IN_CASE(MINT_BR_S)
2094                         ip += (short) *(ip + 1);
2095                         MINT_IN_BREAK;
2096                 MINT_IN_CASE(MINT_BR)
2097                         ip += (gint32) READ32(ip + 1);
2098                         MINT_IN_BREAK;
2099 #define ZEROP_S(datamem, op) \
2100         --sp; \
2101         if (sp->data.datamem op 0) \
2102                 ip += * (gint16 *)(ip + 1); \
2103         else \
2104                 ip += 2;
2105
2106 #define ZEROP(datamem, op) \
2107         --sp; \
2108         if (sp->data.datamem op 0) \
2109                 ip += READ32(ip + 1); \
2110         else \
2111                 ip += 3;
2112
2113                 MINT_IN_CASE(MINT_BRFALSE_I4_S)
2114                         ZEROP_S(i, ==);
2115                         MINT_IN_BREAK;
2116                 MINT_IN_CASE(MINT_BRFALSE_I8_S)
2117                         ZEROP_S(l, ==);
2118                         MINT_IN_BREAK;
2119                 MINT_IN_CASE(MINT_BRFALSE_R8_S)
2120                         ZEROP_S(f, ==);
2121                         MINT_IN_BREAK;
2122                 MINT_IN_CASE(MINT_BRFALSE_I4)
2123                         ZEROP(i, ==);
2124                         MINT_IN_BREAK;
2125                 MINT_IN_CASE(MINT_BRFALSE_I8)
2126                         ZEROP(l, ==);
2127                         MINT_IN_BREAK;
2128                 MINT_IN_CASE(MINT_BRFALSE_R8)
2129                         ZEROP_S(f, ==);
2130                         MINT_IN_BREAK;
2131                 MINT_IN_CASE(MINT_BRTRUE_I4_S)
2132                         ZEROP_S(i, !=);
2133                         MINT_IN_BREAK;
2134                 MINT_IN_CASE(MINT_BRTRUE_I8_S)
2135                         ZEROP_S(l, !=);
2136                         MINT_IN_BREAK;
2137                 MINT_IN_CASE(MINT_BRTRUE_R8_S)
2138                         ZEROP_S(f, !=);
2139                         MINT_IN_BREAK;
2140                 MINT_IN_CASE(MINT_BRTRUE_I4)
2141                         ZEROP(i, !=);
2142                         MINT_IN_BREAK;
2143                 MINT_IN_CASE(MINT_BRTRUE_I8)
2144                         ZEROP(l, !=);
2145                         MINT_IN_BREAK;
2146                 MINT_IN_CASE(MINT_BRTRUE_R8)
2147                         ZEROP(f, !=);
2148                         MINT_IN_BREAK;
2149 #define CONDBR_S(cond) \
2150         sp -= 2; \
2151         if (cond) \
2152                 ip += * (gint16 *)(ip + 1); \
2153         else \
2154                 ip += 2;
2155 #define BRELOP_S(datamem, op) \
2156         CONDBR_S(sp[0].data.datamem op sp[1].data.datamem)
2157
2158 #define CONDBR(cond) \
2159         sp -= 2; \
2160         if (cond) \
2161                 ip += READ32(ip + 1); \
2162         else \
2163                 ip += 3;
2164
2165 #define BRELOP(datamem, op) \
2166         CONDBR(sp[0].data.datamem op sp[1].data.datamem)
2167
2168                 MINT_IN_CASE(MINT_BEQ_I4_S)
2169                         BRELOP_S(i, ==)
2170                         MINT_IN_BREAK;
2171                 MINT_IN_CASE(MINT_BEQ_I8_S)
2172                         BRELOP_S(l, ==)
2173                         MINT_IN_BREAK;
2174                 MINT_IN_CASE(MINT_BEQ_R8_S)
2175                         CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f == sp[1].data.f)
2176                         MINT_IN_BREAK;
2177                 MINT_IN_CASE(MINT_BEQ_I4)
2178                         BRELOP(i, ==)
2179                         MINT_IN_BREAK;
2180                 MINT_IN_CASE(MINT_BEQ_I8)
2181                         BRELOP(l, ==)
2182                         MINT_IN_BREAK;
2183                 MINT_IN_CASE(MINT_BEQ_R8)
2184                         CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f == sp[1].data.f)
2185                         MINT_IN_BREAK;
2186                 MINT_IN_CASE(MINT_BGE_I4_S)
2187                         BRELOP_S(i, >=)
2188                         MINT_IN_BREAK;
2189                 MINT_IN_CASE(MINT_BGE_I8_S)
2190                         BRELOP_S(l, >=)
2191                         MINT_IN_BREAK;
2192                 MINT_IN_CASE(MINT_BGE_R8_S)
2193                         CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f >= sp[1].data.f)
2194                         MINT_IN_BREAK;
2195                 MINT_IN_CASE(MINT_BGE_I4)
2196                         BRELOP(i, >=)
2197                         MINT_IN_BREAK;
2198                 MINT_IN_CASE(MINT_BGE_I8)
2199                         BRELOP(l, >=)
2200                         MINT_IN_BREAK;
2201                 MINT_IN_CASE(MINT_BGE_R8)
2202                         CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f >= sp[1].data.f)
2203                         MINT_IN_BREAK;
2204                 MINT_IN_CASE(MINT_BGT_I4_S)
2205                         BRELOP_S(i, >)
2206                         MINT_IN_BREAK;
2207                 MINT_IN_CASE(MINT_BGT_I8_S)
2208                         BRELOP_S(l, >)
2209                         MINT_IN_BREAK;
2210                 MINT_IN_CASE(MINT_BGT_R8_S)
2211                         CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f > sp[1].data.f)
2212                         MINT_IN_BREAK;
2213                 MINT_IN_CASE(MINT_BGT_I4)
2214                         BRELOP(i, >)
2215                         MINT_IN_BREAK;
2216                 MINT_IN_CASE(MINT_BGT_I8)
2217                         BRELOP(l, >)
2218                         MINT_IN_BREAK;
2219                 MINT_IN_CASE(MINT_BGT_R8)
2220                         CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f > sp[1].data.f)
2221                         MINT_IN_BREAK;
2222                 MINT_IN_CASE(MINT_BLT_I4_S)
2223                         BRELOP_S(i, <)
2224                         MINT_IN_BREAK;
2225                 MINT_IN_CASE(MINT_BLT_I8_S)
2226                         BRELOP_S(l, <)
2227                         MINT_IN_BREAK;
2228                 MINT_IN_CASE(MINT_BLT_R8_S)
2229                         CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f < sp[1].data.f)
2230                         MINT_IN_BREAK;
2231                 MINT_IN_CASE(MINT_BLT_I4)
2232                         BRELOP(i, <)
2233                         MINT_IN_BREAK;
2234                 MINT_IN_CASE(MINT_BLT_I8)
2235                         BRELOP(l, <)
2236                         MINT_IN_BREAK;
2237                 MINT_IN_CASE(MINT_BLT_R8)
2238                         CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f < sp[1].data.f)
2239                         MINT_IN_BREAK;
2240                 MINT_IN_CASE(MINT_BLE_I4_S)
2241                         BRELOP_S(i, <=)
2242                         MINT_IN_BREAK;
2243                 MINT_IN_CASE(MINT_BLE_I8_S)
2244                         BRELOP_S(l, <=)
2245                         MINT_IN_BREAK;
2246                 MINT_IN_CASE(MINT_BLE_R8_S)
2247                         CONDBR_S(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f <= sp[1].data.f)
2248                         MINT_IN_BREAK;
2249                 MINT_IN_CASE(MINT_BLE_I4)
2250                         BRELOP(i, <=)
2251                         MINT_IN_BREAK;
2252                 MINT_IN_CASE(MINT_BLE_I8)
2253                         BRELOP(l, <=)
2254                         MINT_IN_BREAK;
2255                 MINT_IN_CASE(MINT_BLE_R8)
2256                         CONDBR(!isunordered (sp [0].data.f, sp [1].data.f) && sp[0].data.f <= sp[1].data.f)
2257                         MINT_IN_BREAK;
2258                 MINT_IN_CASE(MINT_BNE_UN_I4_S)
2259                         BRELOP_S(i, !=)
2260                         MINT_IN_BREAK;
2261                 MINT_IN_CASE(MINT_BNE_UN_I8_S)
2262                         BRELOP_S(l, !=)
2263                         MINT_IN_BREAK;
2264                 MINT_IN_CASE(MINT_BNE_UN_R8_S)
2265                         CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f != sp[1].data.f)
2266                         MINT_IN_BREAK;
2267                 MINT_IN_CASE(MINT_BNE_UN_I4)
2268                         BRELOP(i, !=)
2269                         MINT_IN_BREAK;
2270                 MINT_IN_CASE(MINT_BNE_UN_I8)
2271                         BRELOP(l, !=)
2272                         MINT_IN_BREAK;
2273                 MINT_IN_CASE(MINT_BNE_UN_R8)
2274                         CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f != sp[1].data.f)
2275                         MINT_IN_BREAK;
2276
2277 #define BRELOP_S_CAST(datamem, op, type) \
2278         sp -= 2; \
2279         if ((type) sp[0].data.datamem op (type) sp[1].data.datamem) \
2280                 ip += * (gint16 *)(ip + 1); \
2281         else \
2282                 ip += 2;
2283
2284 #define BRELOP_CAST(datamem, op, type) \
2285         sp -= 2; \
2286         if ((type) sp[0].data.datamem op (type) sp[1].data.datamem) \
2287                 ip += READ32(ip + 1); \
2288         else \
2289                 ip += 3;
2290
2291                 MINT_IN_CASE(MINT_BGE_UN_I4_S)
2292                         BRELOP_S_CAST(i, >=, guint32);
2293                         MINT_IN_BREAK;
2294                 MINT_IN_CASE(MINT_BGE_UN_I8_S)
2295                         BRELOP_S_CAST(l, >=, guint64);
2296                         MINT_IN_BREAK;
2297                 MINT_IN_CASE(MINT_BGE_UN_R8_S)
2298                         CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f >= sp[1].data.f)
2299                         MINT_IN_BREAK;
2300                 MINT_IN_CASE(MINT_BGE_UN_I4)
2301                         BRELOP_CAST(i, >=, guint32);
2302                         MINT_IN_BREAK;
2303                 MINT_IN_CASE(MINT_BGE_UN_I8)
2304                         BRELOP_CAST(l, >=, guint64);
2305                         MINT_IN_BREAK;
2306                 MINT_IN_CASE(MINT_BGE_UN_R8)
2307                         CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f >= sp[1].data.f)
2308                         MINT_IN_BREAK;
2309                 MINT_IN_CASE(MINT_BGT_UN_I4_S)
2310                         BRELOP_S_CAST(i, >, guint32);
2311                         MINT_IN_BREAK;
2312                 MINT_IN_CASE(MINT_BGT_UN_I8_S)
2313                         BRELOP_S_CAST(l, >, guint64);
2314                         MINT_IN_BREAK;
2315                 MINT_IN_CASE(MINT_BGT_UN_R8_S)
2316                         CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f > sp[1].data.f)
2317                         MINT_IN_BREAK;
2318                 MINT_IN_CASE(MINT_BGT_UN_I4)
2319                         BRELOP_CAST(i, >, guint32);
2320                         MINT_IN_BREAK;
2321                 MINT_IN_CASE(MINT_BGT_UN_I8)
2322                         BRELOP_CAST(l, >, guint64);
2323                         MINT_IN_BREAK;
2324                 MINT_IN_CASE(MINT_BGT_UN_R8)
2325                         CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f > sp[1].data.f)
2326                         MINT_IN_BREAK;
2327                 MINT_IN_CASE(MINT_BLE_UN_I4_S)
2328                         BRELOP_S_CAST(i, <=, guint32);
2329                         MINT_IN_BREAK;
2330                 MINT_IN_CASE(MINT_BLE_UN_I8_S)
2331                         BRELOP_S_CAST(l, <=, guint64);
2332                         MINT_IN_BREAK;
2333                 MINT_IN_CASE(MINT_BLE_UN_R8_S)
2334                         CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f <= sp[1].data.f)
2335                         MINT_IN_BREAK;
2336                 MINT_IN_CASE(MINT_BLE_UN_I4)
2337                         BRELOP_CAST(i, <=, guint32);
2338                         MINT_IN_BREAK;
2339                 MINT_IN_CASE(MINT_BLE_UN_I8)
2340                         BRELOP_CAST(l, <=, guint64);
2341                         MINT_IN_BREAK;
2342                 MINT_IN_CASE(MINT_BLE_UN_R8)
2343                         CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f <= sp[1].data.f)
2344                         MINT_IN_BREAK;
2345                 MINT_IN_CASE(MINT_BLT_UN_I4_S)
2346                         BRELOP_S_CAST(i, <, guint32);
2347                         MINT_IN_BREAK;
2348                 MINT_IN_CASE(MINT_BLT_UN_I8_S)
2349                         BRELOP_S_CAST(l, <, guint64);
2350                         MINT_IN_BREAK;
2351                 MINT_IN_CASE(MINT_BLT_UN_R8_S)
2352                         CONDBR_S(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f < sp[1].data.f)
2353                         MINT_IN_BREAK;
2354                 MINT_IN_CASE(MINT_BLT_UN_I4)
2355                         BRELOP_CAST(i, <, guint32);
2356                         MINT_IN_BREAK;
2357                 MINT_IN_CASE(MINT_BLT_UN_I8)
2358                         BRELOP_CAST(l, <, guint64);
2359                         MINT_IN_BREAK;
2360                 MINT_IN_CASE(MINT_BLT_UN_R8)
2361                         CONDBR(isunordered (sp [0].data.f, sp [1].data.f) || sp[0].data.f < sp[1].data.f)
2362                         MINT_IN_BREAK;
2363                 MINT_IN_CASE(MINT_SWITCH) {
2364                         guint32 n;
2365                         const unsigned short *st;
2366                         ++ip;
2367                         n = READ32 (ip);
2368                         ip += 2;
2369                         st = ip + 2 * n;
2370                         --sp;
2371                         if ((guint32)sp->data.i < n) {
2372                                 gint offset;
2373                                 ip += 2 * (guint32)sp->data.i;
2374                                 offset = READ32 (ip);
2375                                 ip = st + offset;
2376                         } else {
2377                                 ip = st;
2378                         }
2379                         MINT_IN_BREAK;
2380                 }
2381                 MINT_IN_CASE(MINT_LDIND_I1)
2382                         ++ip;
2383                         sp[-1].data.i = *(gint8*)sp[-1].data.p;
2384                         MINT_IN_BREAK;
2385                 MINT_IN_CASE(MINT_LDIND_U1)
2386                         ++ip;
2387                         sp[-1].data.i = *(guint8*)sp[-1].data.p;
2388                         MINT_IN_BREAK;
2389                 MINT_IN_CASE(MINT_LDIND_I2)
2390                         ++ip;
2391                         sp[-1].data.i = *(gint16*)sp[-1].data.p;
2392                         MINT_IN_BREAK;
2393                 MINT_IN_CASE(MINT_LDIND_U2)
2394                         ++ip;
2395                         sp[-1].data.i = *(guint16*)sp[-1].data.p;
2396                         MINT_IN_BREAK;
2397                 MINT_IN_CASE(MINT_LDIND_I4) /* Fall through */
2398                 MINT_IN_CASE(MINT_LDIND_U4)
2399                         ++ip;
2400                         sp[-1].data.i = *(gint32*)sp[-1].data.p;
2401                         MINT_IN_BREAK;
2402                 MINT_IN_CASE(MINT_LDIND_I8)
2403                         ++ip;
2404                         sp[-1].data.l = *(gint64*)sp[-1].data.p;
2405                         MINT_IN_BREAK;
2406                 MINT_IN_CASE(MINT_LDIND_I) {
2407                         guint16 offset = * (guint16 *)(ip + 1);
2408                         sp[-1 - offset].data.p = *(gpointer*)sp[-1 - offset].data.p;
2409                         ip += 2;
2410                         MINT_IN_BREAK;
2411                 }
2412                 MINT_IN_CASE(MINT_LDIND_R4)
2413                         ++ip;
2414                         sp[-1].data.f = *(gfloat*)sp[-1].data.p;
2415                         MINT_IN_BREAK;
2416                 MINT_IN_CASE(MINT_LDIND_R8)
2417                         ++ip;
2418                         sp[-1].data.f = *(gdouble*)sp[-1].data.p;
2419                         MINT_IN_BREAK;
2420                 MINT_IN_CASE(MINT_LDIND_REF)
2421                         ++ip;
2422                         sp[-1].data.p = *(gpointer*)sp[-1].data.p;
2423                         MINT_IN_BREAK;
2424                 MINT_IN_CASE(MINT_STIND_REF)
2425                         ++ip;
2426                         sp -= 2;
2427                         * (gpointer *) sp->data.p = sp[1].data.p;
2428                         MINT_IN_BREAK;
2429                 MINT_IN_CASE(MINT_STIND_I1)
2430                         ++ip;
2431                         sp -= 2;
2432                         * (gint8 *) sp->data.p = (gint8)sp[1].data.i;
2433                         MINT_IN_BREAK;
2434                 MINT_IN_CASE(MINT_STIND_I2)
2435                         ++ip;
2436                         sp -= 2;
2437                         * (gint16 *) sp->data.p = (gint16)sp[1].data.i;
2438                         MINT_IN_BREAK;
2439                 MINT_IN_CASE(MINT_STIND_I4)
2440                         ++ip;
2441                         sp -= 2;
2442                         * (gint32 *) sp->data.p = sp[1].data.i;
2443                         MINT_IN_BREAK;
2444                 MINT_IN_CASE(MINT_STIND_I)
2445                         ++ip;
2446                         sp -= 2;
2447                         * (mono_i *) sp->data.p = (mono_i)sp[1].data.p;
2448                         MINT_IN_BREAK;
2449                 MINT_IN_CASE(MINT_STIND_I8)
2450                         ++ip;
2451                         sp -= 2;
2452                         * (gint64 *) sp->data.p = sp[1].data.l;
2453                         MINT_IN_BREAK;
2454                 MINT_IN_CASE(MINT_STIND_R4)
2455                         ++ip;
2456                         sp -= 2;
2457                         * (float *) sp->data.p = (gfloat)sp[1].data.f;
2458                         MINT_IN_BREAK;
2459                 MINT_IN_CASE(MINT_STIND_R8)
2460                         ++ip;
2461                         sp -= 2;
2462                         * (double *) sp->data.p = sp[1].data.f;
2463                         MINT_IN_BREAK;
2464 #define BINOP(datamem, op) \
2465         --sp; \
2466         sp [-1].data.datamem = sp [-1].data.datamem op sp [0].data.datamem; \
2467         ++ip;
2468                 MINT_IN_CASE(MINT_ADD_I4)
2469                         BINOP(i, +);
2470                         MINT_IN_BREAK;
2471                 MINT_IN_CASE(MINT_ADD_I8)
2472                         BINOP(l, +);
2473                         MINT_IN_BREAK;
2474                 MINT_IN_CASE(MINT_ADD_R8)
2475                         BINOP(f, +);
2476                         MINT_IN_BREAK;
2477                 MINT_IN_CASE(MINT_ADD1_I4)
2478                         ++sp [-1].data.i;
2479                         ++ip;
2480                         MINT_IN_BREAK;
2481                 MINT_IN_CASE(MINT_SUB_I4)
2482                         BINOP(i, -);
2483                         MINT_IN_BREAK;
2484                 MINT_IN_CASE(MINT_SUB_I8)
2485                         BINOP(l, -);
2486                         MINT_IN_BREAK;
2487                 MINT_IN_CASE(MINT_SUB_R8)
2488                         BINOP(f, -);
2489                         MINT_IN_BREAK;
2490                 MINT_IN_CASE(MINT_SUB1_I4)
2491                         --sp [-1].data.i;
2492                         ++ip;
2493                         MINT_IN_BREAK;
2494                 MINT_IN_CASE(MINT_MUL_I4)
2495                         BINOP(i, *);
2496                         MINT_IN_BREAK;
2497                 MINT_IN_CASE(MINT_MUL_I8)
2498                         BINOP(l, *);
2499                         MINT_IN_BREAK;
2500                 MINT_IN_CASE(MINT_MUL_R8)
2501                         BINOP(f, *);
2502                         MINT_IN_BREAK;
2503                 MINT_IN_CASE(MINT_DIV_I4)
2504                         if (sp [-1].data.i == 0)
2505                                 THROW_EX (mono_get_exception_divide_by_zero (), ip);
2506                         if (sp [-1].data.i == (-1))
2507                                 THROW_EX (mono_get_exception_overflow (), ip);
2508                         BINOP(i, /);
2509                         MINT_IN_BREAK;
2510                 MINT_IN_CASE(MINT_DIV_I8)
2511                         if (sp [-1].data.l == 0)
2512                                 THROW_EX (mono_get_exception_divide_by_zero (), ip);
2513                         if (sp [-1].data.l == (-1))
2514                                 THROW_EX (mono_get_exception_overflow (), ip);
2515                         BINOP(l, /);
2516                         MINT_IN_BREAK;
2517                 MINT_IN_CASE(MINT_DIV_R8)
2518                         BINOP(f, /);
2519                         MINT_IN_BREAK;
2520
2521 #define BINOP_CAST(datamem, op, type) \
2522         --sp; \
2523         sp [-1].data.datamem = (type)sp [-1].data.datamem op (type)sp [0].data.datamem; \
2524         ++ip;
2525                 MINT_IN_CASE(MINT_DIV_UN_I4)
2526                         if (sp [-1].data.i == 0)
2527                                 THROW_EX (mono_get_exception_divide_by_zero (), ip);
2528                         BINOP_CAST(i, /, guint32);
2529                         MINT_IN_BREAK;
2530                 MINT_IN_CASE(MINT_DIV_UN_I8)
2531                         if (sp [-1].data.l == 0)
2532                                 THROW_EX (mono_get_exception_divide_by_zero (), ip);
2533                         BINOP_CAST(l, /, guint64);
2534                         MINT_IN_BREAK;
2535                 MINT_IN_CASE(MINT_REM_I4)
2536                         if (sp [-1].data.i == 0)
2537                                 THROW_EX (mono_get_exception_divide_by_zero (), ip);
2538                         if (sp [-1].data.i == (-1))
2539                                 THROW_EX (mono_get_exception_overflow (), ip);
2540                         BINOP(i, %);
2541                         MINT_IN_BREAK;
2542                 MINT_IN_CASE(MINT_REM_I8)
2543                         if (sp [-1].data.l == 0)
2544                                 THROW_EX (mono_get_exception_divide_by_zero (), ip);
2545                         if (sp [-1].data.l == (-1))
2546                                 THROW_EX (mono_get_exception_overflow (), ip);
2547                         BINOP(l, %);
2548                         MINT_IN_BREAK;
2549                 MINT_IN_CASE(MINT_REM_R8)
2550                         /* FIXME: what do we actually do here? */
2551                         --sp;
2552                         sp [-1].data.f = fmod (sp [-1].data.f, sp [0].data.f);
2553                         ++ip;
2554                         MINT_IN_BREAK;
2555                 MINT_IN_CASE(MINT_REM_UN_I4)
2556                         if (sp [-1].data.i == 0)
2557                                 THROW_EX (mono_get_exception_divide_by_zero (), ip);
2558                         BINOP_CAST(i, %, guint32);
2559                         MINT_IN_BREAK;
2560                 MINT_IN_CASE(MINT_REM_UN_I8)
2561                         if (sp [-1].data.l == 0)
2562                                 THROW_EX (mono_get_exception_divide_by_zero (), ip);
2563                         BINOP_CAST(l, %, guint64);
2564                         MINT_IN_BREAK;
2565                 MINT_IN_CASE(MINT_AND_I4)
2566                         BINOP(i, &);
2567                         MINT_IN_BREAK;
2568                 MINT_IN_CASE(MINT_AND_I8)
2569                         BINOP(l, &);
2570                         MINT_IN_BREAK;
2571                 MINT_IN_CASE(MINT_OR_I4)
2572                         BINOP(i, |);
2573                         MINT_IN_BREAK;
2574                 MINT_IN_CASE(MINT_OR_I8)
2575                         BINOP(l, |);
2576                         MINT_IN_BREAK;
2577                 MINT_IN_CASE(MINT_XOR_I4)
2578                         BINOP(i, ^);
2579                         MINT_IN_BREAK;
2580                 MINT_IN_CASE(MINT_XOR_I8)
2581                         BINOP(l, ^);
2582                         MINT_IN_BREAK;
2583
2584 #define SHIFTOP(datamem, op) \
2585         --sp; \
2586         sp [-1].data.datamem = sp [-1].data.datamem op sp [0].data.i; \
2587         ++ip;
2588
2589                 MINT_IN_CASE(MINT_SHL_I4)
2590                         SHIFTOP(i, <<);
2591                         MINT_IN_BREAK;
2592                 MINT_IN_CASE(MINT_SHL_I8)
2593                         SHIFTOP(l, <<);
2594                         MINT_IN_BREAK;
2595                 MINT_IN_CASE(MINT_SHR_I4)
2596                         SHIFTOP(i, >>);
2597                         MINT_IN_BREAK;
2598                 MINT_IN_CASE(MINT_SHR_I8)
2599                         SHIFTOP(l, >>);
2600                         MINT_IN_BREAK;
2601                 MINT_IN_CASE(MINT_SHR_UN_I4)
2602                         --sp;
2603                         sp [-1].data.i = (guint32)sp [-1].data.i >> sp [0].data.i;
2604                         ++ip;
2605                         MINT_IN_BREAK;
2606                 MINT_IN_CASE(MINT_SHR_UN_I8)
2607                         --sp;
2608                         sp [-1].data.l = (guint64)sp [-1].data.l >> sp [0].data.i;
2609                         ++ip;
2610                         MINT_IN_BREAK;
2611                 MINT_IN_CASE(MINT_NEG_I4)
2612                         sp [-1].data.i = - sp [-1].data.i;
2613                         ++ip;
2614                         MINT_IN_BREAK;
2615                 MINT_IN_CASE(MINT_NEG_I8)
2616                         sp [-1].data.l = - sp [-1].data.l;
2617                         ++ip;
2618                         MINT_IN_BREAK;
2619                 MINT_IN_CASE(MINT_NEG_R8)
2620                         sp [-1].data.f = - sp [-1].data.f;
2621                         ++ip;
2622                         MINT_IN_BREAK;
2623                 MINT_IN_CASE(MINT_NOT_I4)
2624                         sp [-1].data.i = ~ sp [-1].data.i;
2625                         ++ip;
2626                         MINT_IN_BREAK;
2627                 MINT_IN_CASE(MINT_NOT_I8)
2628                         sp [-1].data.l = ~ sp [-1].data.l;
2629                         ++ip;
2630                         MINT_IN_BREAK;
2631                 MINT_IN_CASE(MINT_CONV_I1_I4)
2632                         sp [-1].data.i = (gint8)sp [-1].data.i;
2633                         ++ip;
2634                         MINT_IN_BREAK;
2635                 MINT_IN_CASE(MINT_CONV_I1_I8)
2636                         sp [-1].data.i = (gint8)sp [-1].data.l;
2637                         ++ip;
2638                         MINT_IN_BREAK;
2639                 MINT_IN_CASE(MINT_CONV_I1_R8)
2640                         sp [-1].data.i = (gint8)sp [-1].data.f;
2641                         ++ip;
2642                         MINT_IN_BREAK;
2643                 MINT_IN_CASE(MINT_CONV_U1_I4)
2644                         sp [-1].data.i = (guint8)sp [-1].data.i;
2645                         ++ip;
2646                         MINT_IN_BREAK;
2647                 MINT_IN_CASE(MINT_CONV_U1_I8)
2648                         sp [-1].data.i = (guint8)sp [-1].data.l;
2649                         ++ip;
2650                         MINT_IN_BREAK;
2651                 MINT_IN_CASE(MINT_CONV_U1_R8)
2652                         sp [-1].data.i = (guint8)sp [-1].data.f;
2653                         ++ip;
2654                         MINT_IN_BREAK;
2655                 MINT_IN_CASE(MINT_CONV_I2_I4)
2656                         sp [-1].data.i = (gint16)sp [-1].data.i;
2657                         ++ip;
2658                         MINT_IN_BREAK;
2659                 MINT_IN_CASE(MINT_CONV_I2_I8)
2660                         sp [-1].data.i = (gint16)sp [-1].data.l;
2661                         ++ip;
2662                         MINT_IN_BREAK;
2663                 MINT_IN_CASE(MINT_CONV_I2_R8)
2664                         sp [-1].data.i = (gint16)sp [-1].data.f;
2665                         ++ip;
2666                         MINT_IN_BREAK;
2667                 MINT_IN_CASE(MINT_CONV_U2_I4)
2668                         sp [-1].data.i = (guint16)sp [-1].data.i;
2669                         ++ip;
2670                         MINT_IN_BREAK;
2671                 MINT_IN_CASE(MINT_CONV_U2_I8)
2672                         sp [-1].data.i = (guint16)sp [-1].data.l;
2673                         ++ip;
2674                         MINT_IN_BREAK;
2675                 MINT_IN_CASE(MINT_CONV_U2_R8)
2676                         sp [-1].data.i = (guint16)sp [-1].data.f;
2677                         ++ip;
2678                         MINT_IN_BREAK;
2679                 MINT_IN_CASE(MINT_CONV_I4_R8)
2680                         sp [-1].data.i = (gint32)sp [-1].data.f;
2681                         ++ip;
2682                         MINT_IN_BREAK;
2683                 MINT_IN_CASE(MINT_CONV_U4_I8)
2684                 MINT_IN_CASE(MINT_CONV_I4_I8)
2685                         sp [-1].data.i = (gint32)sp [-1].data.l;
2686                         ++ip;
2687                         MINT_IN_BREAK;
2688                 MINT_IN_CASE(MINT_CONV_I4_I8_SP)
2689                         sp [-2].data.i = (gint32)sp [-2].data.l;
2690                         ++ip;
2691                         MINT_IN_BREAK;
2692                 MINT_IN_CASE(MINT_CONV_U4_R8)
2693                         sp [-1].data.i = (guint32)sp [-1].data.f;
2694                         ++ip;
2695                         MINT_IN_BREAK;
2696                 MINT_IN_CASE(MINT_CONV_I8_I4)
2697                         sp [-1].data.l = sp [-1].data.i;
2698                         ++ip;
2699                         MINT_IN_BREAK;
2700                 MINT_IN_CASE(MINT_CONV_I8_I4_SP)
2701                         sp [-2].data.l = sp [-2].data.i;
2702                         ++ip;
2703                         MINT_IN_BREAK;
2704                 MINT_IN_CASE(MINT_CONV_I8_U4)
2705                         sp [-1].data.l = (guint32)sp [-1].data.i;
2706                         ++ip;
2707                         MINT_IN_BREAK;
2708                 MINT_IN_CASE(MINT_CONV_I8_R8)
2709                         sp [-1].data.l = (gint64)sp [-1].data.f;
2710                         ++ip;
2711                         MINT_IN_BREAK;
2712                 MINT_IN_CASE(MINT_CONV_R4_I4)
2713                         sp [-1].data.f = (float)sp [-1].data.i;
2714                         ++ip;
2715                         MINT_IN_BREAK;
2716                 MINT_IN_CASE(MINT_CONV_R4_I8)
2717                         sp [-1].data.f = (float)sp [-1].data.l;
2718                         ++ip;
2719                         MINT_IN_BREAK;
2720                 MINT_IN_CASE(MINT_CONV_R4_R8)
2721                         sp [-1].data.f = (float)sp [-1].data.f;
2722                         ++ip;
2723                         MINT_IN_BREAK;
2724                 MINT_IN_CASE(MINT_CONV_R8_I4)
2725                         sp [-1].data.f = (double)sp [-1].data.i;
2726                         ++ip;
2727                         MINT_IN_BREAK;
2728                 MINT_IN_CASE(MINT_CONV_R8_I8)
2729                         sp [-1].data.f = (double)sp [-1].data.l;
2730                         ++ip;
2731                         MINT_IN_BREAK;
2732                 MINT_IN_CASE(MINT_CONV_U8_I4)
2733                         sp [-1].data.l = sp [-1].data.i & 0xffffffff;
2734                         ++ip;
2735                         MINT_IN_BREAK;
2736                 MINT_IN_CASE(MINT_CONV_U8_R8)
2737                         sp [-1].data.l = (guint64)sp [-1].data.f;
2738                         ++ip;
2739                         MINT_IN_BREAK;
2740                 MINT_IN_CASE(MINT_CPOBJ) {
2741                         c = rtm->data_items[* (guint16 *)(ip + 1)];
2742                         g_assert (c->byval_arg.type == MONO_TYPE_VALUETYPE);
2743                         stackval_from_data (&c->byval_arg, &sp [-2], sp [-1].data.p, FALSE);
2744                         ip += 2;
2745                         sp -= 2;
2746                         MINT_IN_BREAK;
2747                 }
2748                 MINT_IN_CASE(MINT_LDOBJ) {
2749                         void *p;
2750                         c = rtm->data_items[* (guint16 *)(ip + 1)];
2751                         ip += 2;
2752                         p = sp [-1].data.p;
2753                         if (c->byval_arg.type == MONO_TYPE_VALUETYPE && !c->enumtype) {
2754                                 int size = mono_class_value_size (c, NULL);
2755                                 sp [-1].data.p = vt_sp;
2756                                 vt_sp += (size + 7) & ~7;
2757                         }
2758                         stackval_from_data (&c->byval_arg, &sp [-1], p, FALSE);
2759                         MINT_IN_BREAK;
2760                 }
2761                 MINT_IN_CASE(MINT_LDSTR)
2762                         sp->data.p = rtm->data_items [* (guint16 *)(ip + 1)];
2763                         ++sp;
2764                         ip += 2;
2765                         MINT_IN_BREAK;
2766                 MINT_IN_CASE(MINT_NEWOBJ) {
2767                         MonoClass *newobj_class;
2768                         MonoMethodSignature *csig;
2769                         stackval valuetype_this;
2770                         guint32 token;
2771                         stackval retval;
2772
2773                         frame->ip = ip;
2774
2775                         token = * (guint16 *)(ip + 1);
2776                         ip += 2;
2777
2778                         child_frame.ip = NULL;
2779                         child_frame.ex = NULL;
2780
2781                         child_frame.runtime_method = rtm->data_items [token];
2782                         csig = mono_method_signature (child_frame.runtime_method->method);
2783                         newobj_class = child_frame.runtime_method->method->klass;
2784                         /*if (profiling_classes) {
2785                                 guint count = GPOINTER_TO_UINT (g_hash_table_lookup (profiling_classes, newobj_class));
2786                                 count++;
2787                                 g_hash_table_insert (profiling_classes, newobj_class, GUINT_TO_POINTER (count));
2788                         }*/
2789
2790                         if (newobj_class->parent == mono_defaults.array_class) {
2791                                 sp -= csig->param_count;
2792                                 child_frame.stack_args = sp;
2793                                 o = ves_array_create (&child_frame, context->domain, newobj_class, csig, sp);
2794                                 if (child_frame.ex)
2795                                         THROW_EX (child_frame.ex, ip);
2796                                 goto array_constructed;
2797                         }
2798
2799                         g_assert (csig->hasthis);
2800                         if (csig->param_count) {
2801                                 sp -= csig->param_count;
2802                                 memmove (sp + 1, sp, csig->param_count * sizeof (stackval));
2803                         }
2804                         child_frame.stack_args = sp;
2805
2806                         /*
2807                          * First arg is the object.
2808                          */
2809                         if (newobj_class->valuetype) {
2810                                 MonoType *t = &newobj_class->byval_arg;
2811                                 memset (&valuetype_this, 0, sizeof (stackval));
2812                                 if (!newobj_class->enumtype && (t->type == MONO_TYPE_VALUETYPE || (t->type == MONO_TYPE_GENERICINST && mono_type_generic_inst_is_valuetype (t)))) {
2813                                         sp->data.p = vt_sp;
2814                                         valuetype_this.data.p = vt_sp;
2815                                 } else {
2816                                         sp->data.p = &valuetype_this;
2817                                 }
2818                         } else {
2819                                 if (newobj_class != mono_defaults.string_class) {
2820                                         context->managed_code = 0;
2821                                         o = mono_object_new_checked (context->domain, newobj_class, &error);
2822                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2823                                         context->managed_code = 1;
2824                                         if (*mono_thread_interruption_request_flag ())
2825                                                 mono_thread_interruption_checkpoint ();
2826                                         sp->data.p = o;
2827                                 } else {
2828                                         sp->data.p = NULL;
2829                                         child_frame.retval = &retval;
2830                                 }
2831                         }
2832
2833                         g_assert (csig->call_convention == MONO_CALL_DEFAULT);
2834
2835                         ves_exec_method_with_context (&child_frame, context);
2836
2837                         context->current_frame = frame;
2838
2839                         if (child_frame.ex) {
2840                                 /*
2841                                  * An exception occurred, need to run finally, fault and catch handlers..
2842                                  */
2843                                 frame->ex = child_frame.ex;
2844                                 goto handle_finally;
2845                         }
2846                         /*
2847                          * a constructor returns void, but we need to return the object we created
2848                          */
2849 array_constructed:
2850                         if (newobj_class->valuetype && !newobj_class->enumtype) {
2851                                 *sp = valuetype_this;
2852                         } else if (newobj_class == mono_defaults.string_class) {
2853                                 *sp = retval;
2854                         } else {
2855                                 sp->data.p = o;
2856                         }
2857                         ++sp;
2858                         MINT_IN_BREAK;
2859                 }
2860                 MINT_IN_CASE(MINT_CASTCLASS)
2861                         c = rtm->data_items [*(guint16 *)(ip + 1)];
2862                         if ((o = sp [-1].data.p)) {
2863                                 MonoObject *isinst_obj = mono_object_isinst_checked (o, c, &error);
2864                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2865                                 if (!isinst_obj)
2866                                         THROW_EX (mono_get_exception_invalid_cast (), ip);
2867                         }
2868                         ip += 2;
2869                         MINT_IN_BREAK;
2870                 MINT_IN_CASE(MINT_ISINST)
2871                         c = rtm->data_items [*(guint16 *)(ip + 1)];
2872                         if ((o = sp [-1].data.p)) {
2873                                 MonoObject *isinst_obj = mono_object_isinst_checked (o, c, &error);
2874                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2875                                 if (!isinst_obj)
2876                                         sp [-1].data.p = NULL;
2877                         }
2878                         ip += 2;
2879                         MINT_IN_BREAK;
2880                 MINT_IN_CASE(MINT_CONV_R_UN_I4)
2881                         sp [-1].data.f = (double)(guint32)sp [-1].data.i;
2882                         ++ip;
2883                         MINT_IN_BREAK;
2884                 MINT_IN_CASE(MINT_CONV_R_UN_I8)
2885                         sp [-1].data.f = (double)(guint64)sp [-1].data.l;
2886                         ++ip;
2887                         MINT_IN_BREAK;
2888                 MINT_IN_CASE(MINT_UNBOX)
2889                         c = rtm->data_items[*(guint16 *)(ip + 1)];
2890
2891                         o = sp [-1].data.p;
2892                         if (!o)
2893                                 THROW_EX (mono_get_exception_null_reference (), ip);
2894
2895                         MonoObject *isinst_obj = mono_object_isinst_checked (o, c, &error);
2896                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2897                         if (!(isinst_obj || ((o->vtable->klass->rank == 0) && (o->vtable->klass->element_class == c->element_class))))
2898                                 THROW_EX (mono_get_exception_invalid_cast (), ip);
2899
2900                         sp [-1].data.p = mono_object_unbox (o);
2901                         ip += 2;
2902                         MINT_IN_BREAK;
2903                 MINT_IN_CASE(MINT_THROW)
2904                         --sp;
2905                         frame->ex_handler = NULL;
2906                         if (!sp->data.p)
2907                                 sp->data.p = mono_get_exception_null_reference ();
2908                         THROW_EX ((MonoException *)sp->data.p, ip);
2909                         MINT_IN_BREAK;
2910                 MINT_IN_CASE(MINT_LDFLDA_UNSAFE)
2911                         o = sp [-1].data.p;
2912                         sp[-1].data.p = (char *)o + * (guint16 *)(ip + 1);
2913                         ip += 2;
2914                         MINT_IN_BREAK;
2915                 MINT_IN_CASE(MINT_LDFLDA)
2916                         o = sp [-1].data.p;
2917                         if (!o)
2918                                 THROW_EX (mono_get_exception_null_reference (), ip);
2919                         sp[-1].data.p = (char *)o + * (guint16 *)(ip + 1);
2920                         ip += 2;
2921                         MINT_IN_BREAK;
2922                 MINT_IN_CASE(MINT_CKNULL)
2923                         o = sp [-1].data.p;
2924                         if (!o)
2925                                 THROW_EX (mono_get_exception_null_reference (), ip);
2926                         ++ip;
2927                         MINT_IN_BREAK;
2928
2929 #define LDFLD(datamem, fieldtype) \
2930         o = sp [-1].data.p; \
2931         if (!o) \
2932                 THROW_EX (mono_get_exception_null_reference (), ip); \
2933         sp[-1].data.datamem = * (fieldtype *)((char *)o + * (guint16 *)(ip + 1)) ; \
2934         ip += 2;
2935
2936                 MINT_IN_CASE(MINT_LDFLD_I1) LDFLD(i, gint8); MINT_IN_BREAK;
2937                 MINT_IN_CASE(MINT_LDFLD_U1) LDFLD(i, guint8); MINT_IN_BREAK;
2938                 MINT_IN_CASE(MINT_LDFLD_I2) LDFLD(i, gint16); MINT_IN_BREAK;
2939                 MINT_IN_CASE(MINT_LDFLD_U2) LDFLD(i, guint16); MINT_IN_BREAK;
2940                 MINT_IN_CASE(MINT_LDFLD_I4) LDFLD(i, gint32); MINT_IN_BREAK;
2941                 MINT_IN_CASE(MINT_LDFLD_I8) LDFLD(l, gint64); MINT_IN_BREAK;
2942                 MINT_IN_CASE(MINT_LDFLD_R4) LDFLD(f, float); MINT_IN_BREAK;
2943                 MINT_IN_CASE(MINT_LDFLD_R8) LDFLD(f, double); MINT_IN_BREAK;
2944                 MINT_IN_CASE(MINT_LDFLD_O) LDFLD(p, gpointer); MINT_IN_BREAK;
2945                 MINT_IN_CASE(MINT_LDFLD_P) LDFLD(p, gpointer); MINT_IN_BREAK;
2946
2947                 MINT_IN_CASE(MINT_LDFLD_VT)
2948                         o = sp [-1].data.p;
2949                         if (!o)
2950                                 THROW_EX (mono_get_exception_null_reference (), ip);
2951                         i32 = READ32(ip + 2);
2952                         sp [-1].data.p = vt_sp;
2953                         memcpy(sp [-1].data.p, (char *)o + * (guint16 *)(ip + 1), i32);
2954                         vt_sp += (i32 + 7) & ~7;
2955                         ip += 4;
2956                         MINT_IN_BREAK;
2957
2958                 MINT_IN_CASE(MINT_LDRMFLD) {
2959                         gpointer tmp;
2960                         MonoClassField *field;
2961                         char *addr;
2962
2963                         o = sp [-1].data.p;
2964                         if (!o)
2965                                 THROW_EX (mono_get_exception_null_reference (), ip);
2966                         field = rtm->data_items[* (guint16 *)(ip + 1)];
2967                         ip += 2;
2968                         if (mono_object_is_transparent_proxy (o)) {
2969                                 MonoClass *klass = ((MonoTransparentProxy*)o)->remote_class->proxy_class;
2970
2971                                 addr = mono_load_remote_field_checked (o, klass, field, &tmp, &error);
2972                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2973                         } else {
2974                                 addr = (char*)o + field->offset;
2975                         }
2976
2977                         stackval_from_data (field->type, &sp [-1], addr, FALSE);
2978                         MINT_IN_BREAK;
2979                 }
2980
2981                 MINT_IN_CASE(MINT_LDRMFLD_VT) {
2982                         MonoClassField *field;
2983                         char *addr;
2984                         gpointer tmp;
2985
2986                         o = sp [-1].data.p;
2987                         if (!o)
2988                                 THROW_EX (mono_get_exception_null_reference (), ip);
2989                         field = rtm->data_items[* (guint16 *)(ip + 1)];
2990                         i32 = READ32(ip + 2);
2991                         ip += 4;
2992                         if (mono_object_is_transparent_proxy (o)) {
2993                                 MonoClass *klass = ((MonoTransparentProxy*)o)->remote_class->proxy_class;
2994                                 addr = mono_load_remote_field_checked (o, klass, field, &tmp, &error);
2995                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2996                         } else {
2997                                 addr = (char*)o + field->offset;
2998                         }
2999
3000                         sp [-1].data.p = vt_sp;
3001                         memcpy(sp [-1].data.p, (char *)o + * (guint16 *)(ip + 1), i32);
3002                         vt_sp += (i32 + 7) & ~7;
3003                         memcpy(sp [-1].data.p, addr, i32);
3004                         MINT_IN_BREAK;
3005                 }
3006
3007 #define STFLD(datamem, fieldtype) \
3008         o = sp [-2].data.p; \
3009         if (!o) \
3010                 THROW_EX (mono_get_exception_null_reference (), ip); \
3011         sp -= 2; \
3012         * (fieldtype *)((char *)o + * (guint16 *)(ip + 1)) = sp[1].data.datamem; \
3013         ip += 2;
3014
3015                 MINT_IN_CASE(MINT_STFLD_I1) STFLD(i, gint8); MINT_IN_BREAK;
3016                 MINT_IN_CASE(MINT_STFLD_U1) STFLD(i, guint8); MINT_IN_BREAK;
3017                 MINT_IN_CASE(MINT_STFLD_I2) STFLD(i, gint16); MINT_IN_BREAK;
3018                 MINT_IN_CASE(MINT_STFLD_U2) STFLD(i, guint16); MINT_IN_BREAK;
3019                 MINT_IN_CASE(MINT_STFLD_I4) STFLD(i, gint32); MINT_IN_BREAK;
3020                 MINT_IN_CASE(MINT_STFLD_I8) STFLD(l, gint64); MINT_IN_BREAK;
3021                 MINT_IN_CASE(MINT_STFLD_R4) STFLD(f, float); MINT_IN_BREAK;
3022                 MINT_IN_CASE(MINT_STFLD_R8) STFLD(f, double); MINT_IN_BREAK;
3023                 MINT_IN_CASE(MINT_STFLD_O) STFLD(p, gpointer); MINT_IN_BREAK;
3024                 MINT_IN_CASE(MINT_STFLD_P) STFLD(p, gpointer); MINT_IN_BREAK;
3025
3026                 MINT_IN_CASE(MINT_STFLD_VT)
3027                         o = sp [-2].data.p;
3028                         if (!o)
3029                                 THROW_EX (mono_get_exception_null_reference (), ip);
3030                         i32 = READ32(ip + 2);
3031                         sp -= 2;
3032                         memcpy((char *)o + * (guint16 *)(ip + 1), sp [1].data.p, i32);
3033                         vt_sp -= (i32 + 7) & ~7;
3034                         ip += 4;
3035                         MINT_IN_BREAK;
3036
3037                 MINT_IN_CASE(MINT_STRMFLD) {
3038                         MonoClassField *field;
3039
3040                         o = sp [-2].data.p;
3041                         if (!o)
3042                                 THROW_EX (mono_get_exception_null_reference (), ip);
3043
3044                         field = rtm->data_items[* (guint16 *)(ip + 1)];
3045                         ip += 2;
3046
3047                         if (mono_object_is_transparent_proxy (o)) {
3048                                 MonoClass *klass = ((MonoTransparentProxy*)o)->remote_class->proxy_class;
3049                                 mono_store_remote_field_checked (o, klass, field, &sp [-1].data, &error);
3050                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3051                         } else
3052                                 stackval_to_data (field->type, &sp [-1], (char*)o + field->offset, FALSE);
3053
3054                         sp -= 2;
3055                         MINT_IN_BREAK;
3056                 }
3057                 MINT_IN_CASE(MINT_STRMFLD_VT) {
3058                         MonoClassField *field;
3059
3060                         o = sp [-2].data.p;
3061                         if (!o)
3062                                 THROW_EX (mono_get_exception_null_reference (), ip);
3063                         field = rtm->data_items[* (guint16 *)(ip + 1)];
3064                         i32 = READ32(ip + 2);
3065                         ip += 4;
3066
3067                         if (mono_object_is_transparent_proxy (o)) {
3068                                 MonoClass *klass = ((MonoTransparentProxy*)o)->remote_class->proxy_class;
3069                                 mono_store_remote_field_checked (o, klass, field, &sp [-1].data, &error);
3070                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3071                         } else
3072                                 memcpy((char*)o + field->offset, sp [-1].data.p, i32);
3073
3074                         sp -= 2;
3075                         vt_sp -= (i32 + 7) & ~7;
3076                         MINT_IN_BREAK;
3077                 }
3078                 MINT_IN_CASE(MINT_LDSFLDA) {
3079                         MonoClassField *field = rtm->data_items[*(guint16 *)(ip + 1)];
3080                         sp->data.p = mono_class_static_field_address (context->domain, field);
3081                         ip += 2;
3082                         ++sp;
3083                         MINT_IN_BREAK;
3084                 }
3085                 MINT_IN_CASE(MINT_LDSFLD) {
3086                         MonoClassField *field = rtm->data_items [* (guint16 *)(ip + 1)];
3087                         gpointer addr = mono_class_static_field_address (context->domain, field);
3088                         stackval_from_data (field->type, sp, addr, FALSE);
3089                         ip += 2;
3090                         ++sp;
3091                         MINT_IN_BREAK;
3092                 }
3093                 MINT_IN_CASE(MINT_LDSFLD_VT) {
3094                         MonoClassField *field = rtm->data_items [* (guint16 *)(ip + 1)];
3095                         gpointer addr = mono_class_static_field_address (context->domain, field);
3096                         int size = READ32 (ip + 2);
3097                         ip += 4;
3098
3099                         sp->data.p = vt_sp;
3100                         vt_sp += (size + 7) & ~7;
3101                         stackval_from_data (field->type, sp, addr, FALSE);
3102                         ++sp;
3103                         MINT_IN_BREAK;
3104                 }
3105                 MINT_IN_CASE(MINT_STSFLD) {
3106                         MonoClassField *field = rtm->data_items [* (guint16 *)(ip + 1)];
3107                         gpointer addr = mono_class_static_field_address (context->domain, field);
3108                         ip += 2;
3109                         --sp;
3110                         stackval_to_data (field->type, sp, addr, FALSE);
3111                         MINT_IN_BREAK;
3112                 }
3113                 MINT_IN_CASE(MINT_STSFLD_VT) {
3114                         MonoClassField *field = rtm->data_items [* (guint16 *)(ip + 1)];
3115                         gpointer addr = mono_class_static_field_address (context->domain, field);
3116                         int size = READ32 (ip + 2);
3117                         ip += 4;
3118
3119                         --sp;
3120                         stackval_to_data (field->type, sp, addr, FALSE);
3121                         vt_sp -= (size + 7) & ~7;
3122                         MINT_IN_BREAK;
3123                 }
3124                 MINT_IN_CASE(MINT_STOBJ_VT) {
3125                         int size;
3126                         c = rtm->data_items[* (guint16 *)(ip + 1)];
3127                         ip += 2;
3128                         size = mono_class_value_size (c, NULL);
3129                         memcpy(sp [-2].data.p, sp [-1].data.p, size);
3130                         vt_sp -= (size + 7) & ~7;
3131                         sp -= 2;
3132                         MINT_IN_BREAK;
3133                 }
3134                 MINT_IN_CASE(MINT_STOBJ) {
3135                         int size;
3136                         c = rtm->data_items[* (guint16 *)(ip + 1)];
3137                         ip += 2;
3138                         size = mono_class_value_size (c, NULL);
3139                         memcpy(sp [-2].data.p, &sp [-1].data, size);
3140                         sp -= 2;
3141                         MINT_IN_BREAK;
3142                 }
3143                 MINT_IN_CASE(MINT_CONV_OVF_I4_UN_R8)
3144                         if (sp [-1].data.f < 0 || sp [-1].data.f > MYGUINT32_MAX)
3145                                 THROW_EX (mono_get_exception_overflow (), ip);
3146                         sp [-1].data.i = (guint32)sp [-1].data.f;
3147                         ++ip;
3148                         MINT_IN_BREAK;
3149                 MINT_IN_CASE(MINT_CONV_OVF_U8_I4)
3150                         if (sp [-1].data.i < 0)
3151                                 THROW_EX (mono_get_exception_overflow (), ip);
3152                         sp [-1].data.l = sp [-1].data.i;
3153                         ++ip;
3154                         MINT_IN_BREAK;
3155                 MINT_IN_CASE(MINT_CONV_OVF_U8_I8)
3156                         if (sp [-1].data.l < 0)
3157                                 THROW_EX (mono_get_exception_overflow (), ip);
3158                         ++ip;
3159                         MINT_IN_BREAK;
3160                 MINT_IN_CASE(MINT_CONV_OVF_I8_U8)
3161                         if ((guint64) sp [-1].data.l > MYGINT64_MAX)
3162                                 THROW_EX (mono_get_exception_overflow (), ip);
3163                         ++ip;
3164                         MINT_IN_BREAK;
3165                 MINT_IN_CASE(MINT_CONV_OVF_U8_R8)
3166                 MINT_IN_CASE(MINT_CONV_OVF_I8_UN_R8)
3167                         if (sp [-1].data.f < 0 || sp [-1].data.f > MYGINT64_MAX)
3168                                 THROW_EX (mono_get_exception_overflow (), ip);
3169                         sp [-1].data.l = (guint64)sp [-1].data.f;
3170                         ++ip;
3171                         MINT_IN_BREAK;
3172                 MINT_IN_CASE(MINT_CONV_OVF_I8_R8)
3173                         if (sp [-1].data.f < MYGINT64_MIN || sp [-1].data.f > MYGINT64_MAX)
3174                                 THROW_EX (mono_get_exception_overflow (), ip);
3175                         sp [-1].data.l = (gint64)sp [-1].data.f;
3176                         ++ip;
3177                         MINT_IN_BREAK;
3178                 MINT_IN_CASE(MINT_CONV_OVF_I4_UN_I8)
3179                         if ((mono_u)sp [-1].data.l > MYGUINT32_MAX)
3180                                 THROW_EX (mono_get_exception_overflow (), ip);
3181                         sp [-1].data.i = (mono_u)sp [-1].data.l;
3182                         ++ip;
3183                         MINT_IN_BREAK;
3184                 MINT_IN_CASE(MINT_BOX) {
3185                         c = rtm->data_items [* (guint16 *)(ip + 1)];
3186                         guint16 offset = * (guint16 *)(ip + 2);
3187
3188                         if (c->byval_arg.type == MONO_TYPE_VALUETYPE && !c->enumtype) {
3189                                 int size = mono_class_value_size (c, NULL);
3190                                 sp [-1 - offset].data.p = mono_value_box_checked (context->domain, c, sp [-1 - offset].data.p, &error);
3191                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3192                                 size = (size + 7) & ~7;
3193                                 vt_sp -= size;
3194                         } else {
3195                                 stackval_to_data (&c->byval_arg, &sp [-1 - offset], (char *) &sp [-1 - offset], FALSE);
3196                                 sp [-1 - offset].data.p = mono_value_box_checked (context->domain, c, &sp [-1 - offset], &error);
3197                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3198                         }
3199                         ip += 3;
3200                         MINT_IN_BREAK;
3201                 }
3202                 MINT_IN_CASE(MINT_NEWARR)
3203                         sp [-1].data.p = (MonoObject*) mono_array_new_checked (context->domain, rtm->data_items[*(guint16 *)(ip + 1)], sp [-1].data.i, &error);
3204                         if (!mono_error_ok (&error)) {
3205                                 THROW_EX (mono_error_convert_to_exception (&error), ip);
3206                         }
3207                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3208                         ip += 2;
3209                         /*if (profiling_classes) {
3210                                 guint count = GPOINTER_TO_UINT (g_hash_table_lookup (profiling_classes, o->vtable->klass));
3211                                 count++;
3212                                 g_hash_table_insert (profiling_classes, o->vtable->klass, GUINT_TO_POINTER (count));
3213                         }*/
3214
3215                         MINT_IN_BREAK;
3216                 MINT_IN_CASE(MINT_LDLEN)
3217                         o = sp [-1].data.p;
3218                         if (!o)
3219                                 THROW_EX (mono_get_exception_null_reference (), ip);
3220                         sp [-1].data.nati = mono_array_length ((MonoArray *)o);
3221                         ++ip;
3222                         MINT_IN_BREAK;
3223                 MINT_IN_CASE(MINT_GETCHR) {
3224                         MonoString *s;
3225                         s = sp [-2].data.p;
3226                         if (!s)
3227                                 THROW_EX (mono_get_exception_null_reference (), ip);
3228                         i32 = sp [-1].data.i;
3229                         if (i32 < 0 || i32 >= mono_string_length (s))
3230                                 THROW_EX (mono_get_exception_index_out_of_range (), ip);
3231                         --sp;
3232                         sp [-1].data.i = mono_string_chars(s)[i32];
3233                         ++ip;
3234                         MINT_IN_BREAK;
3235                 }
3236                 MINT_IN_CASE(MINT_STRLEN)
3237                         ++ip;
3238                         sp [-1].data.i = mono_string_length ((MonoString*)sp [-1].data.p);
3239                         MINT_IN_BREAK;
3240                 MINT_IN_CASE(MINT_ARRAY_RANK)
3241                         o = sp [-1].data.p;
3242                         if (!o)
3243                                 THROW_EX (mono_get_exception_null_reference (), ip);
3244                         sp [-1].data.i = mono_object_class (sp [-1].data.p)->rank;
3245                         ip++;
3246                         MINT_IN_BREAK;
3247                 MINT_IN_CASE(MINT_LDELEMA)
3248                 MINT_IN_CASE(MINT_LDELEMA_TC) {
3249                         gboolean needs_typecheck = *ip == MINT_LDELEMA_TC;
3250
3251                         MonoClass *klass = rtm->data_items [*(guint16 *) (ip + 1)];
3252                         guint16 numargs = *(guint16 *) (ip + 2);
3253                         ip += 3;
3254                         sp -= numargs;
3255
3256                         o = sp [0].data.p;
3257                         sp->data.p = ves_array_element_address (frame, klass, (MonoArray *) o, &sp [1], needs_typecheck);
3258                         if (frame->ex)
3259                                 THROW_EX (frame->ex, ip);
3260                         ++sp;
3261
3262                         MINT_IN_BREAK;
3263                 }
3264                 MINT_IN_CASE(MINT_LDELEM_I1) /* fall through */
3265                 MINT_IN_CASE(MINT_LDELEM_U1) /* fall through */
3266                 MINT_IN_CASE(MINT_LDELEM_I2) /* fall through */
3267                 MINT_IN_CASE(MINT_LDELEM_U2) /* fall through */
3268                 MINT_IN_CASE(MINT_LDELEM_I4) /* fall through */
3269                 MINT_IN_CASE(MINT_LDELEM_U4) /* fall through */
3270                 MINT_IN_CASE(MINT_LDELEM_I8)  /* fall through */
3271                 MINT_IN_CASE(MINT_LDELEM_I)  /* fall through */
3272                 MINT_IN_CASE(MINT_LDELEM_R4) /* fall through */
3273                 MINT_IN_CASE(MINT_LDELEM_R8) /* fall through */
3274                 MINT_IN_CASE(MINT_LDELEM_REF) /* fall through */
3275                 MINT_IN_CASE(MINT_LDELEM_VT) {
3276                         MonoArray *o;
3277                         mono_u aindex;
3278
3279                         sp -= 2;
3280
3281                         o = sp [0].data.p;
3282                         if (!o)
3283                                 THROW_EX (mono_get_exception_null_reference (), ip);
3284
3285                         aindex = sp [1].data.i;
3286                         if (aindex >= mono_array_length (o))
3287                                 THROW_EX (mono_get_exception_index_out_of_range (), ip);
3288
3289                         /*
3290                          * FIXME: throw mono_get_exception_array_type_mismatch () if needed
3291                          */
3292                         switch (*ip) {
3293                         case MINT_LDELEM_I1:
3294                                 sp [0].data.i = mono_array_get (o, gint8, aindex);
3295                                 break;
3296                         case MINT_LDELEM_U1:
3297                                 sp [0].data.i = mono_array_get (o, guint8, aindex);
3298                                 break;
3299                         case MINT_LDELEM_I2:
3300                                 sp [0].data.i = mono_array_get (o, gint16, aindex);
3301                                 break;
3302                         case MINT_LDELEM_U2:
3303                                 sp [0].data.i = mono_array_get (o, guint16, aindex);
3304                                 break;
3305                         case MINT_LDELEM_I:
3306                                 sp [0].data.nati = mono_array_get (o, mono_i, aindex);
3307                                 break;
3308                         case MINT_LDELEM_I4:
3309                                 sp [0].data.i = mono_array_get (o, gint32, aindex);
3310                                 break;
3311                         case MINT_LDELEM_U4:
3312                                 sp [0].data.i = mono_array_get (o, guint32, aindex);
3313                                 break;
3314                         case MINT_LDELEM_I8:
3315                                 sp [0].data.l = mono_array_get (o, guint64, aindex);
3316                                 break;
3317                         case MINT_LDELEM_R4:
3318                                 sp [0].data.f = mono_array_get (o, float, aindex);
3319                                 break;
3320                         case MINT_LDELEM_R8:
3321                                 sp [0].data.f = mono_array_get (o, double, aindex);
3322                                 break;
3323                         case MINT_LDELEM_REF:
3324                                 sp [0].data.p = mono_array_get (o, gpointer, aindex);
3325                                 break;
3326                         case MINT_LDELEM_VT: {
3327                                 MonoClass *klass_vt = rtm->data_items [*(guint16 *) (ip + 1)];
3328                                 i32 = READ32 (ip + 2);
3329                                 char *src_addr = mono_array_addr_with_size ((MonoArray *) o, i32, aindex);
3330                                 sp [0].data.vt = vt_sp;
3331                                 stackval_from_data (&klass_vt->byval_arg, sp, src_addr, FALSE);
3332                                 vt_sp += (i32 + 7) & ~7;
3333                                 ip += 3;
3334                                 break;
3335                         }
3336                         default:
3337                                 ves_abort();
3338                         }
3339
3340                         ++ip;
3341                         ++sp;
3342                         MINT_IN_BREAK;
3343                 }
3344                 MINT_IN_CASE(MINT_STELEM_I)  /* fall through */
3345                 MINT_IN_CASE(MINT_STELEM_I1) /* fall through */
3346                 MINT_IN_CASE(MINT_STELEM_U1) /* fall through */
3347                 MINT_IN_CASE(MINT_STELEM_I2) /* fall through */
3348                 MINT_IN_CASE(MINT_STELEM_I4) /* fall through */
3349                 MINT_IN_CASE(MINT_STELEM_I8) /* fall through */
3350                 MINT_IN_CASE(MINT_STELEM_R4) /* fall through */
3351                 MINT_IN_CASE(MINT_STELEM_R8) /* fall through */
3352                 MINT_IN_CASE(MINT_STELEM_REF) /* fall through */
3353                 MINT_IN_CASE(MINT_STELEM_VT) {
3354                         mono_u aindex;
3355
3356                         sp -= 3;
3357
3358                         o = sp [0].data.p;
3359                         if (!o)
3360                                 THROW_EX (mono_get_exception_null_reference (), ip);
3361
3362                         aindex = sp [1].data.i;
3363                         if (aindex >= mono_array_length ((MonoArray *)o))
3364                                 THROW_EX (mono_get_exception_index_out_of_range (), ip);
3365
3366                         switch (*ip) {
3367                         case MINT_STELEM_I:
3368                                 mono_array_set ((MonoArray *)o, mono_i, aindex, sp [2].data.nati);
3369                                 break;
3370                         case MINT_STELEM_I1:
3371                                 mono_array_set ((MonoArray *)o, gint8, aindex, sp [2].data.i);
3372                                 break;
3373                         case MINT_STELEM_U1:
3374                                 mono_array_set ((MonoArray *) o, guint8, aindex, sp [2].data.i);
3375                                 break;
3376                         case MINT_STELEM_I2:
3377                                 mono_array_set ((MonoArray *)o, gint16, aindex, sp [2].data.i);
3378                                 break;
3379                         case MINT_STELEM_I4:
3380                                 mono_array_set ((MonoArray *)o, gint32, aindex, sp [2].data.i);
3381                                 break;
3382                         case MINT_STELEM_I8:
3383                                 mono_array_set ((MonoArray *)o, gint64, aindex, sp [2].data.l);
3384                                 break;
3385                         case MINT_STELEM_R4:
3386                                 mono_array_set ((MonoArray *)o, float, aindex, sp [2].data.f);
3387                                 break;
3388                         case MINT_STELEM_R8:
3389                                 mono_array_set ((MonoArray *)o, double, aindex, sp [2].data.f);
3390                                 break;
3391                         case MINT_STELEM_REF: {
3392                                 MonoObject *isinst_obj = mono_object_isinst_checked (sp [2].data.p, mono_object_class (o)->element_class, &error);
3393                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3394                                 if (sp [2].data.p && !isinst_obj)
3395                                         THROW_EX (mono_get_exception_array_type_mismatch (), ip);
3396                                 mono_array_set ((MonoArray *)o, gpointer, aindex, sp [2].data.p);
3397                                 break;
3398                         }
3399                         case MINT_STELEM_VT: {
3400                                 MonoClass *klass_vt = rtm->data_items [*(guint16 *) (ip + 1)];
3401                                 i32 = READ32 (ip + 2);
3402                                 char *dst_addr = mono_array_addr_with_size ((MonoArray *) o, i32, aindex);
3403
3404                                 stackval_to_data (&klass_vt->byval_arg, &sp [2], dst_addr, FALSE);
3405                                 vt_sp -= (i32 + 7) & ~7;
3406                                 ip += 3;
3407                                 break;
3408                         }
3409                         default:
3410                                 ves_abort();
3411                         }
3412
3413                         ++ip;
3414                         MINT_IN_BREAK;
3415                 }
3416                 MINT_IN_CASE(MINT_CONV_OVF_I4_U4)
3417                         if (sp [-1].data.i < 0)
3418                                 THROW_EX (mono_get_exception_overflow (), ip);
3419                         ++ip;
3420                         MINT_IN_BREAK;
3421                 MINT_IN_CASE(MINT_CONV_OVF_I4_I8)
3422                         if (sp [-1].data.l < MYGINT32_MIN || sp [-1].data.l > MYGINT32_MAX)
3423                                 THROW_EX (mono_get_exception_overflow (), ip);
3424                         sp [-1].data.i = (gint32) sp [-1].data.l;
3425                         ++ip;
3426                         MINT_IN_BREAK;
3427                 MINT_IN_CASE(MINT_CONV_OVF_I4_U8)
3428                         if (sp [-1].data.l < 0 || sp [-1].data.l > MYGINT32_MAX)
3429                                 THROW_EX (mono_get_exception_overflow (), ip);
3430                         sp [-1].data.i = (gint32) sp [-1].data.l;
3431                         ++ip;
3432                         MINT_IN_BREAK;
3433                 MINT_IN_CASE(MINT_CONV_OVF_I4_R8)
3434                         if (sp [-1].data.f < MYGINT32_MIN || sp [-1].data.f > MYGINT32_MAX)
3435                                 THROW_EX (mono_get_exception_overflow (), ip);
3436                         sp [-1].data.i = (gint32) sp [-1].data.f;
3437                         ++ip;
3438                         MINT_IN_BREAK;
3439                 MINT_IN_CASE(MINT_CONV_OVF_U4_I4)
3440                         if (sp [-1].data.i < 0)
3441                                 THROW_EX (mono_get_exception_overflow (), ip);
3442                         ++ip;
3443                         MINT_IN_BREAK;
3444                 MINT_IN_CASE(MINT_CONV_OVF_U4_I8)
3445                         if (sp [-1].data.l < 0 || sp [-1].data.l > MYGUINT32_MAX)
3446                                 THROW_EX (mono_get_exception_overflow (), ip);
3447                         sp [-1].data.i = (guint32) sp [-1].data.l;
3448                         ++ip;
3449                         MINT_IN_BREAK;
3450                 MINT_IN_CASE(MINT_CONV_OVF_U4_R8)
3451                         if (sp [-1].data.f < 0 || sp [-1].data.f > MYGUINT32_MAX)
3452                                 THROW_EX (mono_get_exception_overflow (), ip);
3453                         sp [-1].data.i = (guint32) sp [-1].data.f;
3454                         ++ip;
3455                         MINT_IN_BREAK;
3456                 MINT_IN_CASE(MINT_CONV_OVF_I2_I4)
3457                         if (sp [-1].data.i < -32768 || sp [-1].data.i > 32767)
3458                                 THROW_EX (mono_get_exception_overflow (), ip);
3459                         ++ip;
3460                         MINT_IN_BREAK;
3461                 MINT_IN_CASE(MINT_CONV_OVF_I2_I8)
3462                         if (sp [-1].data.l < -32768 || sp [-1].data.l > 32767)
3463                                 THROW_EX (mono_get_exception_overflow (), ip);
3464                         sp [-1].data.i = (gint16) sp [-1].data.l;
3465                         ++ip;
3466                         MINT_IN_BREAK;
3467                 MINT_IN_CASE(MINT_CONV_OVF_I2_R8)
3468                         if (sp [-1].data.f < -32768 || sp [-1].data.f > 32767)
3469                                 THROW_EX (mono_get_exception_overflow (), ip);
3470                         sp [-1].data.i = (gint16) sp [-1].data.f;
3471                         ++ip;
3472                         MINT_IN_BREAK;
3473                 MINT_IN_CASE(MINT_CONV_OVF_U2_I4)
3474                         if (sp [-1].data.i < 0 || sp [-1].data.i > 65535)
3475                                 THROW_EX (mono_get_exception_overflow (), ip);
3476                         ++ip;
3477                         MINT_IN_BREAK;
3478                 MINT_IN_CASE(MINT_CONV_OVF_U2_I8)
3479                         if (sp [-1].data.l < 0 || sp [-1].data.l > 65535)
3480                                 THROW_EX (mono_get_exception_overflow (), ip);
3481                         sp [-1].data.i = (guint16) sp [-1].data.l;
3482                         ++ip;
3483                         MINT_IN_BREAK;
3484                 MINT_IN_CASE(MINT_CONV_OVF_U2_R8)
3485                         if (sp [-1].data.f < 0 || sp [-1].data.f > 65535)
3486                                 THROW_EX (mono_get_exception_overflow (), ip);
3487                         sp [-1].data.i = (guint16) sp [-1].data.f;
3488                         ++ip;
3489                         MINT_IN_BREAK;
3490                 MINT_IN_CASE(MINT_CONV_OVF_I1_I4)
3491                         if (sp [-1].data.i < -128 || sp [-1].data.i > 127)
3492                                 THROW_EX (mono_get_exception_overflow (), ip);
3493                         ++ip;
3494                         MINT_IN_BREAK;
3495                 MINT_IN_CASE(MINT_CONV_OVF_I1_I8)
3496                         if (sp [-1].data.l < -128 || sp [-1].data.l > 127)
3497                                 THROW_EX (mono_get_exception_overflow (), ip);
3498                         sp [-1].data.i = (gint8) sp [-1].data.l;
3499                         ++ip;
3500                         MINT_IN_BREAK;
3501                 MINT_IN_CASE(MINT_CONV_OVF_I1_R8)
3502                         if (sp [-1].data.f < -128 || sp [-1].data.f > 127)
3503                                 THROW_EX (mono_get_exception_overflow (), ip);
3504                         sp [-1].data.i = (gint8) sp [-1].data.f;
3505                         ++ip;
3506                         MINT_IN_BREAK;
3507                 MINT_IN_CASE(MINT_CONV_OVF_U1_I4)
3508                         if (sp [-1].data.i < 0 || sp [-1].data.i > 255)
3509                                 THROW_EX (mono_get_exception_overflow (), ip);
3510                         ++ip;
3511                         MINT_IN_BREAK;
3512                 MINT_IN_CASE(MINT_CONV_OVF_U1_I8)
3513                         if (sp [-1].data.l < 0 || sp [-1].data.l > 255)
3514                                 THROW_EX (mono_get_exception_overflow (), ip);
3515                         sp [-1].data.i = (guint8) sp [-1].data.l;
3516                         ++ip;
3517                         MINT_IN_BREAK;
3518                 MINT_IN_CASE(MINT_CONV_OVF_U1_R8)
3519                         if (sp [-1].data.f < 0 || sp [-1].data.f > 255)
3520                                 THROW_EX (mono_get_exception_overflow (), ip);
3521                         sp [-1].data.i = (guint8) sp [-1].data.f;
3522                         ++ip;
3523                         MINT_IN_BREAK;
3524 #if 0
3525                 MINT_IN_CASE(MINT_LDELEM)
3526                 MINT_IN_CASE(MINT_STELEM)
3527                 MINT_IN_CASE(MINT_UNBOX_ANY)
3528
3529                 MINT_IN_CASE(MINT_REFANYVAL) ves_abort(); MINT_IN_BREAK;
3530 #endif
3531                 MINT_IN_CASE(MINT_CKFINITE)
3532                         if (!isfinite(sp [-1].data.f))
3533                                 THROW_EX (mono_get_exception_arithmetic (), ip);
3534                         ++ip;
3535                         MINT_IN_BREAK;
3536 #if 0
3537                 MINT_IN_CASE(MINT_MKREFANY) ves_abort(); MINT_IN_BREAK;
3538 #endif
3539                 MINT_IN_CASE(MINT_LDTOKEN)
3540                         sp->data.p = vt_sp;
3541                         vt_sp += 8;
3542                         * (gpointer *)sp->data.p = rtm->data_items[*(guint16 *)(ip + 1)];
3543                         ip += 2;
3544                         ++sp;
3545                         MINT_IN_BREAK;
3546                 MINT_IN_CASE(MINT_ADD_OVF_I4)
3547                         if (CHECK_ADD_OVERFLOW (sp [-2].data.i, sp [-1].data.i))
3548                                 THROW_EX (mono_get_exception_overflow (), ip);
3549                         BINOP(i, +);
3550                         MINT_IN_BREAK;
3551                 MINT_IN_CASE(MINT_ADD_OVF_I8)
3552                         if (CHECK_ADD_OVERFLOW64 (sp [-2].data.l, sp [-1].data.l))
3553                                 THROW_EX (mono_get_exception_overflow (), ip);
3554                         BINOP(l, +);
3555                         MINT_IN_BREAK;
3556                 MINT_IN_CASE(MINT_ADD_OVF_UN_I4)
3557                         if (CHECK_ADD_OVERFLOW_UN (sp [-2].data.i, sp [-1].data.i))
3558                                 THROW_EX (mono_get_exception_overflow (), ip);
3559                         BINOP_CAST(i, +, guint32);
3560                         MINT_IN_BREAK;
3561                 MINT_IN_CASE(MINT_ADD_OVF_UN_I8)
3562                         if (CHECK_ADD_OVERFLOW64_UN (sp [-2].data.l, sp [-1].data.l))
3563                                 THROW_EX (mono_get_exception_overflow (), ip);
3564                         BINOP_CAST(l, +, guint64);
3565                         MINT_IN_BREAK;
3566                 MINT_IN_CASE(MINT_MUL_OVF_I4)
3567                         if (CHECK_MUL_OVERFLOW (sp [-2].data.i, sp [-1].data.i))
3568                                 THROW_EX (mono_get_exception_overflow (), ip);
3569                         BINOP(i, *);
3570                         MINT_IN_BREAK;
3571                 MINT_IN_CASE(MINT_MUL_OVF_I8)
3572                         if (CHECK_MUL_OVERFLOW64 (sp [-2].data.l, sp [-1].data.l))
3573                                 THROW_EX (mono_get_exception_overflow (), ip);
3574                         BINOP(l, *);
3575                         MINT_IN_BREAK;
3576                 MINT_IN_CASE(MINT_MUL_OVF_UN_I4)
3577                         if (CHECK_MUL_OVERFLOW_UN (sp [-2].data.i, sp [-1].data.i))
3578                                 THROW_EX (mono_get_exception_overflow (), ip);
3579                         BINOP_CAST(i, *, guint32);
3580                         MINT_IN_BREAK;
3581                 MINT_IN_CASE(MINT_MUL_OVF_UN_I8)
3582                         if (CHECK_MUL_OVERFLOW64_UN (sp [-2].data.l, sp [-1].data.l))
3583                                 THROW_EX (mono_get_exception_overflow (), ip);
3584                         BINOP_CAST(l, *, guint64);
3585                         MINT_IN_BREAK;
3586                 MINT_IN_CASE(MINT_SUB_OVF_I4)
3587                         if (CHECK_SUB_OVERFLOW (sp [-2].data.i, sp [-1].data.i))
3588                                 THROW_EX (mono_get_exception_overflow (), ip);
3589                         BINOP(i, -);
3590                         MINT_IN_BREAK;
3591                 MINT_IN_CASE(MINT_SUB_OVF_I8)
3592                         if (CHECK_SUB_OVERFLOW64 (sp [-2].data.l, sp [-1].data.l))
3593                                 THROW_EX (mono_get_exception_overflow (), ip);
3594                         BINOP(l, -);
3595                         MINT_IN_BREAK;
3596                 MINT_IN_CASE(MINT_SUB_OVF_UN_I4)
3597                         if (CHECK_SUB_OVERFLOW_UN (sp [-2].data.i, sp [-1].data.i))
3598                                 THROW_EX (mono_get_exception_overflow (), ip);
3599                         BINOP_CAST(i, -, guint32);
3600                         MINT_IN_BREAK;
3601                 MINT_IN_CASE(MINT_SUB_OVF_UN_I8)
3602                         if (CHECK_SUB_OVERFLOW64_UN (sp [-2].data.l, sp [-1].data.l))
3603                                 THROW_EX (mono_get_exception_overflow (), ip);
3604                         BINOP_CAST(l, -, guint64);
3605                         MINT_IN_BREAK;
3606                 MINT_IN_CASE(MINT_ENDFINALLY)
3607                         if (finally_ips) {
3608                                 ip = finally_ips->data;
3609                                 finally_ips = g_slist_remove (finally_ips, ip);
3610                                 goto main_loop;
3611                         }
3612                         if (frame->ex)
3613                                 goto handle_fault;
3614                         ves_abort();
3615                         MINT_IN_BREAK;
3616                 MINT_IN_CASE(MINT_LEAVE) /* Fall through */
3617                 MINT_IN_CASE(MINT_LEAVE_S)
3618                         while (sp > frame->stack) {
3619                                 --sp;
3620                         }
3621                         frame->ip = ip;
3622                         if (*ip == MINT_LEAVE_S) {
3623                                 ip += (short) *(ip + 1);
3624                         } else {
3625                                 ip += (gint32) READ32 (ip + 1);
3626                         }
3627                         endfinally_ip = ip;
3628                         if (frame->ex_handler != NULL && MONO_OFFSET_IN_HANDLER(frame->ex_handler, frame->ip - rtm->code)) {
3629                                 frame->ex_handler = NULL;
3630                                 frame->ex = NULL;
3631                         }
3632                         goto handle_finally;
3633                         MINT_IN_BREAK;
3634                 MINT_IN_CASE(MINT_ICALL_V_V)
3635                 MINT_IN_CASE(MINT_ICALL_V_P)
3636                 MINT_IN_CASE(MINT_ICALL_P_V)
3637                 MINT_IN_CASE(MINT_ICALL_P_P)
3638                 MINT_IN_CASE(MINT_ICALL_PP_V)
3639                 MINT_IN_CASE(MINT_ICALL_PI_V)
3640                 MINT_IN_CASE(MINT_ICALL_PP_P)
3641                 MINT_IN_CASE(MINT_ICALL_PI_P)
3642                 MINT_IN_CASE(MINT_ICALL_PPP_V)
3643                 MINT_IN_CASE(MINT_ICALL_PPI_V)
3644                         sp = do_icall (context, *ip, sp, rtm->data_items [*(guint16 *)(ip + 1)]);
3645                         if (frame->ex != NULL)
3646                                 goto handle_exception;
3647                         ip += 2;
3648                         MINT_IN_BREAK;
3649                 MINT_IN_CASE(MINT_MONO_LDPTR)
3650                         sp->data.p = rtm->data_items [*(guint16 *)(ip + 1)];
3651                         ip += 2;
3652                         ++sp;
3653                         MINT_IN_BREAK;
3654                 MINT_IN_CASE(MINT_MONO_NEWOBJ)
3655                         sp->data.p = mono_object_new_checked (context->domain, rtm->data_items [*(guint16 *)(ip + 1)], &error);
3656                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3657                         ip += 2;
3658                         sp++;
3659                         MINT_IN_BREAK;
3660                 MINT_IN_CASE(MINT_MONO_FREE)
3661                         ++ip;
3662                         --sp;
3663                         g_error ("that doesn't seem right");
3664                         g_free (sp->data.p);
3665                         MINT_IN_BREAK;
3666                 MINT_IN_CASE(MINT_MONO_RETOBJ)
3667                         ++ip;
3668                         sp--;
3669                         stackval_from_data (mono_method_signature (frame->runtime_method->method)->ret, frame->retval, sp->data.p,
3670                              mono_method_signature (frame->runtime_method->method)->pinvoke);
3671                         if (sp > frame->stack)
3672                                 g_warning ("retobj: more values on stack: %d", sp-frame->stack);
3673                         goto exit_frame;
3674
3675 #define RELOP(datamem, op) \
3676         --sp; \
3677         sp [-1].data.i = sp [-1].data.datamem op sp [0].data.datamem; \
3678         ++ip;
3679                 MINT_IN_CASE(MINT_CEQ_I4)
3680                         RELOP(i, ==);
3681                         MINT_IN_BREAK;
3682                 MINT_IN_CASE(MINT_CEQ0_I4)
3683                         sp [-1].data.i = (sp [-1].data.i == 0);
3684                         ++ip;
3685                         MINT_IN_BREAK;
3686                 MINT_IN_CASE(MINT_CEQ_I8)
3687                         RELOP(l, ==);
3688                         MINT_IN_BREAK;
3689                 MINT_IN_CASE(MINT_CEQ_R8)
3690                         --sp;
3691                         if (isunordered (sp [-1].data.f, sp [0].data.f))
3692                                 sp [-1].data.i = 0;
3693                         else
3694                                 sp [-1].data.i = sp [-1].data.f == sp [0].data.f;
3695                         ++ip;
3696                         MINT_IN_BREAK;
3697                 MINT_IN_CASE(MINT_CGT_I4)
3698                         RELOP(i, >);
3699                         MINT_IN_BREAK;
3700                 MINT_IN_CASE(MINT_CGT_I8)
3701                         RELOP(l, >);
3702                         MINT_IN_BREAK;
3703                 MINT_IN_CASE(MINT_CGT_R8)
3704                         --sp;
3705                         if (isunordered (sp [-1].data.f, sp [0].data.f))
3706                                 sp [-1].data.i = 0;
3707                         else
3708                                 sp [-1].data.i = sp [-1].data.f > sp [0].data.f;
3709                         ++ip;
3710                         MINT_IN_BREAK;
3711
3712 #define RELOP_CAST(datamem, op, type) \
3713         --sp; \
3714         sp [-1].data.i = (type)sp [-1].data.datamem op (type)sp [0].data.datamem; \
3715         ++ip;
3716
3717                 MINT_IN_CASE(MINT_CGT_UN_I4)
3718                         RELOP_CAST(i, >, guint32);
3719                         MINT_IN_BREAK;
3720                 MINT_IN_CASE(MINT_CGT_UN_I8)
3721                         RELOP_CAST(l, >, guint64);
3722                         MINT_IN_BREAK;
3723                 MINT_IN_CASE(MINT_CGT_UN_R8)
3724                         --sp;
3725                         if (isunordered (sp [-1].data.f, sp [0].data.f))
3726                                 sp [-1].data.i = 1;
3727                         else
3728                                 sp [-1].data.i = sp [-1].data.f > sp [0].data.f;
3729                         ++ip;
3730                         MINT_IN_BREAK;
3731                 MINT_IN_CASE(MINT_CLT_I4)
3732                         RELOP(i, <);
3733                         MINT_IN_BREAK;
3734                 MINT_IN_CASE(MINT_CLT_I8)
3735                         RELOP(l, <);
3736                         MINT_IN_BREAK;
3737                 MINT_IN_CASE(MINT_CLT_R8)
3738                         --sp;
3739                         if (isunordered (sp [-1].data.f, sp [0].data.f))
3740                                 sp [-1].data.i = 0;
3741                         else
3742                                 sp [-1].data.i = sp [-1].data.f < sp [0].data.f;
3743                         ++ip;
3744                         MINT_IN_BREAK;
3745                 MINT_IN_CASE(MINT_CLT_UN_I4)
3746                         RELOP_CAST(i, <, guint32);
3747                         MINT_IN_BREAK;
3748                 MINT_IN_CASE(MINT_CLT_UN_I8)
3749                         RELOP_CAST(l, <, guint64);
3750                         MINT_IN_BREAK;
3751                 MINT_IN_CASE(MINT_CLT_UN_R8)
3752                         --sp;
3753                         if (isunordered (sp [-1].data.f, sp [0].data.f))
3754                                 sp [-1].data.i = 1;
3755                         else
3756                                 sp [-1].data.i = sp [-1].data.f < sp [0].data.f;
3757                         ++ip;
3758                         MINT_IN_BREAK;
3759                 MINT_IN_CASE(MINT_LDFTN) {
3760                         sp->data.p = rtm->data_items [* (guint16 *)(ip + 1)];
3761                         ++sp;
3762                         ip += 2;
3763                         MINT_IN_BREAK;
3764                 }
3765                 MINT_IN_CASE(MINT_LDVIRTFTN) {
3766                         RuntimeMethod *m = rtm->data_items [* (guint16 *)(ip + 1)];
3767                         ip += 2;
3768                         --sp;
3769                         if (!sp->data.p)
3770                                 THROW_EX (mono_get_exception_null_reference (), ip - 2);
3771
3772                         sp->data.p = get_virtual_method (context->domain, m, sp->data.p);
3773                         ++sp;
3774                         MINT_IN_BREAK;
3775                 }
3776
3777                 MINT_IN_CASE(MINT_LDTHISA)
3778                         g_error ("should not happen");
3779                         // sp->data.p = &frame->obj;
3780                         ++ip;
3781                         ++sp;
3782                         MINT_IN_BREAK;
3783
3784 #define LDARG(datamem, argtype) \
3785         sp->data.datamem = * (argtype *)(frame->args + * (guint16 *)(ip + 1)); \
3786         ip += 2; \
3787         ++sp;
3788
3789                 MINT_IN_CASE(MINT_LDARG_I1) LDARG(i, gint8); MINT_IN_BREAK;
3790                 MINT_IN_CASE(MINT_LDARG_U1) LDARG(i, guint8); MINT_IN_BREAK;
3791                 MINT_IN_CASE(MINT_LDARG_I2) LDARG(i, gint16); MINT_IN_BREAK;
3792                 MINT_IN_CASE(MINT_LDARG_U2) LDARG(i, guint16); MINT_IN_BREAK;
3793                 MINT_IN_CASE(MINT_LDARG_I4) LDARG(i, gint32); MINT_IN_BREAK;
3794                 MINT_IN_CASE(MINT_LDARG_I8) LDARG(l, gint64); MINT_IN_BREAK;
3795                 MINT_IN_CASE(MINT_LDARG_R4) LDARG(f, float); MINT_IN_BREAK;
3796                 MINT_IN_CASE(MINT_LDARG_R8) LDARG(f, double); MINT_IN_BREAK;
3797                 MINT_IN_CASE(MINT_LDARG_O) LDARG(p, gpointer); MINT_IN_BREAK;
3798                 MINT_IN_CASE(MINT_LDARG_P) LDARG(p, gpointer); MINT_IN_BREAK;
3799
3800                 MINT_IN_CASE(MINT_LDARG_VT)
3801                         sp->data.p = vt_sp;
3802                         i32 = READ32(ip + 2);
3803                         memcpy(sp->data.p, frame->args + * (guint16 *)(ip + 1), i32);
3804                         vt_sp += (i32 + 7) & ~7;
3805                         ip += 4;
3806                         ++sp;
3807                         MINT_IN_BREAK;
3808
3809 #define STARG(datamem, argtype) \
3810         --sp; \
3811         * (argtype *)(frame->args + * (guint16 *)(ip + 1)) = sp->data.datamem; \
3812         ip += 2; \
3813
3814                 MINT_IN_CASE(MINT_STARG_I1) STARG(i, gint8); MINT_IN_BREAK;
3815                 MINT_IN_CASE(MINT_STARG_U1) STARG(i, guint8); MINT_IN_BREAK;
3816                 MINT_IN_CASE(MINT_STARG_I2) STARG(i, gint16); MINT_IN_BREAK;
3817                 MINT_IN_CASE(MINT_STARG_U2) STARG(i, guint16); MINT_IN_BREAK;
3818                 MINT_IN_CASE(MINT_STARG_I4) STARG(i, gint32); MINT_IN_BREAK;
3819                 MINT_IN_CASE(MINT_STARG_I8) STARG(l, gint64); MINT_IN_BREAK;
3820                 MINT_IN_CASE(MINT_STARG_R4) STARG(f, float); MINT_IN_BREAK;
3821                 MINT_IN_CASE(MINT_STARG_R8) STARG(f, double); MINT_IN_BREAK;
3822                 MINT_IN_CASE(MINT_STARG_O) STARG(p, gpointer); MINT_IN_BREAK;
3823                 MINT_IN_CASE(MINT_STARG_P) STARG(p, gpointer); MINT_IN_BREAK;
3824
3825                 MINT_IN_CASE(MINT_STARG_VT)
3826                         i32 = READ32(ip + 2);
3827                         --sp;
3828                         memcpy(frame->args + * (guint16 *)(ip + 1), sp->data.p, i32);
3829                         vt_sp -= (i32 + 7) & ~7;
3830                         ip += 4;
3831                         MINT_IN_BREAK;
3832
3833 #define STINARG(datamem, argtype) \
3834         do { \
3835                 int n = * (guint16 *)(ip + 1); \
3836                 * (argtype *)(frame->args + rtm->arg_offsets [n]) = frame->stack_args [n].data.datamem; \
3837                 ip += 2; \
3838         } while (0)
3839
3840                 MINT_IN_CASE(MINT_STINARG_I1) STINARG(i, gint8); MINT_IN_BREAK;
3841                 MINT_IN_CASE(MINT_STINARG_U1) STINARG(i, guint8); MINT_IN_BREAK;
3842                 MINT_IN_CASE(MINT_STINARG_I2) STINARG(i, gint16); MINT_IN_BREAK;
3843                 MINT_IN_CASE(MINT_STINARG_U2) STINARG(i, guint16); MINT_IN_BREAK;
3844                 MINT_IN_CASE(MINT_STINARG_I4) STINARG(i, gint32); MINT_IN_BREAK;
3845                 MINT_IN_CASE(MINT_STINARG_I8) STINARG(l, gint64); MINT_IN_BREAK;
3846                 MINT_IN_CASE(MINT_STINARG_R4) STINARG(f, float); MINT_IN_BREAK;
3847                 MINT_IN_CASE(MINT_STINARG_R8) STINARG(f, double); MINT_IN_BREAK;
3848                 MINT_IN_CASE(MINT_STINARG_O) STINARG(p, gpointer); MINT_IN_BREAK;
3849                 MINT_IN_CASE(MINT_STINARG_P) STINARG(p, gpointer); MINT_IN_BREAK;
3850
3851                 MINT_IN_CASE(MINT_STINARG_VT) {
3852                         int n = * (guint16 *)(ip + 1);
3853                         i32 = READ32(ip + 2);
3854                         memcpy (frame->args + rtm->arg_offsets [n], frame->stack_args [n].data.p, i32);
3855                         ip += 4;
3856                         MINT_IN_BREAK;
3857                 }
3858
3859                 MINT_IN_CASE(MINT_LDARGA)
3860                         sp->data.p = frame->args + * (guint16 *)(ip + 1);
3861                         ip += 2;
3862                         ++sp;
3863                         MINT_IN_BREAK;
3864
3865 #define LDLOC(datamem, argtype) \
3866         sp->data.datamem = * (argtype *)(locals + * (guint16 *)(ip + 1)); \
3867         ip += 2; \
3868         ++sp;
3869
3870                 MINT_IN_CASE(MINT_LDLOC_I1) LDLOC(i, gint8); MINT_IN_BREAK;
3871                 MINT_IN_CASE(MINT_LDLOC_U1) LDLOC(i, guint8); MINT_IN_BREAK;
3872                 MINT_IN_CASE(MINT_LDLOC_I2) LDLOC(i, gint16); MINT_IN_BREAK;
3873                 MINT_IN_CASE(MINT_LDLOC_U2) LDLOC(i, guint16); MINT_IN_BREAK;
3874                 MINT_IN_CASE(MINT_LDLOC_I4) LDLOC(i, gint32); MINT_IN_BREAK;
3875                 MINT_IN_CASE(MINT_LDLOC_I8) LDLOC(l, gint64); MINT_IN_BREAK;
3876                 MINT_IN_CASE(MINT_LDLOC_R4) LDLOC(f, float); MINT_IN_BREAK;
3877                 MINT_IN_CASE(MINT_LDLOC_R8) LDLOC(f, double); MINT_IN_BREAK;
3878                 MINT_IN_CASE(MINT_LDLOC_O) LDLOC(p, gpointer); MINT_IN_BREAK;
3879                 MINT_IN_CASE(MINT_LDLOC_P) LDLOC(p, gpointer); MINT_IN_BREAK;
3880
3881                 MINT_IN_CASE(MINT_LDLOC_VT)
3882                         sp->data.p = vt_sp;
3883                         i32 = READ32(ip + 2);
3884                         memcpy(sp->data.p, locals + * (guint16 *)(ip + 1), i32);
3885                         vt_sp += (i32 + 7) & ~7;
3886                         ip += 4;
3887                         ++sp;
3888                         MINT_IN_BREAK;
3889
3890                 MINT_IN_CASE(MINT_LDLOCA_S)
3891                         sp->data.p = locals + * (guint16 *)(ip + 1);
3892                         ip += 2;
3893                         ++sp;
3894                         MINT_IN_BREAK;
3895
3896 #define STLOC(datamem, argtype) \
3897         --sp; \
3898         * (argtype *)(locals + * (guint16 *)(ip + 1)) = sp->data.datamem; \
3899         ip += 2;
3900
3901                 MINT_IN_CASE(MINT_STLOC_I1) STLOC(i, gint8); MINT_IN_BREAK;
3902                 MINT_IN_CASE(MINT_STLOC_U1) STLOC(i, guint8); MINT_IN_BREAK;
3903                 MINT_IN_CASE(MINT_STLOC_I2) STLOC(i, gint16); MINT_IN_BREAK;
3904                 MINT_IN_CASE(MINT_STLOC_U2) STLOC(i, guint16); MINT_IN_BREAK;
3905                 MINT_IN_CASE(MINT_STLOC_I4) STLOC(i, gint32); MINT_IN_BREAK;
3906                 MINT_IN_CASE(MINT_STLOC_I8) STLOC(l, gint64); MINT_IN_BREAK;
3907                 MINT_IN_CASE(MINT_STLOC_R4) STLOC(f, float); MINT_IN_BREAK;
3908                 MINT_IN_CASE(MINT_STLOC_R8) STLOC(f, double); MINT_IN_BREAK;
3909                 MINT_IN_CASE(MINT_STLOC_O) STLOC(p, gpointer); MINT_IN_BREAK;
3910                 MINT_IN_CASE(MINT_STLOC_P) STLOC(p, gpointer); MINT_IN_BREAK;
3911
3912 #define STLOC_NP(datamem, argtype) \
3913         * (argtype *)(locals + * (guint16 *)(ip + 1)) = sp [-1].data.datamem; \
3914         ip += 2;
3915
3916                 MINT_IN_CASE(MINT_STLOC_NP_I4) STLOC_NP(i, gint32); MINT_IN_BREAK;
3917                 MINT_IN_CASE(MINT_STLOC_NP_O) STLOC_NP(p, gpointer); MINT_IN_BREAK;
3918
3919                 MINT_IN_CASE(MINT_STLOC_VT)
3920                         i32 = READ32(ip + 2);
3921                         --sp;
3922                         memcpy(locals + * (guint16 *)(ip + 1), sp->data.p, i32);
3923                         vt_sp -= (i32 + 7) & ~7;
3924                         ip += 4;
3925                         MINT_IN_BREAK;
3926
3927                 MINT_IN_CASE(MINT_LOCALLOC) {
3928                         if (sp != frame->stack + 1) /*FIX?*/
3929                                 THROW_EX (mono_get_exception_execution_engine (NULL), ip);
3930
3931                         int len = sp [-1].data.i;
3932                         sp [-1].data.p = alloca (len);
3933                         MonoMethodHeader *header = mono_method_get_header_checked (frame->runtime_method->method, &error);
3934                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3935                         if (header->init_locals)
3936                                 memset (sp [-1].data.p, 0, len);
3937                         ++ip;
3938                         MINT_IN_BREAK;
3939                 }
3940 #if 0
3941                 MINT_IN_CASE(MINT_ENDFILTER) ves_abort(); MINT_IN_BREAK;
3942 #endif
3943                 MINT_IN_CASE(MINT_INITOBJ)
3944                         --sp;
3945                         memset (sp->data.vt, 0, READ32(ip + 1));
3946                         ip += 3;
3947                         MINT_IN_BREAK;
3948                 MINT_IN_CASE(MINT_CPBLK)
3949                         sp -= 3;
3950                         if (!sp [0].data.p || !sp [1].data.p)
3951                                 THROW_EX (mono_get_exception_null_reference(), ip - 1);
3952                         ++ip;
3953                         /* FIXME: value and size may be int64... */
3954                         memcpy (sp [0].data.p, sp [1].data.p, sp [2].data.i);
3955                         MINT_IN_BREAK;
3956 #if 0
3957                 MINT_IN_CASE(MINT_CONSTRAINED_) {
3958                         guint32 token;
3959                         /* FIXME: implement */
3960                         ++ip;
3961                         token = READ32 (ip);
3962                         ip += 2;
3963                         MINT_IN_BREAK;
3964                 }
3965 #endif
3966                 MINT_IN_CASE(MINT_INITBLK)
3967                         sp -= 3;
3968                         if (!sp [0].data.p)
3969                                 THROW_EX (mono_get_exception_null_reference(), ip - 1);
3970                         ++ip;
3971                         /* FIXME: value and size may be int64... */
3972                         memset (sp [0].data.p, sp [1].data.i, sp [2].data.i);
3973                         MINT_IN_BREAK;
3974 #if 0
3975                 MINT_IN_CASE(MINT_NO_)
3976                         /* FIXME: implement */
3977                         ip += 2;
3978                         MINT_IN_BREAK;
3979 #endif
3980                 MINT_IN_CASE(MINT_RETHROW)
3981                         /*
3982                          * need to clarify what this should actually do:
3983                          * start the search from the last found handler in
3984                          * this method or continue in the caller or what.
3985                          * Also, do we need to run finally/fault handlers after a retrow?
3986                          * Well, this implementation will follow the usual search
3987                          * for an handler, considering the current ip as throw spot.
3988                          * We need to NULL frame->ex_handler for the later code to
3989                          * actually run the new found handler.
3990                          */
3991                         frame->ex_handler = NULL;
3992                         THROW_EX (frame->ex, ip - 1);
3993                         MINT_IN_BREAK;
3994                 MINT_IN_DEFAULT
3995                         g_print ("Unimplemented opcode: %04x %s at 0x%x\n", *ip, mono_interp_opname[*ip], ip-rtm->code);
3996                         THROW_EX (mono_get_exception_execution_engine ("Unimplemented opcode"), ip);
3997                 }
3998         }
3999
4000         g_assert_not_reached ();
4001         /*
4002          * Exception handling code.
4003          * The exception object is stored in frame->ex.
4004          */
4005
4006         handle_exception:
4007         {
4008                 int i;
4009                 guint32 ip_offset;
4010                 MonoInvocation *inv;
4011                 MonoExceptionClause *clause;
4012                 /*char *message;*/
4013                 MonoObject *ex_obj;
4014
4015 #if DEBUG_INTERP
4016                 if (tracing)
4017                         g_print ("* Handling exception '%s' at IL_%04x\n",
4018                                 frame->ex == NULL ? "** Unknown **" : mono_object_class (frame->ex)->name,
4019                                 rtm == NULL ? 0 : frame->ip - rtm->code);
4020 #endif
4021                 if (die_on_exception)
4022                         goto die_on_ex;
4023
4024                 for (inv = frame; inv; inv = inv->parent) {
4025                         MonoMethod *method;
4026                         if (inv->runtime_method == NULL)
4027                                 continue;
4028                         method = inv->runtime_method->method;
4029                         if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
4030                                 continue;
4031                         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))
4032                                 continue;
4033                         if (inv->ip == NULL)
4034                                 continue;
4035                         ip_offset = inv->ip - inv->runtime_method->code;
4036                         inv->ex_handler = NULL; /* clear this in case we are trhowing an exception while handling one  - this one wins */
4037                         for (i = 0; i < inv->runtime_method->num_clauses; ++i) {
4038                                 clause = &inv->runtime_method->clauses [i];
4039                                 if (clause->flags <= 1 && MONO_OFFSET_IN_CLAUSE (clause, ip_offset)) {
4040                                         if (!clause->flags) {
4041                                                 MonoObject *isinst_obj = mono_object_isinst_checked ((MonoObject*)frame->ex, clause->data.catch_class, &error);
4042                                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4043                                                 if (isinst_obj) {
4044                                                         /*
4045                                                          * OK, we found an handler, now we need to execute the finally
4046                                                          * and fault blocks before branching to the handler code.
4047                                                          */
4048                                                         inv->ex_handler = clause;
4049 #if DEBUG_INTERP
4050                                                         if (tracing)
4051                                                                 g_print ("* Found handler at '%s'\n", method->name);
4052 #endif
4053                                                         goto handle_finally;
4054                                                 }
4055                                         } else {
4056                                                 g_error ("FIXME: handle filter clause");
4057                                         }
4058                                 }
4059                         }
4060                 }
4061                 /*
4062                  * If we get here, no handler was found: print a stack trace.
4063                  */
4064                 for (inv = frame; inv; inv = inv->parent) {
4065                         if (inv->invoke_trap)
4066                                 goto handle_finally;
4067                 }
4068 die_on_ex:
4069                 ex_obj = (MonoObject*)frame->ex;
4070                 mono_unhandled_exception (ex_obj);
4071                 exit (1);
4072         }
4073         handle_finally:
4074         {
4075                 int i;
4076                 guint32 ip_offset;
4077                 MonoExceptionClause *clause;
4078                 GSList *old_list = finally_ips;
4079                 MonoMethod *method = frame->runtime_method->method;
4080                 MonoMethodHeader *header = mono_method_get_header_checked (method, &error);
4081                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4082
4083 #if DEBUG_INTERP
4084                 if (tracing)
4085                         g_print ("* Handle finally IL_%04x\n", endfinally_ip == NULL ? 0 : endfinally_ip - rtm->code);
4086 #endif
4087                 if (rtm == NULL || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
4088                                 || (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))) {
4089                         goto exit_frame;
4090                 }
4091                 ip_offset = frame->ip - rtm->code;
4092
4093                 if (endfinally_ip != NULL)
4094                         finally_ips = g_slist_prepend(finally_ips, (void *)endfinally_ip);
4095                 for (i = 0; i < header->num_clauses; ++i)
4096                         if (frame->ex_handler == &rtm->clauses [i])
4097                                 break;
4098                 while (i > 0) {
4099                         --i;
4100                         clause = &rtm->clauses [i];
4101                         if (MONO_OFFSET_IN_CLAUSE (clause, ip_offset) && (endfinally_ip == NULL || !(MONO_OFFSET_IN_CLAUSE (clause, endfinally_ip - rtm->code)))) {
4102                                 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
4103                                         ip = rtm->code + clause->handler_offset;
4104                                         finally_ips = g_slist_prepend (finally_ips, (gpointer) ip);
4105 #if DEBUG_INTERP
4106                                         if (tracing)
4107                                                 g_print ("* Found finally at IL_%04x with exception: %s\n", clause->handler_offset, frame->ex? "yes": "no");
4108 #endif
4109                                 }
4110                         }
4111                 }
4112
4113                 endfinally_ip = NULL;
4114
4115                 if (old_list != finally_ips && finally_ips) {
4116                         ip = finally_ips->data;
4117                         finally_ips = g_slist_remove (finally_ips, ip);
4118                         sp = frame->stack; /* spec says stack should be empty at endfinally so it should be at the start too */
4119                         goto main_loop;
4120                 }
4121
4122                 /*
4123                  * If an exception is set, we need to execute the fault handler, too,
4124                  * otherwise, we continue normally.
4125                  */
4126                 if (frame->ex)
4127                         goto handle_fault;
4128                 ves_abort();
4129         }
4130         handle_fault:
4131         {
4132                 int i;
4133                 guint32 ip_offset;
4134                 MonoExceptionClause *clause;
4135                 MonoMethod *method = frame->runtime_method->method;
4136                 MonoMethodHeader *header = mono_method_get_header_checked (method, &error);
4137                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4138
4139 #if DEBUG_INTERP
4140                 if (tracing)
4141                         g_print ("* Handle fault\n");
4142 #endif
4143                 ip_offset = frame->ip - rtm->code;
4144                 for (i = 0; i < header->num_clauses; ++i) {
4145                         clause = &rtm->clauses [i];
4146                         if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT && MONO_OFFSET_IN_CLAUSE (clause, ip_offset)) {
4147                                 ip = rtm->code + clause->handler_offset;
4148 #if DEBUG_INTERP
4149                                 if (tracing)
4150                                         g_print ("* Executing handler at IL_%04x\n", clause->handler_offset);
4151 #endif
4152                                 goto main_loop;
4153                         }
4154                 }
4155                 /*
4156                  * If the handler for the exception was found in this method, we jump
4157                  * to it right away, otherwise we return and let the caller run
4158                  * the finally, fault and catch blocks.
4159                  * This same code should be present in the endfault opcode, but it
4160                  * is corrently not assigned in the ECMA specs: LAMESPEC.
4161                  */
4162                 if (frame->ex_handler) {
4163 #if DEBUG_INTERP
4164                         if (tracing)
4165                                 g_print ("* Executing handler at IL_%04x\n", frame->ex_handler->handler_offset);
4166 #endif
4167                         ip = rtm->code + frame->ex_handler->handler_offset;
4168                         sp = frame->stack;
4169                         vt_sp = (unsigned char *) sp + rtm->stack_size;
4170                         sp->data.p = frame->ex;
4171                         ++sp;
4172                         goto main_loop;
4173                 }
4174                 goto exit_frame;
4175         }
4176 exit_frame:
4177         DEBUG_LEAVE ();
4178 }
4179
4180 void
4181 ves_exec_method (MonoInvocation *frame)
4182 {
4183         ThreadContext *context = mono_native_tls_get_value (thread_context_id);
4184         ThreadContext context_struct;
4185         MonoError error;
4186         jmp_buf env;
4187
4188         frame->ex = NULL;
4189
4190         if (setjmp(env)) {
4191                 mono_unhandled_exception ((MonoObject*)frame->ex);
4192                 return;
4193         }
4194         if (context == NULL) {
4195                 context = &context_struct;
4196                 context_struct.domain = mono_domain_get ();
4197                 context_struct.base_frame = frame;
4198                 context_struct.current_frame = NULL;
4199                 context_struct.env_frame = frame;
4200                 context_struct.current_env = &env;
4201                 context_struct.search_for_handler = 0;
4202                 context_struct.managed_code = 0;
4203                 mono_native_tls_set_value (thread_context_id, context);
4204         }
4205         frame->ip = NULL;
4206         frame->parent = context->current_frame;
4207         frame->runtime_method = mono_interp_get_runtime_method (context->domain, frame->method, &error);
4208         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4209         context->managed_code = 1;
4210         ves_exec_method_with_context (frame, context);
4211         context->managed_code = 0;
4212         if (frame->ex) {
4213                 if (context != &context_struct && context->current_env) {
4214                         context->env_frame->ex = frame->ex;
4215                         longjmp (*context->current_env, 1);
4216                 }
4217                 else
4218                         mono_unhandled_exception ((MonoObject*)frame->ex);
4219         }
4220         if (context->base_frame == frame)
4221                 mono_native_tls_set_value (thread_context_id, NULL);
4222         else
4223                 context->current_frame = frame->parent;
4224 }
4225
4226 static int
4227 ves_exec (MonoDomain *domain, MonoAssembly *assembly, int argc, char *argv[])
4228 {
4229         MonoImage *image = mono_assembly_get_image (assembly);
4230         MonoMethod *method;
4231         MonoError error;
4232         int rval;
4233
4234         method = mono_get_method_checked (image, mono_image_get_entry_point (image), NULL, NULL, &error);
4235         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4236
4237         if (!method)
4238                 g_error ("No entry point method found in %s", mono_image_get_filename (image));
4239
4240         rval = mono_runtime_run_main_checked (method, argc, argv, &error);
4241         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4242         return rval;
4243 }
4244
4245 static void
4246 usage (void)
4247 {
4248         fprintf (stderr,
4249                  "mint %s, the Mono ECMA CLI interpreter, (C) 2001, 2002 Ximian, Inc.\n\n"
4250                  "Usage is: mint [options] executable args...\n\n", VERSION);
4251         fprintf (stderr,
4252                  "Runtime Debugging:\n"
4253 #ifdef DEBUG_INTERP
4254                  "   --debug\n"
4255 #endif
4256                  "   --dieonex\n"
4257                  "   --noptr\t\t\tdon't print pointer addresses in trace output\n"
4258                  "   --opcode-count\n"
4259                  "   --print-vtable\n"
4260                  "   --traceclassinit\n"
4261                  "\n"
4262                  "Development:\n"
4263                  "   --debug method_name\n"
4264                  "   --profile\n"
4265                  "   --trace\n"
4266                  "   --traceops\n"
4267                  "   --regression\n"
4268                  "\n"
4269                  "Runtime:\n"
4270                  "   --config filename  load the specified config file instead of the default\n"
4271                  "   --workers n        maximum number of worker threads\n"
4272                 );
4273         exit (1);
4274 }
4275
4276 static MonoBoolean
4277 interp_ves_icall_get_frame_info (gint32 skip, MonoBoolean need_file_info,
4278                           MonoReflectionMethod **method,
4279                           gint32 *iloffset, gint32 *native_offset,
4280                           MonoString **file, gint32 *line, gint32 *column)
4281 {
4282         ThreadContext *context = mono_native_tls_get_value (thread_context_id);
4283         MonoInvocation *inv = context->current_frame;
4284         MonoError error;
4285         int i;
4286
4287         for (i = 0; inv && i < skip; inv = inv->parent)
4288                 if (inv->runtime_method != NULL)
4289                         ++i;
4290
4291         if (iloffset)
4292                 *iloffset = 0;
4293         if (native_offset)
4294                 *native_offset = 0;
4295         if (method) {
4296                 if (inv == NULL) {
4297                         *method = NULL;
4298                 } else {
4299                         *method = mono_method_get_object_checked (context->domain, inv->runtime_method->method, NULL, &error);
4300                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4301                 }
4302         }
4303         if (line)
4304                 *line = 0;
4305         if (need_file_info) {
4306                 if (column)
4307                         *column = 0;
4308                 if (file)
4309                         *file = mono_string_new (mono_domain_get (), "unknown");
4310         }
4311
4312         return TRUE;
4313 }
4314
4315 static MonoArray *
4316 interp_ves_icall_get_trace (MonoException *exc, gint32 skip, MonoBoolean need_file_info)
4317 {
4318         MonoDomain *domain = mono_domain_get ();
4319         MonoArray *res;
4320         MonoArray *ta = exc->trace_ips;
4321         MonoError error;
4322         int i, len;
4323
4324         if (ta == NULL) {
4325                 /* Exception is not thrown yet */
4326                 MonoArray *array = mono_array_new_checked (domain, mono_defaults.stack_frame_class, 0, &error);
4327                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4328                 return array;
4329         }
4330
4331         len = mono_array_length (ta);
4332
4333         res = mono_array_new_checked (domain, mono_defaults.stack_frame_class, len > skip ? len - skip : 0, &error);
4334         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4335
4336         for (i = skip; i < len / 2; i++) {
4337                 MonoStackFrame *sf = (MonoStackFrame *)mono_object_new_checked (domain, mono_defaults.stack_frame_class, &error);
4338                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4339                 gushort *ip = mono_array_get (ta, gpointer, 2 * i + 1);
4340                 RuntimeMethod *rtm = mono_array_get (ta, gpointer, 2 * i);
4341
4342                 if (rtm != NULL) {
4343                         sf->method = mono_method_get_object_checked (domain, rtm->method, NULL, &error);
4344                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
4345                         sf->native_offset = ip - rtm->code;
4346                 }
4347
4348 #if 0
4349                 sf->il_offset = mono_debug_il_offset_from_address (ji->method, sf->native_offset, domain);
4350
4351                 if (need_file_info) {
4352                         gchar *filename;
4353
4354                         filename = mono_debug_source_location_from_address (ji->method, sf->native_offset, &sf->line, domain);
4355
4356                         sf->filename = filename? mono_string_new (domain, filename): NULL;
4357                         sf->column = 0;
4358
4359                         g_free (filename);
4360                 }
4361 #endif
4362
4363                 mono_array_set (res, gpointer, i, sf);
4364         }
4365
4366         return res;
4367 }
4368
4369 void
4370 mono_interp_init ()
4371 {
4372         mono_native_tls_alloc (&thread_context_id, NULL);
4373     mono_native_tls_set_value (thread_context_id, NULL);
4374         mono_os_mutex_init_recursive (&runtime_method_lookup_section);
4375         mono_os_mutex_init_recursive (&create_method_pointer_mutex);
4376
4377         mono_interp_transform_init ();
4378 }
4379
4380 typedef int (*TestMethod) (void);
4381
4382 static void
4383 interp_regression_step (MonoImage *image, int verbose, int *total_run, int *total, GTimer *timer, MonoDomain *domain)
4384 {
4385         int result, expected, failed, cfailed, run;
4386         double elapsed, transform_time;
4387         int i;
4388         MonoObject *result_obj;
4389         static gboolean filter_method_init = FALSE;
4390         static const char *filter_method = NULL;
4391
4392         g_print ("Test run: image=%s\n", mono_image_get_filename (image));
4393         cfailed = failed = run = 0;
4394         transform_time = elapsed = 0.0;
4395
4396 #if 0
4397         /* fixme: ugly hack - delete all previously compiled methods */
4398         if (domain_jit_info (domain)) {
4399                 g_hash_table_destroy (domain_jit_info (domain)->jit_trampoline_hash);
4400                 domain_jit_info (domain)->jit_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4401                 mono_internal_hash_table_destroy (&(domain->jit_code_hash));
4402                 mono_jit_code_hash_init (&(domain->jit_code_hash));
4403         }
4404 #endif
4405
4406         g_timer_start (timer);
4407         for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
4408                 MonoObject *exc = NULL;
4409                 MonoError error;
4410                 MonoMethod *method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL, NULL, &error);
4411                 if (!method) {
4412                         mono_error_cleanup (&error); /* FIXME don't swallow the error */
4413                         continue;
4414                 }
4415
4416                 if (!filter_method_init) {
4417                         filter_method = g_getenv ("INTERP_FILTER_METHOD");
4418                         filter_method_init = TRUE;
4419                 }
4420                 gboolean filter = FALSE;
4421                 if (filter_method) {
4422                         const char *name = filter_method;
4423
4424                         if ((strchr (name, '.') > name) || strchr (name, ':')) {
4425                                 MonoMethodDesc *desc = mono_method_desc_new (name, TRUE);
4426                                 filter = mono_method_desc_full_match (desc, method);
4427                                 mono_method_desc_free (desc);
4428                         } else {
4429                                 filter = strcmp (method->name, name) == 0;
4430                         }
4431                 } else { /* no filter, check for `Category' attribute on method */
4432                         filter = TRUE;
4433                         MonoCustomAttrInfo* ainfo = mono_custom_attrs_from_method_checked (method, &error);
4434                         mono_error_cleanup (&error);
4435
4436                         if (ainfo) {
4437                                 int j;
4438                                 for (j = 0; j < ainfo->num_attrs && filter; ++j) {
4439                                         MonoCustomAttrEntry *centry = &ainfo->attrs [j];
4440                                         if (centry->ctor == NULL)
4441                                                 continue;
4442
4443                                         MonoClass *klass = centry->ctor->klass;
4444                                         if (strcmp (klass->name, "CategoryAttribute"))
4445                                                 continue;
4446
4447                                         MonoObject *obj = mono_custom_attrs_get_attr_checked (ainfo, klass, &error);
4448                                         /* FIXME: there is an ordering problem if there're multiple attributes, do this instead:
4449                                          * MonoObject *obj = create_custom_attr (ainfo->image, centry->ctor, centry->data, centry->data_size, &error); */
4450                                         mono_error_cleanup (&error);
4451                                         MonoMethod *getter = mono_class_get_method_from_name (klass, "get_Category", -1);
4452                                         MonoObject *str = mono_interp_runtime_invoke (getter, obj, NULL, &exc, &error);
4453                                         mono_error_cleanup (&error);
4454                                         char *utf8_str = mono_string_to_utf8_checked ((MonoString *) str, &error);
4455                                         mono_error_cleanup (&error);
4456                                         if (!strcmp (utf8_str, "!INTERPRETER")) {
4457                                                 g_print ("skip %s...\n", method->name);
4458                                                 filter = FALSE;
4459                                         }
4460                                 }
4461                         }
4462                 }
4463                 if (strncmp (method->name, "test_", 5) == 0 && filter) {
4464                         MonoError interp_error;
4465                         MonoObject *exc = NULL;
4466
4467                         result_obj = mono_interp_runtime_invoke (method, NULL, NULL, &exc, &interp_error);
4468                         if (!mono_error_ok (&interp_error)) {
4469                                 cfailed++;
4470                                 g_print ("Test '%s' execution failed.\n", method->name);
4471                         } else if (exc != NULL) {
4472                                 g_print ("Exception in Test '%s' occured:\n", method->name);
4473                                 mono_object_describe (exc);
4474                                 run++;
4475                                 failed++;
4476                         } else {
4477                                 result = *(gint32 *) mono_object_unbox (result_obj);
4478                                 expected = atoi (method->name + 5);  // FIXME: oh no.
4479                                 run++;
4480
4481                                 if (result != expected) {
4482                                         failed++;
4483                                         g_print ("Test '%s' failed result (got %d, expected %d).\n", method->name, result, expected);
4484                                 }
4485                         }
4486                 }
4487         }
4488         g_timer_stop (timer);
4489         elapsed = g_timer_elapsed (timer, NULL);
4490         if (failed > 0 || cfailed > 0){
4491                 g_print ("Results: total tests: %d, failed: %d, cfailed: %d (pass: %.2f%%)\n",
4492                                 run, failed, cfailed, 100.0*(run-failed-cfailed)/run);
4493         } else {
4494                 g_print ("Results: total tests: %d, all pass \n",  run);
4495         }
4496
4497         g_print ("Elapsed time: %f secs (%f, %f)\n\n", elapsed,
4498                         elapsed - transform_time, transform_time);
4499         *total += failed + cfailed;
4500         *total_run += run;
4501 }
4502 static int
4503 interp_regression (MonoImage *image, int verbose, int *total_run)
4504 {
4505         MonoMethod *method;
4506         GTimer *timer = g_timer_new ();
4507         MonoDomain *domain = mono_domain_get ();
4508         guint32 i;
4509         int total;
4510
4511         /* load the metadata */
4512         for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
4513                 MonoError error;
4514                 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL, NULL, &error);
4515                 if (!method) {
4516                         mono_error_cleanup (&error);
4517                         continue;
4518                 }
4519                 mono_class_init (method->klass);
4520         }
4521
4522         total = 0;
4523         *total_run = 0;
4524         interp_regression_step (image, verbose, total_run, &total, timer, domain);
4525
4526         g_timer_destroy (timer);
4527         return total;
4528 }
4529
4530 int
4531 mono_interp_regression_list (int verbose, int count, char *images [])
4532 {
4533         int i, total, total_run, run;
4534
4535         total_run = total = 0;
4536         for (i = 0; i < count; ++i) {
4537                 MonoAssembly *ass = mono_assembly_open (images [i], NULL);
4538                 if (!ass) {
4539                         g_warning ("failed to load assembly: %s", images [i]);
4540                         continue;
4541                 }
4542                 total += interp_regression (mono_assembly_get_image (ass), verbose, &run);
4543                 total_run += run;
4544         }
4545         if (total > 0) {
4546                 g_print ("Overall results: tests: %d, failed: %d (pass: %.2f%%)\n", total_run, total, 100.0*(total_run-total)/total_run);
4547         } else {
4548                 g_print ("Overall results: tests: %d, 100%% pass\n", total_run);
4549         }
4550
4551         return total;
4552 }
4553