src/vm/jit/verify/typecheck-builtins.inc

   1 /* src/vm/jit/verify/typecheck-builtins.inc - type checking for ICMD_BUILTIN
   2
   3    Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    Contact: cacao@cacaojvm.org
  26
  27    Authors: Edwin Steiner
  28
  29    Changes:
  30
  31    $Id$
  32
  33 */
  34
  35
  36 #define ISBUILTIN(v)   (bte->fp == (functionptr) (v))
  37
  38 {
  39         builtintable_entry *bte;
  40     classref_or_classinfo cls;
  41
  42         bte = state->iptr->sx.s23.s3.bte;
  43
  44         /* XXX this is an ugly if-chain but twisti did not want a function */
  45         /* pointer in builtintable_entry for this, so here you go.. ;)     */
  46
  47         if (ISBUILTIN(BUILTIN_new)) {
  48                 if (state->iptr[-1].opc != ICMD_ACONST)
  49                         TYPECHECK_VERIFYERROR_bool("illegal instruction: builtin_new without class");
  50                 cls = state->iptr[-1].sx.val.c;
  51                 dv->type = TYPE_ADR;
  52                 TYPEINFO_INIT_NEWOBJECT(dv->typeinfo,state->iptr);
  53         }
  54         else if (ISBUILTIN(BUILTIN_newarray_boolean)) {
  55                 TYPECHECK_INT(OP1);
  56                 dv->type = TYPE_ADR;
  57                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_BOOLEAN);
  58         }
  59         else if (ISBUILTIN(BUILTIN_newarray_char)) {
  60                 TYPECHECK_INT(OP1);
  61                 dv->type = TYPE_ADR;
  62                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_CHAR);
  63         }
  64         else if (ISBUILTIN(BUILTIN_newarray_float)) {
  65                 TYPECHECK_INT(OP1);
  66                 dv->type = TYPE_ADR;
  67                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_FLOAT);
  68         }
  69         else if (ISBUILTIN(BUILTIN_newarray_double)) {
  70                 TYPECHECK_INT(OP1);
  71                 dv->type = TYPE_ADR;
  72                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_DOUBLE);
  73         }
  74         else if (ISBUILTIN(BUILTIN_newarray_byte)) {
  75                 TYPECHECK_INT(OP1);
  76                 dv->type = TYPE_ADR;
  77                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_BYTE);
  78         }
  79         else if (ISBUILTIN(BUILTIN_newarray_short)) {
  80                 TYPECHECK_INT(OP1);
  81                 dv->type = TYPE_ADR;
  82                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_SHORT);
  83         }
  84         else if (ISBUILTIN(BUILTIN_newarray_int)) {
  85                 TYPECHECK_INT(OP1);
  86                 dv->type = TYPE_ADR;
  87                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_INT);
  88         }
  89         else if (ISBUILTIN(BUILTIN_newarray_long)) {
  90                 TYPECHECK_INT(OP1);
  91                 dv->type = TYPE_ADR;
  92                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_LONG);
  93         }
  94         else if (ISBUILTIN(BUILTIN_newarray))
  95         {
  96                 TYPECHECK_INT(OP1);
  97                 if (state->iptr[-1].opc != ICMD_ACONST)
  98                         TYPECHECK_VERIFYERROR_bool("illegal instruction: builtin_newarray without class");
  99                 /* XXX check that it is an array class(ref) */
 100                 dv->type = TYPE_ADR;
 101                 typeinfo_init_class(&(dv->typeinfo),state->iptr[-1].sx.val.c);
 102         }
 103         else if (ISBUILTIN(BUILTIN_arrayinstanceof))
 104         {
 105                 TYPECHECK_ADR(OP1);
 106                 if (state->iptr[-1].opc != ICMD_ACONST)
 107                         TYPECHECK_VERIFYERROR_bool("illegal instruction: builtin_arrayinstanceof without class");
 108                 dv->type = TYPE_INT;
 109                 /* XXX check that it is an array class(ref) */
 110         }
 111         else {
 112                 methoddesc *md;
 113                 s4 i;
 114                 u1 rtype;
 115 #if defined(TYPECHECK_STACKBASED)
 116                 typedescriptor *av;
 117 #endif
 118
 119                 /* verify a generic builtin call */
 120
 121                 TYPECHECK_COUNT(stat_ins_builtin_gen);
 122
 123                 md = bte->md;
 124                 i = md->paramcount;
 125
 126                 /* check the types of the arguments on the stack */
 127
 128 #if defined(TYPECHECK_STACKBASED)
 129                 av = stack - (md->paramslots - 1);
 130 #endif
 131
 132                 for (i--; i >= 0; i--) {
 133 #if defined(TYPECHECK_VARIABLESBASED)
 134                         varinfo *av = VAR(state->iptr->sx.s23.s2.args[i]);
 135 #endif
 136
 137                         if (av->type != md->paramtypes[i].type) {
 138                                 TYPECHECK_VERIFYERROR_bool("parameter type mismatch for builtin method");
 139                         }
 140
 141 #ifdef TYPECHECK_DEBUG
 142                         /* generic builtins may only take primitive types and java.lang.Object references */
 143                         if (av->type == TYPE_ADR && md->paramtypes[i].classref->name != utf_java_lang_Object) {
 144                                 *exceptionptr = new_internalerror("generic builtin method with non-generic reference parameter");
 145                                 return false;
 146                         }
 147 #endif
 148
 149 #if defined(TYPECHECK_STACKBASED)
 150                         av += (IS_2_WORD_TYPE(av->type)) ? 2 : 1;
 151 #endif
 152                 }
 153
 154                 /* set the return type */
 155
 156                 rtype = md->returntype.type;
 157                 if (rtype != TYPE_VOID) {
 158                         dv->type = rtype;
 159                         if (!typeinfo_init_from_typedesc(&(md->returntype),NULL,&(dv->typeinfo)))
 160                                 return false;
 161                 }
 162         }
 163 }
 164
 165 #undef ISBUILTIN
 166
 167 /*
 168  * These are local overrides for various environment variables in Emacs.
 169  * Please do not remove this and leave it at the end of the file, where
 170  * Emacs will automagically detect them.
 171  * ---------------------------------------------------------------------
 172  * Local variables:
 173  * mode: c
 174  * indent-tabs-mode: t
 175  * c-basic-offset: 4
 176  * tab-width: 4
 177  * End:
 178  * vim:noexpandtab:sw=4:ts=4:filetype=c:
 179  */