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
  41         bte = state->iptr->sx.s23.s3.bte;
  42
  43         /* XXX this is an ugly if-chain but twisti did not want a function */
  44         /* pointer in builtintable_entry for this, so here you go.. ;)     */
  45
  46         if (ISBUILTIN(BUILTIN_new)) {
  47                 dv->type = TYPE_ADR;
  48 #if defined(TYPECHECK_TYPEINFERER)
  49                 assert(state->iptr[-1].opc == ICMD_ACONST);
  50                 typeinfo_init_class(&(dv->typeinfo), state->iptr[-1].sx.val.c);
  51 #else
  52                 if (state->iptr[-1].opc != ICMD_ACONST)
  53                         TYPECHECK_VERIFYERROR_bool("illegal instruction: builtin_new without class");
  54                 TYPEINFO_INIT_NEWOBJECT(dv->typeinfo,state->iptr);
  55 #endif
  56         }
  57         else if (ISBUILTIN(BUILTIN_newarray_boolean)) {
  58                 TYPECHECK_INT(OP1);
  59                 dv->type = TYPE_ADR;
  60                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_BOOLEAN);
  61         }
  62         else if (ISBUILTIN(BUILTIN_newarray_char)) {
  63                 TYPECHECK_INT(OP1);
  64                 dv->type = TYPE_ADR;
  65                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_CHAR);
  66         }
  67         else if (ISBUILTIN(BUILTIN_newarray_float)) {
  68                 TYPECHECK_INT(OP1);
  69                 dv->type = TYPE_ADR;
  70                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_FLOAT);
  71         }
  72         else if (ISBUILTIN(BUILTIN_newarray_double)) {
  73                 TYPECHECK_INT(OP1);
  74                 dv->type = TYPE_ADR;
  75                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_DOUBLE);
  76         }
  77         else if (ISBUILTIN(BUILTIN_newarray_byte)) {
  78                 TYPECHECK_INT(OP1);
  79                 dv->type = TYPE_ADR;
  80                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_BYTE);
  81         }
  82         else if (ISBUILTIN(BUILTIN_newarray_short)) {
  83                 TYPECHECK_INT(OP1);
  84                 dv->type = TYPE_ADR;
  85                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_SHORT);
  86         }
  87         else if (ISBUILTIN(BUILTIN_newarray_int)) {
  88                 TYPECHECK_INT(OP1);
  89                 dv->type = TYPE_ADR;
  90                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_INT);
  91         }
  92         else if (ISBUILTIN(BUILTIN_newarray_long)) {
  93                 TYPECHECK_INT(OP1);
  94                 dv->type = TYPE_ADR;
  95                 TYPEINFO_INIT_PRIMITIVE_ARRAY(dv->typeinfo,ARRAYTYPE_LONG);
  96         }
  97         else if (ISBUILTIN(BUILTIN_newarray))
  98         {
  99                 TYPECHECK_INT(OP1);
 100                 if (state->iptr[-1].opc != ICMD_ACONST)
 101                         TYPECHECK_VERIFYERROR_bool("illegal instruction: builtin_newarray without class");
 102                 /* XXX check that it is an array class(ref) */
 103                 dv->type = TYPE_ADR;
 104                 typeinfo_init_class(&(dv->typeinfo),state->iptr[-1].sx.val.c);
 105         }
 106         else if (ISBUILTIN(BUILTIN_arrayinstanceof))
 107         {
 108                 TYPECHECK_ADR(OP1);
 109                 if (state->iptr[-1].opc != ICMD_ACONST)
 110                         TYPECHECK_VERIFYERROR_bool("illegal instruction: builtin_arrayinstanceof without class");
 111                 dv->type = TYPE_INT;
 112                 /* XXX check that it is an array class(ref) */
 113         }
 114         else {
 115                 methoddesc *md;
 116                 u1 rtype;
 117 #if !defined(TYPECHECK_TYPEINFERER)
 118                 s4 i;
 119 #endif
 120 #if defined(TYPECHECK_STACKBASED)
 121                 typedescriptor *av;
 122 #endif
 123
 124                 /* verify a generic builtin call */
 125
 126                 TYPECHECK_COUNT(stat_ins_builtin_gen);
 127
 128                 md = bte->md;
 129 #if !defined(TYPECHECK_TYPEINFERER)
 130                 i = md->paramcount;
 131
 132                 /* check the types of the arguments on the stack */
 133
 134 #if defined(TYPECHECK_STACKBASED)
 135                 av = stack - (md->paramslots - 1);
 136 #endif
 137
 138                 for (i--; i >= 0; i--) {
 139 #if defined(TYPECHECK_VARIABLESBASED)
 140                         varinfo *av = VAR(state->iptr->sx.s23.s2.args[i]);
 141 #endif
 142
 143                         if (av->type != md->paramtypes[i].type) {
 144                                 TYPECHECK_VERIFYERROR_bool("parameter type mismatch for builtin method");
 145                         }
 146
 147 #ifdef TYPECHECK_DEBUG
 148                         /* generic builtins may only take primitive types and java.lang.Object references */
 149                         if (av->type == TYPE_ADR && md->paramtypes[i].classref->name != utf_java_lang_Object) {
 150                                 *exceptionptr = new_internalerror("generic builtin method with non-generic reference parameter");
 151                                 return false;
 152                         }
 153 #endif
 154
 155 #if defined(TYPECHECK_STACKBASED)
 156                         av += (IS_2_WORD_TYPE(av->type)) ? 2 : 1;
 157 #endif
 158                 }
 159 #endif /* !defined(TYPECHECK_TYPEINFERER) */
 160
 161                 /* set the return type */
 162
 163                 rtype = md->returntype.type;
 164                 if (rtype != TYPE_VOID) {
 165                         dv->type = rtype;
 166                         if (!typeinfo_init_from_typedesc(&(md->returntype),NULL,&(dv->typeinfo)))
 167                                 return false;
 168                 }
 169         }
 170 }
 171
 172 #undef ISBUILTIN
 173
 174 /*
 175  * These are local overrides for various environment variables in Emacs.
 176  * Please do not remove this and leave it at the end of the file, where
 177  * Emacs will automagically detect them.
 178  * ---------------------------------------------------------------------
 179  * Local variables:
 180  * mode: c
 181  * indent-tabs-mode: t
 182  * c-basic-offset: 4
 183  * tab-width: 4
 184  * End:
 185  * vim:noexpandtab:sw=4:ts=4:filetype=c:
 186  */