1 /*-------------------------------------------------------------------------
2 SDCCsymt.c - Code file for Symbols table related structures and MACRO's.
3 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published by the
7 Free Software Foundation; either version 2, or (at your option) any
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 In other words, you are welcome to use, share and improve this program.
20 You are forbidden to forbid anyone else to use, share and improve
21 what you give them. Help stamp out software-hoarding!
22 -------------------------------------------------------------------------*/
28 char *nounName(sym_link *sl) {
29 switch (SPEC_NOUN(sl))
32 if (SPEC_LONG(sl)) return "long";
33 if (sl->select.s._short) return "short";
36 case V_FLOAT: return "float";
37 case V_CHAR: return "char";
38 case V_VOID: return "void";
39 case V_STRUCT: return "struct";
40 case V_LABEL: return "label";
41 case V_BIT: return "bit";
42 case V_SBIT: return "sbit";
43 case V_DOUBLE: return "double";
48 bucket *SymbolTab[256]; /* the symbol table */
49 bucket *StructTab[256]; /* the structure table */
50 bucket *TypedefTab[256]; /* the typedef table */
51 bucket *LabelTab[256]; /* the Label table */
52 bucket *enumTab[256]; /* enumerated table */
54 /*------------------------------------------------------------------*/
55 /* initSymt () - initialises symbol table related stuff */
56 /*------------------------------------------------------------------*/
62 for (i = 0; i < 256; i++)
63 SymbolTab[i] = StructTab[i] = (void *) NULL;
67 /*-----------------------------------------------------------------*/
68 /* newBucket - allocates & returns a new bucket */
69 /*-----------------------------------------------------------------*/
75 bp = Safe_calloc (1, sizeof (bucket));
80 /*-----------------------------------------------------------------*/
81 /* hashKey - computes the hashkey given a symbol name */
82 /*-----------------------------------------------------------------*/
84 hashKey (const char *s)
86 unsigned long key = 0;
93 /*-----------------------------------------------------------------*/
94 /* addSym - adds a symbol to the hash Table */
95 /*-----------------------------------------------------------------*/
97 addSym (bucket ** stab,
104 int i; /* index into the hash Table */
105 bucket *bp; /* temp bucket * */
108 if (getenv("DEBUG_SANITY")) {
109 fprintf (stderr, "addSym: %s ", sname);
111 /* make sure the type is complete and sane */
112 checkTypeSanity(((symbol *)sym)->etype, ((symbol *)sym)->name);
115 /* the symbols are always added at the head of the list */
117 /* get a free entry */
118 bp = Safe_calloc (1, sizeof (bucket));
120 bp->sym = sym; /* update the symbol pointer */
121 bp->level = level; /* update the nest level */
123 strcpy (bp->name, sname); /* copy the name into place */
125 /* if this is the first entry */
128 bp->prev = bp->next = (void *) NULL; /* point to nothing */
131 /* not first entry then add @ head of list */
141 /*-----------------------------------------------------------------*/
142 /* deleteSym - deletes a symbol from the hash Table entry */
143 /*-----------------------------------------------------------------*/
145 deleteSym (bucket ** stab, void *sym, char *sname)
153 /* find the symbol */
156 if (bp->sym == sym) /* found it then break out */
157 break; /* of the loop */
161 if (!bp) /* did not find it */
163 /* if this is the first one in the chain */
167 if (stab[i]) /* if chain ! empty */
168 stab[i]->prev = (void *) NULL;
170 /* middle || end of chain */
173 if (bp->next) /* if not end of chain */
174 bp->next->prev = bp->prev;
176 bp->prev->next = bp->next;
181 /*-----------------------------------------------------------------*/
182 /* findSym - finds a symbol in a table */
183 /*-----------------------------------------------------------------*/
185 findSym (bucket ** stab, void *sym, const char *sname)
189 bp = stab[hashKey (sname)];
192 if (bp->sym == sym || strcmp (bp->name, sname) == 0)
197 return (bp ? bp->sym : (void *) NULL);
200 /*-----------------------------------------------------------------*/
201 /* findSymWithLevel - finds a symbol with a name & level */
202 /*-----------------------------------------------------------------*/
204 findSymWithLevel (bucket ** stab, symbol * sym)
208 bp = stab[hashKey (sym->name)];
211 ** do the search from the head of the list since the
212 ** elements are added at the head it is ensured that
213 ** we will find the deeper definitions before we find
214 ** the global ones. we need to check for symbols with
215 ** level <= to the level given, if levels match then block
216 ** numbers need to match as well
221 if (strcmp (bp->name, sym->name) == 0 && bp->level <= sym->level)
223 /* if this is parameter then nothing else need to be checked */
224 if (((symbol *) (bp->sym))->_isparm)
226 /* if levels match then block numbers hsould also match */
227 if (bp->level && bp->level == sym->level && bp->block == sym->block)
229 /* if levels don't match then we are okay */
230 if (bp->level && bp->level != sym->level && bp->block <= sym->block)
232 /* if this is a global variable then we are ok too */
240 return (void *) NULL;
243 /*-----------------------------------------------------------------*/
244 /* findSymWithBlock - finds a symbol with name in with a block */
245 /*-----------------------------------------------------------------*/
247 findSymWithBlock (bucket ** stab, symbol * sym, int block)
251 bp = stab[hashKey (sym->name)];
254 if (strcmp (bp->name, sym->name) == 0 &&
260 return (bp ? bp->sym : (void *) NULL);
263 /*------------------------------------------------------------------*/
264 /* newSymbol () - returns a new pointer to a symbol */
265 /*------------------------------------------------------------------*/
267 newSymbol (char *name, int scope)
271 sym = Safe_calloc (1, sizeof (symbol));
273 strcpy (sym->name, name); /* copy the name */
274 sym->level = scope; /* set the level */
275 sym->block = currBlockno;
276 sym->lineDef = yylineno; /* set the line number */
280 /*------------------------------------------------------------------*/
281 /* newLink - creates a new link (declarator,specifier) */
282 /*------------------------------------------------------------------*/
288 p = Safe_calloc (1, sizeof (sym_link));
293 /*------------------------------------------------------------------*/
294 /* newStruct - creats a new structdef from the free list */
295 /*------------------------------------------------------------------*/
297 newStruct (char *tag)
301 s = Safe_calloc (1, sizeof (structdef));
303 strcpy (s->tag, tag); /* copy the tag */
307 /*------------------------------------------------------------------*/
308 /* pointerTypes - do the computation for the pointer types */
309 /*------------------------------------------------------------------*/
311 pointerTypes (sym_link * ptr, sym_link * type)
316 /* find the first pointer type */
317 while (ptr && !IS_PTR (ptr))
320 /* could not find it */
322 if (!ptr || IS_SPEC (ptr) ||
323 DCL_TYPE(ptr)!=UPOINTER)
326 if (!ptr || IS_SPEC (ptr))
329 if (IS_PTR(ptr) && DCL_TYPE(ptr)!=UPOINTER) {
330 pointerTypes (ptr->next, type);
335 /* change the pointer type depending on the
336 storage class of the type */
339 DCL_PTR_CONST (ptr) = SPEC_CONST (type);
340 DCL_PTR_VOLATILE (ptr) = SPEC_VOLATILE (type);
341 switch (SPEC_SCLS (type))
344 DCL_TYPE (ptr) = FPOINTER;
347 DCL_TYPE (ptr) = IPOINTER;
350 DCL_TYPE (ptr) = PPOINTER;
353 DCL_TYPE (ptr) = POINTER;
356 DCL_PTR_CONST (ptr) = port->mem.code_ro;
357 DCL_TYPE (ptr) = CPOINTER;
360 DCL_TYPE (ptr) = EEPPOINTER;
363 DCL_TYPE (ptr) = GPOINTER;
366 /* the storage class of type ends here */
369 SPEC_VOLATILE (type) = 0;
372 /* now change all the remaining unknown pointers
373 to generic pointers */
376 if (!IS_SPEC (ptr) && DCL_TYPE (ptr) == UPOINTER)
377 DCL_TYPE (ptr) = GPOINTER;
381 /* same for the type although it is highly unlikely that
382 type will have a pointer */
385 if (!IS_SPEC (type) && DCL_TYPE (type) == UPOINTER)
386 DCL_TYPE (type) = GPOINTER;
392 /*------------------------------------------------------------------*/
393 /* addDecl - adds a declarator @ the end of a chain */
394 /*------------------------------------------------------------------*/
396 addDecl (symbol * sym, int type, sym_link * p)
402 /* if we are passed a link then set head & tail */
411 head = tail = newLink ();
412 DCL_TYPE (head) = type;
415 /* if this is the first entry */
423 if (IS_SPEC (sym->etype) && IS_SPEC (head) && head == tail)
425 sym->etype = mergeSpec (sym->etype, head, sym->name);
429 if (IS_SPEC (sym->etype) && !IS_SPEC (head) && head == tail)
432 while (t->next != sym->etype)
435 tail->next = sym->etype;
439 sym->etype->next = head;
445 /* if the type is an unknown pointer and has
446 a tspec then take the storage class const & volatile
447 attribute from the tspec & make it those of this
451 //DCL_TYPE (p) == UPOINTER &&
454 if (!IS_SPEC (sym->etype))
456 sym->etype = sym->etype->next = newLink ();
457 sym->etype->class = SPECIFIER;
459 SPEC_SCLS (sym->etype) = SPEC_SCLS (DCL_TSPEC (p));
460 SPEC_CONST (sym->etype) = SPEC_CONST (DCL_TSPEC (p));
461 SPEC_VOLATILE (sym->etype) = SPEC_VOLATILE (DCL_TSPEC (p));
462 DCL_TSPEC (p) = NULL;
467 /*------------------------------------------------------------------
468 checkTypeSanity: prevent the user from doing e.g.:
470 ------------------------------------------------------------------*/
471 void checkTypeSanity(sym_link *etype, char *name) {
475 if (getenv("DEBUG_SANITY")) {
476 fprintf (stderr, "sanity check skipped for %s (etype==0)\n", name);
481 if (!IS_SPEC(etype)) {
482 if (getenv("DEBUG_SANITY")) {
483 fprintf (stderr, "sanity check skipped for %s (!IS_SPEC)\n", name);
488 noun=nounName(etype);
490 if (getenv("DEBUG_SANITY")) {
491 fprintf (stderr, "checking sanity for %s %x\n", name, (int)etype);
494 if ((SPEC_NOUN(etype)==V_CHAR ||
495 SPEC_NOUN(etype)==V_FLOAT ||
496 SPEC_NOUN(etype)==V_DOUBLE ||
497 SPEC_NOUN(etype)==V_VOID) &&
498 (etype->select.s._short || SPEC_LONG(etype))) {
499 // long or short for char float double or void
500 werror (E_LONG_OR_SHORT_INVALID, noun, name);
502 if ((SPEC_NOUN(etype)==V_FLOAT ||
503 SPEC_NOUN(etype)==V_DOUBLE ||
504 SPEC_NOUN(etype)==V_VOID) &&
505 (etype->select.s._signed || SPEC_USIGN(etype))) {
506 // signed or unsigned for float double or void
507 werror (E_SIGNED_OR_UNSIGNED_INVALID, noun, name);
510 // special case for "short"
511 if (etype->select.s._short) {
512 SPEC_NOUN(etype) = options.shortis8bits ? V_CHAR : V_INT;
513 etype->select.s._short = 0;
517 "const a;" or "data b;" or "signed s" or "long l"
519 if (!SPEC_NOUN(etype)) {
520 SPEC_NOUN(etype)=V_INT;
523 if (etype->select.s._signed && SPEC_USIGN(etype)) {
524 // signed AND unsigned
525 werror (E_SIGNED_AND_UNSIGNED_INVALID, noun, name);
527 if (etype->select.s._short && SPEC_LONG(etype)) {
529 werror (E_LONG_AND_SHORT_INVALID, noun, name);
534 /*------------------------------------------------------------------*/
535 /* mergeSpec - merges two specifiers and returns the new one */
536 /*------------------------------------------------------------------*/
537 #define LAST_MINUTE_2_3_0_FIX
539 mergeSpec (sym_link * dest, sym_link * src, char *name)
542 #ifdef LAST_MINUTE_2_3_0_FIX
545 if (!IS_SPEC(dest)) {
546 // This should not happen
547 fprintf (stderr, "*** internal error: can't merge declarators\n");
550 // here we have a declarator as source, reverse them
554 while (!IS_SPEC(dest)) {
555 // and find the specifier
563 if (getenv("DEBUG_mergeSpec")) {
564 fprintf (stderr, "mergeSpec: \"%s\"\n", name);
567 if (SPEC_NOUN(src)) {
568 if (!SPEC_NOUN(dest)) {
569 SPEC_NOUN(dest)=SPEC_NOUN(src);
571 /* we shouldn't redeclare the type */
572 if (getenv("DEBUG_SANITY")) {
573 fprintf (stderr, "mergeSpec: ");
575 werror(E_TWO_OR_MORE_DATA_TYPES, name);
579 if (SPEC_SCLS(src)) {
580 /* if destination has no storage class */
581 if (!SPEC_SCLS (dest) || SPEC_SCLS(dest)==S_REGISTER) {
582 SPEC_SCLS (dest) = SPEC_SCLS (src);
584 if (getenv("DEBUG_SANITY")) {
585 fprintf (stderr, "mergeSpec: ");
587 werror(E_TWO_OR_MORE_STORAGE_CLASSES, name);
591 /* copy all the specifications */
593 // we really should do:
595 if (SPEC_what(src)) {
596 if (SPEC_what(dest)) {
597 werror(W_DUPLICATE_SPEC, "what");
599 SPEC_what(dst)|=SPEC_what(src);
602 // but there are more important thing right now
604 SPEC_LONG (dest) |= SPEC_LONG (src);
605 dest->select.s._short|=src->select.s._short;
606 SPEC_USIGN (dest) |= SPEC_USIGN (src);
607 dest->select.s._signed|=src->select.s._signed;
608 SPEC_STAT (dest) |= SPEC_STAT (src);
609 SPEC_EXTR (dest) |= SPEC_EXTR (src);
610 SPEC_ABSA (dest) |= SPEC_ABSA (src);
611 SPEC_RENT (dest) |= SPEC_RENT (src);
612 SPEC_INTN (dest) |= SPEC_INTN (src);
613 SPEC_BANK (dest) |= SPEC_BANK (src);
614 SPEC_VOLATILE (dest) |= SPEC_VOLATILE (src);
615 SPEC_CRTCL (dest) |= SPEC_CRTCL (src);
616 SPEC_ADDR (dest) |= SPEC_ADDR (src);
617 SPEC_OCLS (dest) = SPEC_OCLS (src);
618 SPEC_BLEN (dest) |= SPEC_BLEN (src);
619 SPEC_BSTR (dest) |= SPEC_BSTR (src);
620 SPEC_TYPEDEF (dest) |= SPEC_TYPEDEF (src);
621 SPEC_NONBANKED (dest) |= SPEC_NONBANKED (src);
622 SPEC_NAKED (dest) |= SPEC_NAKED (src);
624 if (IS_STRUCT (dest) && SPEC_STRUCT (dest) == NULL)
625 SPEC_STRUCT (dest) = SPEC_STRUCT (src);
627 #ifdef LAST_MINUTE_2_3_0_FIX
634 /*------------------------------------------------------------------*/
635 /* cloneSpec - copies the entire spec and returns a new spec */
636 /*------------------------------------------------------------------*/
638 cloneSpec (sym_link * src)
642 /* go thru chain till we find the specifier */
643 while (src && src->class != SPECIFIER)
647 memcpy (spec, src, sizeof (sym_link));
651 /*------------------------------------------------------------------*/
652 /* genSymName - generates and returns a name used for anonymous vars */
653 /*------------------------------------------------------------------*/
655 genSymName (int level)
657 static int gCount = 0;
658 static char gname[SDCC_NAME_MAX + 1];
660 sprintf (gname, "__%04d%04d", level, gCount++);
664 /*------------------------------------------------------------------*/
665 /* getSpec - returns the specifier part from a declaration chain */
666 /*------------------------------------------------------------------*/
668 getSpec (sym_link * p)
673 while (p && !(IS_SPEC (p)))
679 /*------------------------------------------------------------------*/
680 /* newCharLink() - creates an char type */
681 /*------------------------------------------------------------------*/
688 p->class = SPECIFIER;
689 SPEC_NOUN (p) = V_CHAR;
694 /*------------------------------------------------------------------*/
695 /* newFloatLink - a new Float type */
696 /*------------------------------------------------------------------*/
703 p->class = SPECIFIER;
704 SPEC_NOUN (p) = V_FLOAT;
709 /*------------------------------------------------------------------*/
710 /* newLongLink() - new long type */
711 /*------------------------------------------------------------------*/
718 p->class = SPECIFIER;
719 SPEC_NOUN (p) = V_INT;
725 /*------------------------------------------------------------------*/
726 /* newIntLink() - creates an int type */
727 /*------------------------------------------------------------------*/
734 p->class = SPECIFIER;
735 SPEC_NOUN (p) = V_INT;
740 /*------------------------------------------------------------------*/
741 /* getSize - returns size of a type chain in bits */
742 /*------------------------------------------------------------------*/
744 getSize (sym_link * p)
746 /* if nothing return 0 */
750 { /* if this is the specifier then */
751 switch (SPEC_NOUN (p))
752 { /* depending on the specifier type */
754 return (IS_LONG (p) ? LONGSIZE : INTSIZE);
762 return SPEC_STRUCT (p)->size;
768 return ((SPEC_BLEN (p) / 8) + (SPEC_BLEN (p) % 8 ? 1 : 0));
774 /* this is a specifier */
775 switch (DCL_TYPE (p))
780 return DCL_ELEM (p) * getSize (p->next);
797 /*------------------------------------------------------------------*/
798 /* bitsForType - returns # of bits required to store this type */
799 /*------------------------------------------------------------------*/
801 bitsForType (sym_link * p)
803 /* if nothing return 0 */
808 { /* if this is the specifier then */
810 switch (SPEC_NOUN (p))
811 { /* depending on the specifier type */
813 return (IS_LONG (p) ? LONGSIZE * 8 : INTSIZE * 8);
815 return FLOATSIZE * 8;
821 return SPEC_STRUCT (p)->size * 8;
827 return SPEC_BLEN (p);
833 /* this is a specifier */
834 switch (DCL_TYPE (p))
839 return DCL_ELEM (p) * getSize (p->next) * 8;
843 return (PTRSIZE * 8);
847 return (FPTRSIZE * 8);
849 return (GPTRSIZE * 8);
856 /*------------------------------------------------------------------*/
857 /* copySymbolChain - copies a symbol chain */
858 /*------------------------------------------------------------------*/
860 copySymbolChain (symbol * src)
867 dest = copySymbol (src);
868 dest->next = copySymbolChain (src->next);
872 /*------------------------------------------------------------------*/
873 /* copySymbol - makes a copy of a symbol */
874 /*------------------------------------------------------------------*/
876 copySymbol (symbol * src)
883 dest = newSymbol (src->name, src->level);
884 memcpy (dest, src, sizeof (symbol));
885 dest->level = src->level;
886 dest->block = src->block;
887 dest->ival = copyIlist (src->ival);
888 dest->type = copyLinkChain (src->type);
889 dest->etype = getSpec (dest->type);
891 dest->args = copyValueChain (src->args);
892 dest->key = src->key;
893 dest->calleeSave = src->calleeSave;
894 dest->allocreq = src->allocreq;
898 /*------------------------------------------------------------------*/
899 /* reverseSyms - reverses the links for a symbol chain */
900 /*------------------------------------------------------------------*/
902 reverseSyms (symbol * sym)
904 symbol *prev, *curr, *next;
919 sym->next = (void *) NULL;
923 /*------------------------------------------------------------------*/
924 /* reverseLink - reverses the links for a type chain */
925 /*------------------------------------------------------------------*/
927 reverseLink (sym_link * type)
929 sym_link *prev, *curr, *next;
944 type->next = (void *) NULL;
948 /*------------------------------------------------------------------*/
949 /* addSymChain - adds a symbol chain to the symboltable */
950 /*------------------------------------------------------------------*/
952 addSymChain (symbol * symHead)
954 symbol *sym = symHead;
957 for (; sym != NULL; sym = sym->next)
960 checkTypeSanity(sym->etype, sym->name);
962 /* if already exists in the symbol table then check if
963 one of them is an extern definition if yes then
964 then check if the type match, if the types match then
965 delete the current entry and add the new entry */
966 if ((csym = findSymWithLevel (SymbolTab, sym)) &&
967 csym->level == sym->level) {
969 /* one definition extern ? */
970 if (IS_EXTERN (csym->etype) || IS_EXTERN (sym->etype)) {
971 /* do types match ? */
972 if (compareType (csym->type, sym->type) != 1) {
974 werror (E_EXTERN_MISMATCH, csym->name);
977 /* delete current entry */
978 deleteSym (SymbolTab, csym, csym->name);
981 werror (E_DUPLICATE, sym->name);
987 addSym (SymbolTab, sym, sym->name, sym->level, sym->block, 1);
992 /*------------------------------------------------------------------*/
993 /* funcInChain - DCL Type 'FUNCTION' found in type chain */
994 /*------------------------------------------------------------------*/
996 funcInChain (sym_link * lnk)
1007 /*------------------------------------------------------------------*/
1008 /* structElemType - returns the type info of a sturct member */
1009 /*------------------------------------------------------------------*/
1011 structElemType (sym_link * stype, value * id, value ** argsp)
1013 symbol *fields = (SPEC_STRUCT (stype) ? SPEC_STRUCT (stype)->fields : NULL);
1014 sym_link *type, *etype;
1015 sym_link *petype = getSpec (stype);
1020 /* look for the id */
1023 if (strcmp (fields->rname, id->name) == 0)
1027 *argsp = fields->args;
1029 type = copyLinkChain (fields->type);
1030 etype = getSpec (type);
1031 SPEC_SCLS (etype) = (SPEC_SCLS (petype) == S_REGISTER ?
1032 SPEC_SCLS (etype) : SPEC_SCLS (petype));
1035 fields = fields->next;
1037 werror (E_NOT_MEMBER, id->name);
1042 /*------------------------------------------------------------------*/
1043 /* getStructElement - returns element of a tructure definition */
1044 /*------------------------------------------------------------------*/
1046 getStructElement (structdef * sdef, symbol * sym)
1050 for (field = sdef->fields; field; field = field->next)
1051 if (strcmp (field->name, sym->name) == 0)
1054 werror (E_NOT_MEMBER, sym->name);
1056 return sdef->fields;
1059 /*------------------------------------------------------------------*/
1060 /* compStructSize - computes the size of a structure */
1061 /*------------------------------------------------------------------*/
1063 compStructSize (int su, structdef * sdef)
1065 int sum = 0, usum = 0;
1069 /* for the identifiers */
1070 loop = sdef->fields;
1073 /* create the internal name for this variable */
1074 sprintf (loop->rname, "_%s", loop->name);
1075 loop->offset = (su == UNION ? sum = 0 : sum);
1076 SPEC_VOLATILE (loop->etype) |= (su == UNION ? 1 : 0);
1078 /* if this is a bit field */
1081 /* change it to a unsigned bit */
1082 SPEC_NOUN (loop->etype) = V_BIT;
1083 SPEC_USIGN (loop->etype) = 1;
1084 /* check if this fit into the remaining */
1085 /* bits of this byte else align it to the */
1086 /* next byte boundary */
1087 if ((SPEC_BLEN (loop->etype) = loop->bitVar) <= (8 - bitOffset)) {
1088 SPEC_BSTR (loop->etype) = bitOffset;
1089 if ((bitOffset += (loop->bitVar % 8)) == 8)
1092 else /* does not fit */ {
1094 SPEC_BSTR (loop->etype) = bitOffset;
1095 sum += (loop->bitVar / 8);
1096 bitOffset += (loop->bitVar % 8);
1098 /* if this is the last field then pad */
1099 if (!loop->next && bitOffset && bitOffset != 8) {
1105 checkDecl (loop, 1);
1106 sum += getSize (loop->type);
1109 /* if function then do the arguments for it */
1110 if (funcInChain (loop->type)) {
1111 processFuncArgs (loop, 1);
1116 /* if this is not a bitfield but the */
1117 /* previous one was and did not take */
1118 /* the whole byte then pad the rest */
1119 if ((loop && !loop->bitVar) && bitOffset) {
1124 /* if union then size = sizeof larget field */
1126 usum = max (usum, sum);
1130 return (su == UNION ? usum : sum);
1133 /*------------------------------------------------------------------*/
1134 /* checkSClass - check the storage class specification */
1135 /*------------------------------------------------------------------*/
1137 checkSClass (symbol * sym, int isProto)
1139 if (getenv("DEBUG_SANITY")) {
1140 fprintf (stderr, "checkSClass: %s \n", sym->name);
1142 if (strcmp(sym->name, "_testsGlobal")==0) {
1146 /* type is literal can happen foe enums change
1148 if (SPEC_SCLS (sym->etype) == S_LITERAL && !SPEC_ENUM (sym->etype))
1149 SPEC_SCLS (sym->etype) = S_AUTO;
1151 /* if sfr or sbit then must also be */
1152 /* volatile the initial value will be xlated */
1153 /* to an absolute address */
1154 if (SPEC_SCLS (sym->etype) == S_SBIT ||
1155 SPEC_SCLS (sym->etype) == S_SFR)
1157 SPEC_VOLATILE (sym->etype) = 1;
1158 /* if initial value given */
1161 SPEC_ABSA (sym->etype) = 1;
1162 SPEC_ADDR (sym->etype) =
1163 (int) list2int (sym->ival);
1168 /* if absolute address given then it mark it as
1170 if (IS_ABSOLUTE (sym->etype))
1171 SPEC_VOLATILE (sym->etype) = 1;
1173 /* global variables declared const put into code */
1174 if (sym->level == 0 &&
1175 SPEC_CONST (sym->etype)) {
1176 SPEC_SCLS (sym->etype) = S_CODE;
1179 /* global variable in code space is a constant */
1180 if (sym->level == 0 &&
1181 SPEC_SCLS (sym->etype) == S_CODE &&
1183 SPEC_CONST (sym->etype) = 1;
1186 /* if bit variable then no storage class can be */
1187 /* specified since bit is already a storage */
1188 if (IS_BITVAR (sym->etype) &&
1189 (SPEC_SCLS (sym->etype) != S_FIXED &&
1190 SPEC_SCLS (sym->etype) != S_SBIT &&
1191 SPEC_SCLS (sym->etype) != S_BIT)
1194 werror (E_BITVAR_STORAGE, sym->name);
1195 SPEC_SCLS (sym->etype) = S_FIXED;
1198 /* extern variables cannot be initialized */
1199 if (IS_EXTERN (sym->etype) && sym->ival)
1201 werror (E_EXTERN_INIT, sym->name);
1206 /* if this is an automatic symbol then */
1207 /* storage class will be ignored and */
1208 /* symbol will be allocated on stack/ */
1209 /* data depending on flag */
1211 (options.stackAuto || reentrant) &&
1212 (SPEC_SCLS (sym->etype) != S_AUTO &&
1213 SPEC_SCLS (sym->etype) != S_FIXED &&
1214 SPEC_SCLS (sym->etype) != S_REGISTER &&
1215 SPEC_SCLS (sym->etype) != S_STACK &&
1216 SPEC_SCLS (sym->etype) != S_XSTACK))
1218 werror (E_AUTO_ASSUMED, sym->name);
1219 SPEC_SCLS (sym->etype) = S_AUTO;
1222 /* if this is an atomatic symbol */
1223 if (sym->level && (options.stackAuto || reentrant)) {
1224 if ((SPEC_SCLS (sym->etype) == S_AUTO ||
1225 SPEC_SCLS (sym->etype) == S_FIXED ||
1226 SPEC_SCLS (sym->etype) == S_REGISTER ||
1227 SPEC_SCLS (sym->etype) == S_STACK ||
1228 SPEC_SCLS (sym->etype) == S_XSTACK)) {
1229 SPEC_SCLS (sym->etype) = S_AUTO;
1231 /* storage class may only be specified for statics */
1232 if (!IS_STATIC(sym->etype)) {
1233 werror (E_AUTO_ASSUMED, sym->name);
1239 /* automatic symbols cannot be given */
1240 /* an absolute address ignore it */
1242 SPEC_ABSA (sym->etype) &&
1243 (options.stackAuto || reentrant))
1245 werror (E_AUTO_ABSA, sym->name);
1246 SPEC_ABSA (sym->etype) = 0;
1249 /* arrays & pointers cannot be defined for bits */
1250 /* SBITS or SFRs or BIT */
1251 if ((IS_ARRAY (sym->type) || IS_PTR (sym->type)) &&
1252 (SPEC_NOUN (sym->etype) == V_BIT ||
1253 SPEC_NOUN (sym->etype) == V_SBIT ||
1254 SPEC_SCLS (sym->etype) == S_SFR))
1255 werror (E_BIT_ARRAY, sym->name);
1257 /* if this is a bit|sbit then set length & start */
1258 if (SPEC_NOUN (sym->etype) == V_BIT ||
1259 SPEC_NOUN (sym->etype) == V_SBIT)
1261 SPEC_BLEN (sym->etype) = 1;
1262 SPEC_BSTR (sym->etype) = 0;
1266 /* variables declared in CODE space must have */
1267 /* initializers if not an extern */
1268 if (SPEC_SCLS (sym->etype) == S_CODE &&
1269 sym->ival == NULL &&
1271 port->mem.code_ro &&
1272 !IS_EXTERN (sym->etype) &&
1273 !funcInChain (sym->type))
1274 werror (E_CODE_NO_INIT, sym->name);
1277 /* if parameter or local variable then change */
1278 /* the storage class to reflect where the var will go */
1279 if (sym->level && SPEC_SCLS (sym->etype) == S_FIXED &&
1280 !IS_STATIC(sym->etype))
1282 if (options.stackAuto || (currFunc && IS_RENT (currFunc->etype)))
1284 SPEC_SCLS (sym->etype) = (options.useXstack ?
1285 S_XSTACK : S_STACK);
1289 /* hack-o-matic! I see no reason why the useXstack option should ever
1290 * control this allcoation, but the code was originally that way, and
1291 * changing it for non-390 ports breaks the compiler badly.
1293 bool useXdata = TARGET_IS_DS390 ? 1 : options.useXstack;
1294 SPEC_SCLS (sym->etype) = (useXdata ?
1300 /*------------------------------------------------------------------*/
1301 /* changePointer - change pointer to functions */
1302 /*------------------------------------------------------------------*/
1304 changePointer (symbol * sym)
1308 /* go thru the chain of declarations */
1309 /* if we find a pointer to a function */
1310 /* unconditionally change it to a ptr */
1312 for (p = sym->type; p; p = p->next)
1314 if (!IS_SPEC (p) && DCL_TYPE (p) == UPOINTER)
1315 DCL_TYPE (p) = GPOINTER;
1316 if (IS_PTR (p) && IS_FUNC (p->next))
1317 DCL_TYPE (p) = CPOINTER;
1321 /*------------------------------------------------------------------*/
1322 /* checkDecl - does semantic validation of a declaration */
1323 /*------------------------------------------------------------------*/
1325 checkDecl (symbol * sym, int isProto)
1328 checkSClass (sym, isProto); /* check the storage class */
1329 changePointer (sym); /* change pointers if required */
1331 /* if this is an array without any dimension
1332 then update the dimension from the initial value */
1333 if (IS_ARRAY (sym->type) && !DCL_ELEM (sym->type))
1334 DCL_ELEM (sym->type) = getNelements (sym->type, sym->ival);
1339 /*------------------------------------------------------------------*/
1340 /* copyLinkChain - makes a copy of the link chain & rets ptr 2 head */
1341 /*------------------------------------------------------------------*/
1343 copyLinkChain (sym_link * p)
1345 sym_link *head, *curr, *loop;
1348 head = loop = (curr ? newLink () : (void *) NULL);
1351 memcpy (loop, curr, sizeof (sym_link)); /* copy it */
1352 loop->next = (curr->next ? newLink () : (void *) NULL);
1361 /*------------------------------------------------------------------*/
1362 /* cleanUpBlock - cleansup the symbol table specified for all the */
1363 /* symbols in the given block */
1364 /*------------------------------------------------------------------*/
1366 cleanUpBlock (bucket ** table, int block)
1371 /* go thru the entire table */
1372 for (i = 0; i < 256; i++)
1374 for (chain = table[i]; chain; chain = chain->next)
1376 if (chain->block >= block)
1378 deleteSym (table, chain->sym, chain->name);
1384 /*------------------------------------------------------------------*/
1385 /* cleanUpLevel - cleansup the symbol table specified for all the */
1386 /* symbols in the given level */
1387 /*------------------------------------------------------------------*/
1389 cleanUpLevel (bucket ** table, int level)
1394 /* go thru the entire table */
1395 for (i = 0; i < 256; i++)
1397 for (chain = table[i]; chain; chain = chain->next)
1399 if (chain->level >= level)
1401 deleteSym (table, chain->sym, chain->name);
1407 /*------------------------------------------------------------------*/
1408 /* computeType - computes the resultant type from two types */
1409 /*------------------------------------------------------------------*/
1411 computeType (sym_link * type1, sym_link * type2)
1415 sym_link *etype1 = getSpec (type1);
1416 sym_link *etype2 = getSpec (type2);
1418 /* if one of them is a float then result is a float */
1419 /* here we assume that the types passed are okay */
1420 /* and can be cast to one another */
1421 /* which ever is greater in size */
1422 if (IS_FLOAT (etype1) || IS_FLOAT (etype2))
1423 rType = newFloatLink ();
1425 /* if only one of them is a bit variable
1426 then the other one prevails */
1427 if (IS_BITVAR (etype1) && !IS_BITVAR (etype2))
1428 rType = copyLinkChain (type2);
1429 else if (IS_BITVAR (etype2) && !IS_BITVAR (etype1))
1430 rType = copyLinkChain (type1);
1432 /* if one of them is a pointer then that
1435 rType = copyLinkChain (type1);
1436 else if (IS_PTR (type2))
1437 rType = copyLinkChain (type2);
1438 else if (getSize (type1) > getSize (type2))
1439 rType = copyLinkChain (type1);
1441 rType = copyLinkChain (type2);
1443 reType = getSpec (rType);
1445 /* if either of them unsigned then make this unsigned */
1446 if ((SPEC_USIGN (etype1) || SPEC_USIGN (etype2)) && !IS_FLOAT (reType))
1447 SPEC_USIGN (reType) = 1;
1449 /* if result is a literal then make not so */
1450 if (IS_LITERAL (reType))
1451 SPEC_SCLS (reType) = S_REGISTER;
1456 /*------------------------------------------------------------------*/
1457 /* compareType - will do type check return 1 if match */
1458 /*------------------------------------------------------------------*/
1460 compareType (sym_link * dest, sym_link * src)
1471 /* if dest is a declarator then */
1476 if (DCL_TYPE (src) == DCL_TYPE (dest))
1477 return compareType (dest->next, src->next);
1478 else if (IS_PTR (src) && IS_PTR (dest))
1480 else if (IS_PTR (dest) && IS_ARRAY (src))
1482 else if (IS_PTR (dest) && IS_FUNC (dest->next) && IS_FUNC (src))
1483 return -1 * compareType (dest->next, src);
1487 else if (IS_PTR (dest) && IS_INTEGRAL (src))
1493 /* if one is a specifier and the other is not */
1494 if ((IS_SPEC (src) && !IS_SPEC (dest)) ||
1495 (IS_SPEC (dest) && !IS_SPEC (src)))
1498 /* if one of them is a void then ok */
1499 if (SPEC_NOUN (dest) == V_VOID &&
1500 SPEC_NOUN (src) != V_VOID)
1503 if (SPEC_NOUN (dest) != V_VOID &&
1504 SPEC_NOUN (src) == V_VOID)
1507 /* if they are both bitfields then if the lengths
1508 and starts don't match */
1509 if (IS_BITFIELD (dest) && IS_BITFIELD (src) &&
1510 (SPEC_BLEN (dest) != SPEC_BLEN (src) ||
1511 SPEC_BSTR (dest) != SPEC_BSTR (src)))
1514 /* it is a specifier */
1515 if (SPEC_NOUN (dest) != SPEC_NOUN (src))
1517 if (SPEC_USIGN (dest) == SPEC_USIGN (src) &&
1518 IS_INTEGRAL (dest) && IS_INTEGRAL (src) &&
1519 getSize (dest) == getSize (src))
1521 else if (IS_ARITHMETIC (dest) && IS_ARITHMETIC (src))
1526 else if (IS_STRUCT (dest))
1528 if (SPEC_STRUCT (dest) != SPEC_STRUCT (src))
1533 if (SPEC_LONG (dest) != SPEC_LONG (src))
1536 if (SPEC_USIGN (dest) != SPEC_USIGN (src))
1542 /*------------------------------------------------------------------*/
1543 /* inCalleeSaveList - return 1 if found in callee save list */
1544 /*------------------------------------------------------------------*/
1546 inCalleeSaveList (char *s)
1550 for (i = 0; options.calleeSaves[i]; i++)
1551 if (strcmp (options.calleeSaves[i], s) == 0)
1557 /*-----------------------------------------------------------------*/
1558 /* aggregateArgToPointer: change an agggregate type function */
1559 /* argument to a pointer to that type. */
1560 /*-----------------------------------------------------------------*/
1562 aggregateArgToPointer (value * val)
1564 if (IS_AGGREGATE (val->type))
1566 /* if this is a structure */
1567 /* then we need to add a new link */
1568 if (IS_STRUCT (val->type))
1570 /* first lets add DECLARATOR type */
1571 sym_link *p = val->type;
1573 werror (W_STRUCT_AS_ARG, val->name);
1574 val->type = newLink ();
1575 val->type->next = p;
1578 /* change to a pointer depending on the */
1579 /* storage class specified */
1580 switch (SPEC_SCLS (val->etype))
1583 DCL_TYPE (val->type) = IPOINTER;
1586 DCL_TYPE (val->type) = PPOINTER;
1589 if (TARGET_IS_DS390)
1591 /* The AUTO and REGISTER classes should probably
1592 * also become generic pointers, but I haven't yet
1593 * devised a test case for that.
1595 DCL_TYPE (val->type) = GPOINTER;
1602 DCL_TYPE (val->type) = POINTER;
1605 DCL_TYPE (val->type) = CPOINTER;
1608 DCL_TYPE (val->type) = FPOINTER;
1611 DCL_TYPE (val->type) = EEPPOINTER;
1614 DCL_TYPE (val->type) = GPOINTER;
1617 /* is there is a symbol associated then */
1618 /* change the type of the symbol as well */
1621 val->sym->type = copyLinkChain (val->type);
1622 val->sym->etype = getSpec (val->sym->type);
1626 /*------------------------------------------------------------------*/
1627 /* checkFunction - does all kinds of check on a function */
1628 /*------------------------------------------------------------------*/
1630 checkFunction (symbol * sym)
1633 value *exargs, *acargs;
1637 if (getenv("DEBUG_SANITY")) {
1638 fprintf (stderr, "checkFunction: %s ", sym->name);
1641 /* make sure the type is complete and sane */
1642 checkTypeSanity(((symbol *)sym)->etype, ((symbol *)sym)->name);
1644 /* if not type then some kind of error */
1648 /* if the function has no type then make it return int */
1649 if (!sym->type->next)
1650 sym->type->next = sym->etype = newIntLink ();
1652 /* function cannot return aggregate */
1653 if (IS_AGGREGATE (sym->type->next))
1655 werror (E_FUNC_AGGR, sym->name);
1659 /* function cannot return bit */
1660 if (IS_BITVAR (sym->type->next))
1662 werror (E_FUNC_BIT, sym->name);
1666 /* check if this function is defined as calleeSaves
1667 then mark it as such */
1668 sym->calleeSave = inCalleeSaveList (sym->name);
1670 /* if interrupt service routine */
1671 /* then it cannot have arguments */
1672 if (sym->args && IS_ISR (sym->etype) && !IS_VOID (sym->args->type))
1674 werror (E_INT_ARGS, sym->name);
1678 if (!(csym = findSym (SymbolTab, sym, sym->name)))
1679 return 1; /* not defined nothing more to check */
1681 /* check if body already present */
1682 if (csym && csym->fbody)
1684 werror (E_FUNC_BODY, sym->name);
1688 /* check the return value type */
1689 if (compareType (csym->type, sym->type) <= 0)
1691 werror (E_PREV_DEF_CONFLICT, csym->name, "type");
1692 werror (E_CONTINUE, "previous definition type ");
1693 printTypeChain (csym->type, stderr);
1694 fprintf (stderr, "\n");
1695 werror (E_CONTINUE, "current definition type ");
1696 printTypeChain (sym->type, stderr);
1697 fprintf (stderr, "\n");
1701 if (SPEC_INTRTN (csym->etype) != SPEC_INTRTN (sym->etype))
1703 werror (E_PREV_DEF_CONFLICT, csym->name, "interrupt");
1706 if (SPEC_BANK (csym->etype) != SPEC_BANK (sym->etype))
1708 werror (E_PREV_DEF_CONFLICT, csym->name, "using");
1711 if (SPEC_NAKED (csym->etype) != SPEC_NAKED (sym->etype))
1713 werror (E_PREV_DEF_CONFLICT, csym->name, "_naked");
1716 /* compare expected agrs with actual args */
1717 exargs = csym->args;
1720 /* for all the expected args do */
1723 exargs = exargs->next, acargs = acargs->next, argCnt++)
1725 if (getenv("DEBUG_SANITY")) {
1726 fprintf (stderr, "checkFunction: %s ", exargs->name);
1728 /* make sure the type is complete and sane */
1729 checkTypeSanity(exargs->etype, exargs->name);
1731 /* If the actual argument is an array, any prototype
1732 * will have modified it to a pointer. Duplicate that
1735 if (IS_AGGREGATE (acargs->type))
1737 checkValue = copyValue (acargs);
1738 aggregateArgToPointer (checkValue);
1742 checkValue = acargs;
1745 if (compareType (exargs->type, checkValue->type) <= 0)
1747 werror (E_ARG_TYPE, argCnt);
1752 /* if one them ended we have a problem */
1753 if ((exargs && !acargs && !IS_VOID (exargs->type)) ||
1754 (!exargs && acargs && !IS_VOID (acargs->type)))
1755 werror (E_ARG_COUNT);
1757 /* replace with this defition */
1758 sym->cdef = csym->cdef;
1759 deleteSym (SymbolTab, csym, csym->name);
1760 addSym (SymbolTab, sym, sym->name, sym->level, sym->block, 1);
1761 if (IS_EXTERN (csym->etype) && !
1762 IS_EXTERN (sym->etype))
1764 addSet (&publics, sym);
1769 /*-----------------------------------------------------------------*/
1770 /* processFuncArgs - does some processing with function args */
1771 /*-----------------------------------------------------------------*/
1773 processFuncArgs (symbol * func, int ignoreName)
1778 /* if this function has variable argument list */
1779 /* then make the function a reentrant one */
1781 SPEC_RENT (func->etype) = 1;
1783 /* check if this function is defined as calleeSaves
1784 then mark it as such */
1785 func->calleeSave = inCalleeSaveList (func->name);
1787 val = func->args; /* loop thru all the arguments */
1789 /* if it is void then remove parameters */
1790 if (val && IS_VOID (val->type))
1796 /* reset regparm for the port */
1797 (*port->reset_regparms) ();
1798 /* if any of the arguments is an aggregate */
1799 /* change it to pointer to the same type */
1802 /* mark it as a register parameter if
1803 the function does not have VA_ARG
1804 and as port dictates */
1805 if (!func->hasVargs &&
1806 (*port->reg_parm) (val->type))
1808 SPEC_REGPARM (val->etype) = 1;
1811 if (IS_AGGREGATE (val->type))
1813 aggregateArgToPointer (val);
1819 /* if this is an internal generated function call */
1821 /* ignore --stack-auto for this one, we don't know how it is compiled */
1822 /* simply trust on --int-long-reent or --float-reent */
1823 if (IS_RENT(func->etype)) {
1827 /* if this function is reentrant or */
1828 /* automatics r 2b stacked then nothing */
1829 if (IS_RENT (func->etype) || options.stackAuto)
1838 /* if a symbolname is not given */
1839 /* synthesize a variable name */
1843 sprintf (val->name, "_%s_PARM_%d", func->name, pNum++);
1844 val->sym = newSymbol (val->name, 1);
1845 SPEC_OCLS (val->etype) = port->mem.default_local_map;
1846 val->sym->type = copyLinkChain (val->type);
1847 val->sym->etype = getSpec (val->sym->type);
1848 val->sym->_isparm = 1;
1849 strcpy (val->sym->rname, val->name);
1850 SPEC_STAT (val->etype) = SPEC_STAT (val->sym->etype) =
1851 SPEC_STAT (func->etype);
1852 addSymChain (val->sym);
1855 else /* symbol name given create synth name */
1858 sprintf (val->name, "_%s_PARM_%d", func->name, pNum++);
1859 strcpy (val->sym->rname, val->name);
1860 val->sym->_isparm = 1;
1861 SPEC_OCLS (val->etype) = SPEC_OCLS (val->sym->etype) =
1862 (options.model != MODEL_SMALL ? xdata : data);
1863 SPEC_STAT (val->etype) = SPEC_STAT (val->sym->etype) =
1864 SPEC_STAT (func->etype);
1870 /*-----------------------------------------------------------------*/
1871 /* isSymbolEqual - compares two symbols return 1 if they match */
1872 /*-----------------------------------------------------------------*/
1874 isSymbolEqual (symbol * dest, symbol * src)
1876 /* if pointers match then equal */
1880 /* if one of them is null then don't match */
1884 /* if both of them have rname match on rname */
1885 if (dest->rname[0] && src->rname[0])
1886 return (!strcmp (dest->rname, src->rname));
1888 /* otherwise match on name */
1889 return (!strcmp (dest->name, src->name));
1892 void PT(sym_link *type)
1894 printTypeChain(type,0);
1896 /*-----------------------------------------------------------------*/
1897 /* printTypeChain - prints the type chain in human readable form */
1898 /*-----------------------------------------------------------------*/
1900 printTypeChain (sym_link * type, FILE * of)
1914 if (DCL_PTR_VOLATILE(type)) {
1915 fprintf (of, "volatile ");
1917 switch (DCL_TYPE (type))
1920 fprintf (of, "function ");
1923 fprintf (of, "_generic * ");
1924 if (DCL_PTR_CONST (type))
1925 fprintf (of, "const ");
1928 fprintf (of, "_code * ");
1929 if (DCL_PTR_CONST (type))
1930 fprintf (of, "const ");
1933 fprintf (of, "_far * ");
1934 if (DCL_PTR_CONST (type))
1935 fprintf (of, "const ");
1938 fprintf (of, "_eeprom * ");
1939 if (DCL_PTR_CONST (type))
1940 fprintf (of, "const ");
1944 fprintf (of, "_near * ");
1945 if (DCL_PTR_CONST (type))
1946 fprintf (of, "const ");
1949 fprintf (of, "_idata *");
1950 if (DCL_PTR_CONST (type))
1951 fprintf (of, "const ");
1954 fprintf (of, "_pdata *");
1955 if (DCL_PTR_CONST (type))
1956 fprintf (of, "const ");
1959 fprintf (of, " _unkown *");
1960 if (DCL_PTR_CONST (type))
1961 fprintf (of, "const ");
1964 fprintf (of, "array of ");
1970 if (SPEC_VOLATILE (type))
1971 fprintf (of, "volatile ");
1972 if (SPEC_USIGN (type))
1973 fprintf (of, "unsigned ");
1974 if (SPEC_CONST (type))
1975 fprintf (of, "const ");
1977 switch (SPEC_NOUN (type))
1981 fprintf (of, "long ");
1982 fprintf (of, "int ");
1986 fprintf (of, "char ");
1990 fprintf (of, "void ");
1994 fprintf (of, "float ");
1998 fprintf (of, "struct %s", SPEC_STRUCT (type)->tag);
2002 fprintf (of, "sbit ");
2006 fprintf (of, "bit {%d,%d}", SPEC_BSTR (type), SPEC_BLEN (type));
2010 fprintf (of, "double ");
2014 fprintf (of, "unknown type ");
2024 /*-----------------------------------------------------------------*/
2025 /* cdbTypeInfo - print the type information for debugger */
2026 /*-----------------------------------------------------------------*/
2028 cdbTypeInfo (sym_link * type, FILE * of)
2030 fprintf (of, "{%d}", getSize (type));
2035 switch (DCL_TYPE (type))
2038 fprintf (of, "DF,");
2041 fprintf (of, "DG,");
2044 fprintf (of, "DC,");
2047 fprintf (of, "DX,");
2050 fprintf (of, "DD,");
2053 fprintf (of, "DI,");
2056 fprintf (of, "DP,");
2059 fprintf (of, "DA,");
2062 fprintf (of, "DA%d,", DCL_ELEM (type));
2070 switch (SPEC_NOUN (type))
2092 fprintf (of, "ST%s", SPEC_STRUCT (type)->tag);
2100 fprintf (of, "SB%d$%d", SPEC_BSTR (type), SPEC_BLEN (type));
2107 if (SPEC_USIGN (type))
2115 /*-----------------------------------------------------------------*/
2116 /* cdbSymbol - prints a symbol & its type information for debugger */
2117 /*-----------------------------------------------------------------*/
2119 cdbSymbol (symbol * sym, FILE * of, int isStructSym, int isFunc)
2131 fprintf (of, "S:"); /* symbol record */
2132 /* if this is not a structure symbol then
2133 we need to figure out the scope information */
2139 if (IS_STATIC (sym->etype))
2140 fprintf (of, "F%s$", moduleName); /* scope is file */
2142 fprintf (of, "G$"); /* scope is global */
2145 /* symbol is local */
2146 fprintf (of, "L%s$", (sym->localof ? sym->localof->name : "-null-"));
2149 fprintf (of, "S$"); /* scope is structure */
2151 /* print the name, & mangled name */
2152 fprintf (of, "%s$%d$%d(", sym->name,
2153 sym->level, sym->block);
2155 cdbTypeInfo (sym->type, of);
2158 /* print the address space */
2159 map = SPEC_OCLS (sym->etype);
2160 fprintf (of, "%c,%d,%d",
2161 (map ? map->dbName : 'Z'), sym->onStack, SPEC_STAK (sym->etype));
2163 /* if assigned to registers then output register names */
2164 /* if this is a function then print
2165 if is it an interrupt routine & interrupt number
2166 and the register bank it is using */
2168 fprintf (of, ",%d,%d,%d", SPEC_INTRTN (sym->etype),
2169 SPEC_INTN (sym->etype), SPEC_BANK (sym->etype));
2170 /* alternate location to find this symbol @ : eg registers
2177 /*-----------------------------------------------------------------*/
2178 /* cdbStruct - print a structure for debugger */
2179 /*-----------------------------------------------------------------*/
2181 cdbStruct (structdef * sdef, int block, FILE * of,
2182 int inStruct, char *tag)
2187 /* if block # then must have function scope */
2188 fprintf (of, "F%s$", moduleName);
2189 fprintf (of, "%s[", (tag ? tag : sdef->tag));
2190 for (sym = sdef->fields; sym; sym = sym->next)
2192 fprintf (of, "({%d}", sym->offset);
2193 cdbSymbol (sym, of, TRUE, FALSE);
2201 /*------------------------------------------------------------------*/
2202 /* cdbStructBlock - calls struct printing for a blcks */
2203 /*------------------------------------------------------------------*/
2205 cdbStructBlock (int block, FILE * of)
2208 bucket **table = StructTab;
2212 /* go thru the entire table */
2213 for (i = 0; i < 256; i++)
2215 for (chain = table[i]; chain; chain = chain->next)
2217 if (chain->block >= block)
2219 cdbStruct ((structdef *) chain->sym, chain->block, of, 0, NULL);
2225 /*-----------------------------------------------------------------*/
2226 /* powof2 - returns power of two for the number if number is pow 2 */
2227 /*-----------------------------------------------------------------*/
2229 powof2 (unsigned long num)
2242 if (n1s > 1 || nshifts == 0)
2258 /* Dims: mul/div/mod, BYTE/WORD/DWORD, SIGNED/UNSIGNED */
2259 symbol *__muldiv[3][3][2];
2260 /* Dims: BYTE/WORD/DWORD SIGNED/UNSIGNED */
2261 sym_link *__multypes[3][2];
2262 /* Dims: to/from float, BYTE/WORD/DWORD, SIGNED/USIGNED */
2263 symbol *__conv[2][3][2];
2264 /* Dims: shift left/shift right, BYTE/WORD/DWORD, SIGNED/UNSIGNED */
2265 symbol *__rlrr[2][3][2];
2267 sym_link *floatType;
2270 _mangleFunctionName(char *in)
2272 if (port->getMangledFunctionName)
2274 return port->getMangledFunctionName(in);
2282 /*-----------------------------------------------------------------*/
2283 /* initCSupport - create functions for C support routines */
2284 /*-----------------------------------------------------------------*/
2288 const char *smuldivmod[] =
2292 const char *sbwd[] =
2294 "char", "int", "long"
2300 const char *srlrr[] =
2305 int bwd, su, muldivmod, tofrom, rlrr;
2307 floatType = newFloatLink ();
2309 for (bwd = 0; bwd < 3; bwd++)
2326 __multypes[bwd][0] = l;
2327 __multypes[bwd][1] = copyLinkChain (l);
2328 SPEC_USIGN (__multypes[bwd][1]) = 1;
2331 __fsadd = funcOfType ("__fsadd", floatType, floatType, 2, options.float_rent);
2332 __fssub = funcOfType ("__fssub", floatType, floatType, 2, options.float_rent);
2333 __fsmul = funcOfType ("__fsmul", floatType, floatType, 2, options.float_rent);
2334 __fsdiv = funcOfType ("__fsdiv", floatType, floatType, 2, options.float_rent);
2335 __fseq = funcOfType ("__fseq", CHARTYPE, floatType, 2, options.float_rent);
2336 __fsneq = funcOfType ("__fsneq", CHARTYPE, floatType, 2, options.float_rent);
2337 __fslt = funcOfType ("__fslt", CHARTYPE, floatType, 2, options.float_rent);
2338 __fslteq = funcOfType ("__fslteq", CHARTYPE, floatType, 2, options.float_rent);
2339 __fsgt = funcOfType ("__fsgt", CHARTYPE, floatType, 2, options.float_rent);
2340 __fsgteq = funcOfType ("__fsgteq", CHARTYPE, floatType, 2, options.float_rent);
2342 for (tofrom = 0; tofrom < 2; tofrom++)
2344 for (bwd = 0; bwd < 3; bwd++)
2346 for (su = 0; su < 2; su++)
2350 sprintf (buffer, "__fs2%s%s", ssu[su], sbwd[bwd]);
2351 __conv[tofrom][bwd][su] = funcOfType (_mangleFunctionName(buffer), __multypes[bwd][su], floatType, 1, options.float_rent);
2355 sprintf (buffer, "__%s%s2fs", ssu[su], sbwd[bwd]);
2356 __conv[tofrom][bwd][su] = funcOfType (_mangleFunctionName(buffer), floatType, __multypes[bwd][su], 1, options.float_rent);
2362 for (muldivmod = 0; muldivmod < 3; muldivmod++)
2364 for (bwd = 0; bwd < 3; bwd++)
2366 for (su = 0; su < 2; su++)
2368 sprintf (buffer, "_%s%s%s",
2369 smuldivmod[muldivmod],
2372 __muldiv[muldivmod][bwd][su] = funcOfType (_mangleFunctionName(buffer), __multypes[bwd][su], __multypes[bwd][su], 2, options.intlong_rent);
2373 SPEC_NONBANKED (__muldiv[muldivmod][bwd][su]->etype) = 1;
2378 for (rlrr = 0; rlrr < 2; rlrr++)
2380 for (bwd = 0; bwd < 3; bwd++)
2382 for (su = 0; su < 2; su++)
2384 sprintf (buffer, "_%s%s%s",
2388 __rlrr[rlrr][bwd][su] = funcOfType (_mangleFunctionName(buffer), __multypes[bwd][su], __multypes[0][0], 2, options.intlong_rent);
2389 SPEC_NONBANKED (__rlrr[rlrr][bwd][su]->etype) = 1;