1 /*-------------------------------------------------------------------------
3 SDCCglue.c - glues everything we have done together into one file.
4 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
6 This program is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 In other words, you are welcome to use, share and improve this program.
21 You are forbidden to forbid anyone else to use, share and improve
22 what you give them. Help stamp out software-hoarding!
23 -------------------------------------------------------------------------*/
30 #if !defined(__BORLANDC__) && !defined(_MSC_VER)
34 symbol *interrupts[256];
36 void printIval (symbol *, sym_link *, initList *, FILE *);
37 set *publics = NULL; /* public variables */
38 set *externs = NULL; /* Varibles that are declared as extern */
40 /* TODO: this should be configurable (DS803C90 uses more than 6) */
41 unsigned maxInterrupts = 6;
44 extern char *VersionString;
45 set *tmpfileSet = NULL; /* set of tmp file created by the compiler */
46 set *tmpfileNameSet = NULL; /* All are unlinked at close. */
48 /*-----------------------------------------------------------------*/
49 /* closeTmpFiles - closes all tmp files created by the compiler */
50 /* because of BRAIN DEAD MS/DOS & CYGNUS Libraries */
51 /*-----------------------------------------------------------------*/
52 DEFSETFUNC (closeTmpFiles)
62 /*-----------------------------------------------------------------*/
63 /* rmTmpFiles - closes all tmp files created by the compiler */
64 /* because of BRAIN DEAD MS/DOS & CYGNUS Libraries */
65 /*-----------------------------------------------------------------*/
66 DEFSETFUNC (rmTmpFiles)
78 /*-----------------------------------------------------------------*/
79 /* copyFile - copies source file to destination file */
80 /*-----------------------------------------------------------------*/
82 copyFile (FILE * dest, FILE * src)
88 if ((ch = fgetc (src)) != EOF)
93 aopLiteralLong (value * val, int offset, int size)
103 // assuming we have been warned before
107 /* if it is a float then it gets tricky */
108 /* otherwise it is fairly simple */
109 if (!IS_FLOAT (val->type)) {
110 unsigned long v = (unsigned long) floatFromVal (val);
115 tsprintf (buffer, "!immedbyte", (unsigned int) v & 0xff);
118 tsprintf (buffer, "!immedword", (unsigned int) v & 0xffff);
121 /* Hmm. Too big for now. */
124 rs = Safe_calloc (1, strlen (buffer) + 1);
125 return strcpy (rs, buffer);
128 /* PENDING: For now size must be 1 */
131 /* it is type float */
132 fl.f = (float) floatFromVal (val);
134 tsprintf (buffer, "!immedbyte", fl.c[3 - offset]);
136 tsprintf (buffer, "!immedbyte", fl.c[offset]);
138 rs = Safe_calloc (1, strlen (buffer) + 1);
139 return strcpy (rs, buffer);
142 /*-----------------------------------------------------------------*/
143 /* aopLiteral - string from a literal value */
144 /*-----------------------------------------------------------------*/
146 aopLiteral (value * val, int offset)
148 return aopLiteralLong (val, offset, 1);
151 /*-----------------------------------------------------------------*/
152 /* emitRegularMap - emit code for maps with no special cases */
153 /*-----------------------------------------------------------------*/
155 emitRegularMap (memmap * map, bool addPublics, bool arFlag)
157 symbol *sym, *symIval;
163 /* PENDING: special case here - should remove */
164 if (!strcmp (map->sname, CODE_NAME))
165 tfprintf (map->oFile, "\t!areacode\n", map->sname);
166 else if (!strcmp (map->sname, DATA_NAME))
167 tfprintf (map->oFile, "\t!areadata\n", map->sname);
168 else if (!strcmp (map->sname, HOME_NAME))
169 tfprintf (map->oFile, "\t!areahome\n", map->sname);
171 tfprintf (map->oFile, "\t!area\n", map->sname);
174 for (sym = setFirstItem (map->syms); sym;
175 sym = setNextItem (map->syms))
179 /* if extern then add it into the extern list */
180 if (IS_EXTERN (sym->etype))
182 addSetHead (&externs, sym);
186 /* if allocation required check is needed
187 then check if the symbol really requires
188 allocation only for local variables */
190 if (arFlag && !IS_AGGREGATE (sym->type) &&
191 !(sym->_isparm && !IS_REGPARM (sym->etype)) &&
192 !sym->allocreq && sym->level)
195 /* for bitvar locals and parameters */
196 if (!arFlag && !sym->allocreq && sym->level
197 && !SPEC_ABSA (sym->etype)) {
201 /* if global variable & not static or extern
202 and addPublics allowed then add it to the public set */
203 if ((sym->level == 0 ||
204 (sym->_isparm && !IS_REGPARM (sym->etype))) &&
206 !IS_STATIC (sym->etype) &&
207 (IS_FUNC(sym->type) ? (sym->used || IFFUNC_HASBODY(sym->type)) : 1))
209 addSetHead (&publics, sym);
212 /* if extern then do nothing or is a function
214 if (IS_FUNC (sym->type))
217 /* print extra debug info if required */
219 cdbSymbol (sym, cdbFile, FALSE, FALSE);
220 if (!sym->level) /* global */
221 if (IS_STATIC (sym->etype))
222 fprintf (map->oFile, "F%s$", moduleName); /* scope is file */
224 fprintf (map->oFile, "G$"); /* scope is global */
226 /* symbol is local */
227 fprintf (map->oFile, "L%s$", (sym->localof ? sym->localof->name : "-null-"));
228 fprintf (map->oFile, "%s$%d$%d", sym->name, sym->level, sym->block);
231 /* if it has an initial value then do it only if
232 it is a global variable */
233 if (sym->ival && sym->level == 0) {
234 if (SPEC_OCLS(sym->etype)==xidata) {
235 // create a new "XINIT (CODE)" symbol, that will be emitted later
236 newSym=copySymbol (sym);
237 SPEC_OCLS(newSym->etype)=xinit;
238 sprintf (newSym->name, "__xinit_%s", sym->name);
239 sprintf (newSym->rname,"__xinit_%s", sym->rname);
240 SPEC_CONST(newSym->etype)=1;
241 SPEC_STAT(newSym->etype)=1;
242 //addSym (SymbolTab, newSym, newSym->name, 0, 0, 1);
243 if (!IS_AGGREGATE(sym->type)) {
244 resolveIvalSym(newSym->ival);
246 // add it to the "XINIT (CODE)" segment
247 addSet(&xinit->syms, newSym);
250 if (IS_AGGREGATE (sym->type)) {
251 ival = initAggregates (sym, sym->ival, NULL);
253 if (getNelements(sym->type, sym->ival)>1) {
254 werror (W_EXCESS_INITIALIZERS, "scalar",
255 sym->name, sym->lineDef);
257 ival = newNode ('=', newAst_VALUE (symbolVal (sym)),
258 decorateType (resolveSymbols (list2expr (sym->ival))));
260 codeOutFile = statsg->oFile;
264 // set ival's lineno to where the symbol was defined
265 lineno=ival->lineno=sym->lineDef;
267 eBBlockFromiCode (iCodeFromAst (ival));
272 // set ival's lineno to where the symbol was defined
273 setAstLineno (ival, lineno=sym->lineDef);
274 // check if this is not a constant expression
275 if (!constExprTree(ival)) {
276 werror (E_CONST_EXPECTED, "found expression");
277 // but try to do it anyway
280 eBBlockFromiCode (iCodeFromAst (ival));
286 /* if the ival is a symbol assigned to an aggregate,
287 (bug #458099 -> #462479)
288 we don't need it anymore, so delete it from its segment */
289 if (sym->ival && sym->ival->type == INIT_NODE &&
290 IS_AST_SYM_VALUE(sym->ival->init.node) &&
291 IS_AGGREGATE (sym->type) ) {
292 symIval=AST_SYMBOL(sym->ival->init.node);
293 segment = SPEC_OCLS (symIval->etype);
294 deleteSetItem (&segment->syms, symIval);
300 /* if is has an absolute address then generate
301 an equate for this no need to allocate space */
302 if (SPEC_ABSA (sym->etype))
305 fprintf (map->oFile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
307 fprintf (map->oFile, "%s\t=\t0x%04x\n",
309 SPEC_ADDR (sym->etype));
312 int size = getSize (sym->type);
314 werror(E_UNKNOWN_SIZE,sym->name);
318 fprintf (map->oFile, "==.\n");
320 if (IS_STATIC (sym->etype))
321 tfprintf (map->oFile, "!slabeldef\n", sym->rname);
323 tfprintf (map->oFile, "!labeldef\n", sym->rname);
324 tfprintf (map->oFile, "\t!ds\n",
325 (unsigned int) size & 0xffff);
330 /*-----------------------------------------------------------------*/
331 /* initPointer - pointer initialization code massaging */
332 /*-----------------------------------------------------------------*/
334 initPointer (initList * ilist)
337 ast *expr = list2expr (ilist);
342 /* try it the oldway first */
343 if ((val = constExprValue (expr, FALSE)))
346 /* no then we have to do these cludgy checks */
347 /* pointers can be initialized with address of
348 a variable or address of an array element */
349 if (IS_AST_OP (expr) && expr->opval.op == '&') {
350 /* address of symbol */
351 if (IS_AST_SYM_VALUE (expr->left)) {
352 val = copyValue (AST_VALUE (expr->left));
353 val->type = newLink ();
354 if (SPEC_SCLS (expr->left->etype) == S_CODE) {
355 DCL_TYPE (val->type) = CPOINTER;
356 DCL_PTR_CONST (val->type) = port->mem.code_ro;
358 else if (SPEC_SCLS (expr->left->etype) == S_XDATA)
359 DCL_TYPE (val->type) = FPOINTER;
360 else if (SPEC_SCLS (expr->left->etype) == S_XSTACK)
361 DCL_TYPE (val->type) = PPOINTER;
362 else if (SPEC_SCLS (expr->left->etype) == S_IDATA)
363 DCL_TYPE (val->type) = IPOINTER;
364 else if (SPEC_SCLS (expr->left->etype) == S_EEPROM)
365 DCL_TYPE (val->type) = EEPPOINTER;
367 DCL_TYPE (val->type) = POINTER;
368 val->type->next = expr->left->ftype;
369 val->etype = getSpec (val->type);
373 /* if address of indexed array */
374 if (IS_AST_OP (expr->left) && expr->left->opval.op == '[')
375 return valForArray (expr->left);
377 /* if address of structure element then
379 if (IS_AST_OP (expr->left) &&
380 expr->left->opval.op == '.') {
381 return valForStructElem (expr->left->left,
386 (&some_struct)->element */
387 if (IS_AST_OP (expr->left) &&
388 expr->left->opval.op == PTR_OP &&
389 IS_ADDRESS_OF_OP (expr->left->left)) {
390 return valForStructElem (expr->left->left->left,
394 /* case 3. (((char *) &a) +/- constant) */
395 if (IS_AST_OP (expr) &&
396 (expr->opval.op == '+' || expr->opval.op == '-') &&
397 IS_AST_OP (expr->left) && expr->left->opval.op == CAST &&
398 IS_AST_OP (expr->left->right) &&
399 expr->left->right->opval.op == '&' &&
400 IS_AST_LIT_VALUE (expr->right)) {
402 return valForCastAggr (expr->left->right->left,
403 expr->left->left->opval.lnk,
404 expr->right, expr->opval.op);
408 /* case 4. (char *)(array type) */
409 if (IS_CAST_OP(expr) && IS_AST_SYM_VALUE (expr->right) &&
410 IS_ARRAY(expr->right->ftype)) {
412 val = copyValue (AST_VALUE (expr->right));
413 val->type = newLink ();
414 if (SPEC_SCLS (expr->right->etype) == S_CODE) {
415 DCL_TYPE (val->type) = CPOINTER;
416 DCL_PTR_CONST (val->type) = port->mem.code_ro;
418 else if (SPEC_SCLS (expr->right->etype) == S_XDATA)
419 DCL_TYPE (val->type) = FPOINTER;
420 else if (SPEC_SCLS (expr->right->etype) == S_XSTACK)
421 DCL_TYPE (val->type) = PPOINTER;
422 else if (SPEC_SCLS (expr->right->etype) == S_IDATA)
423 DCL_TYPE (val->type) = IPOINTER;
424 else if (SPEC_SCLS (expr->right->etype) == S_EEPROM)
425 DCL_TYPE (val->type) = EEPPOINTER;
427 DCL_TYPE (val->type) = POINTER;
428 val->type->next = expr->right->ftype->next;
429 val->etype = getSpec (val->type);
433 werror (W_INIT_WRONG);
438 /*-----------------------------------------------------------------*/
439 /* printChar - formats and prints a characater string with DB */
440 /*-----------------------------------------------------------------*/
442 printChar (FILE * ofile, char *s, int plen)
445 int len = strlen (s);
450 while (len && pplen < plen)
453 while (i && *s && pplen < plen)
455 if (*s < ' ' || *s == '\"' || *s=='\\')
459 tfprintf (ofile, "\t!ascii\n", buf);
460 tfprintf (ofile, "\t!db !constbyte\n", (unsigned char)*s);
475 tfprintf (ofile, "\t!ascii\n", buf);
484 tfprintf (ofile, "\t!db !constbyte\n", 0);
487 /*-----------------------------------------------------------------*/
488 /* return the generic pointer high byte for a given pointer type. */
489 /*-----------------------------------------------------------------*/
491 pointerTypeToGPByte (const int p_type, const char *iname, const char *oname)
499 /* hack - if we get a generic pointer, we just assume
500 * it's an FPOINTER (i.e. in XDATA space).
502 werror (E_CANNOT_USE_GENERIC_POINTER, iname, oname);
512 fprintf (stderr, "*** internal error: unknown pointer type %d in GPByte.\n",
520 /*-----------------------------------------------------------------*/
521 /* printPointerType - generates ival for pointer type */
522 /*-----------------------------------------------------------------*/
524 _printPointerType (FILE * oFile, const char *name)
526 /* if (TARGET_IS_DS390) */
527 if (options.model == MODEL_FLAT24)
529 fprintf (oFile, "\t.byte %s,(%s >> 8),(%s >> 16)", name, name, name);
533 fprintf (oFile, "\t.byte %s,(%s >> 8)", name, name);
537 /*-----------------------------------------------------------------*/
538 /* printPointerType - generates ival for pointer type */
539 /*-----------------------------------------------------------------*/
541 printPointerType (FILE * oFile, const char *name)
543 _printPointerType (oFile, name);
544 fprintf (oFile, "\n");
547 /*-----------------------------------------------------------------*/
548 /* printGPointerType - generates ival for generic pointer type */
549 /*-----------------------------------------------------------------*/
551 printGPointerType (FILE * oFile, const char *iname, const char *oname,
552 const unsigned int type)
554 _printPointerType (oFile, iname);
555 fprintf (oFile, ",#0x%02x\n", pointerTypeToGPByte (type, iname, oname));
558 /*-----------------------------------------------------------------*/
559 /* printIvalType - generates ival for int/char */
560 /*-----------------------------------------------------------------*/
562 printIvalType (symbol *sym, sym_link * type, initList * ilist, FILE * oFile)
566 /* if initList is deep */
567 if (ilist->type == INIT_DEEP)
568 ilist = ilist->init.deep;
570 if (!IS_AGGREGATE(sym->type) && getNelements(type, ilist)>1) {
571 werror (W_EXCESS_INITIALIZERS, "scalar", sym->name, sym->lineDef);
574 if (!(val = list2val (ilist))) {
575 // assuming a warning has been thrown
579 if (val->type != type) {
580 val = valCastLiteral(type, floatFromVal(val));
583 switch (getSize (type)) {
586 tfprintf (oFile, "\t!db !constbyte\n", 0);
588 tfprintf (oFile, "\t!dbs\n",
589 aopLiteral (val, 0));
593 if (port->use_dw_for_init)
594 tfprintf (oFile, "\t!dws\n", aopLiteralLong (val, 0, 2));
596 fprintf (oFile, "\t.byte %s,%s\n", aopLiteral (val, 0), aopLiteral (val, 1));
600 tfprintf (oFile, "\t!dw !constword\n", 0);
601 tfprintf (oFile, "\t!dw !constword\n", 0);
604 fprintf (oFile, "\t.byte %s,%s,%s,%s\n",
605 aopLiteral (val, 0), aopLiteral (val, 1),
606 aopLiteral (val, 2), aopLiteral (val, 3));
612 /*-----------------------------------------------------------------*/
613 /* printIvalBitFields - generate initializer for bitfields */
614 /*-----------------------------------------------------------------*/
615 void printIvalBitFields(symbol **sym, initList **ilist, FILE * oFile)
619 initList *lilist = *ilist ;
620 unsigned long ival = 0;
626 val = list2val(lilist);
628 if (SPEC_BLEN(lsym->etype) > 8) {
629 size += ((SPEC_BLEN (lsym->etype) / 8) +
630 (SPEC_BLEN (lsym->etype) % 8 ? 1 : 0));
633 size = ((SPEC_BLEN (lsym->etype) / 8) +
634 (SPEC_BLEN (lsym->etype) % 8 ? 1 : 0));
636 i = (unsigned long)floatFromVal(val);
637 i <<= SPEC_BSTR (lsym->etype);
639 if (! ( lsym->next &&
640 (IS_BITFIELD(lsym->next->type)) &&
641 (SPEC_BSTR(lsym->next->etype)))) break;
643 lilist = lilist->next;
647 tfprintf (oFile, "\t!db !constbyte\n",ival);
651 tfprintf (oFile, "\t!dw !constword\n",ival);
654 tfprintf (oFile, "\t!db !constword,!constword\n",
655 (ival >> 8) & 0xffff, (ival & 0xffff));
662 /*-----------------------------------------------------------------*/
663 /* printIvalStruct - generates initial value for structures */
664 /*-----------------------------------------------------------------*/
666 printIvalStruct (symbol * sym, sym_link * type,
667 initList * ilist, FILE * oFile)
672 sflds = SPEC_STRUCT (type)->fields;
673 if (ilist->type != INIT_DEEP) {
674 werror (E_INIT_STRUCT, sym->name);
678 iloop = ilist->init.deep;
680 for (; sflds; sflds = sflds->next, iloop = (iloop ? iloop->next : NULL)) {
681 if (IS_BITFIELD(sflds->type)) {
682 printIvalBitFields(&sflds,&iloop,oFile);
684 printIval (sym, sflds->type, iloop, oFile);
688 werror (W_EXCESS_INITIALIZERS, "struct", sym->name, sym->lineDef);
693 /*-----------------------------------------------------------------*/
694 /* printIvalChar - generates initital value for character array */
695 /*-----------------------------------------------------------------*/
697 printIvalChar (sym_link * type, initList * ilist, FILE * oFile, char *s)
705 val = list2val (ilist);
706 /* if the value is a character string */
707 if (IS_ARRAY (val->type) && IS_CHAR (val->etype))
709 if (!DCL_ELEM (type))
710 DCL_ELEM (type) = strlen (SPEC_CVAL (val->etype).v_char) + 1;
712 printChar (oFile, SPEC_CVAL (val->etype).v_char, DCL_ELEM (type));
714 if ((remain = (DCL_ELEM (type) - strlen (SPEC_CVAL (val->etype).v_char) - 1)) > 0)
716 tfprintf (oFile, "\t!db !constbyte\n", 0);
724 printChar (oFile, s, strlen (s) + 1);
728 /*-----------------------------------------------------------------*/
729 /* printIvalArray - generates code for array initialization */
730 /*-----------------------------------------------------------------*/
732 printIvalArray (symbol * sym, sym_link * type, initList * ilist,
736 int lcnt = 0, size = 0;
738 /* take care of the special case */
739 /* array of characters can be init */
741 if (IS_CHAR (type->next))
742 if (printIvalChar (type,
743 (ilist->type == INIT_DEEP ? ilist->init.deep : ilist),
744 oFile, SPEC_CVAL (sym->etype).v_char))
747 /* not the special case */
748 if (ilist->type != INIT_DEEP)
750 werror (E_INIT_STRUCT, sym->name);
754 iloop = ilist->init.deep;
755 lcnt = DCL_ELEM (type);
760 printIval (sym, type->next, iloop, oFile);
761 iloop = (iloop ? iloop->next : NULL);
764 /* if not array limits given & we */
765 /* are out of initialisers then */
766 if (!DCL_ELEM (type) && !iloop)
769 /* no of elements given and we */
770 /* have generated for all of them */
772 /* if initializers left */
774 werror (W_EXCESS_INITIALIZERS, "array", sym->name, sym->lineDef);
780 /* if we have not been given a size */
781 if (!DCL_ELEM (type))
782 DCL_ELEM (type) = size;
787 /*-----------------------------------------------------------------*/
788 /* printIvalFuncPtr - generate initial value for function pointers */
789 /*-----------------------------------------------------------------*/
791 printIvalFuncPtr (sym_link * type, initList * ilist, FILE * oFile)
796 val = list2val (ilist);
797 /* check the types */
798 if ((dLvl = compareType (val->type, type->next)) <= 0)
800 tfprintf (oFile, "\t!dw !constword\n", 0);
804 /* now generate the name */
807 if (port->use_dw_for_init)
809 tfprintf (oFile, "\t!dws\n", val->name);
813 printPointerType (oFile, val->name);
816 else if (port->use_dw_for_init)
818 tfprintf (oFile, "\t!dws\n", val->sym->rname);
822 printPointerType (oFile, val->sym->rname);
828 /*-----------------------------------------------------------------*/
829 /* printIvalCharPtr - generates initial values for character pointers */
830 /*-----------------------------------------------------------------*/
832 printIvalCharPtr (symbol * sym, sym_link * type, value * val, FILE * oFile)
836 /* PENDING: this is _very_ mcs51 specific, including a magic
838 It's also endin specific.
840 size = getSize (type);
842 if (val->name && strlen (val->name))
844 if (size == 1) /* This appears to be Z80 specific?? */
847 "\t!dbs\n", val->name);
849 else if (size == FPTRSIZE)
851 if (port->use_dw_for_init)
853 tfprintf (oFile, "\t!dws\n", val->name);
857 printPointerType (oFile, val->name);
860 else if (size == GPTRSIZE)
863 if (IS_PTR (val->type)) {
864 type = DCL_TYPE (val->type);
866 type = PTR_TYPE (SPEC_OCLS (val->etype));
868 if (val->sym && val->sym->isstrlit) {
869 // this is a literal string
872 printGPointerType (oFile, val->name, sym->name, type);
876 fprintf (stderr, "*** internal error: unknown size in "
877 "printIvalCharPtr.\n");
882 // these are literals assigned to pointers
886 tfprintf (oFile, "\t!dbs\n", aopLiteral (val, 0));
889 if (port->use_dw_for_init)
890 tfprintf (oFile, "\t!dws\n", aopLiteralLong (val, 0, size));
892 tfprintf (oFile, "\t.byte %s,%s\n",
893 aopLiteral (val, 0), aopLiteral (val, 1));
896 // mcs51 generic pointer
897 if (floatFromVal(val)!=0) {
898 werror (E_LITERAL_GENERIC);
900 fprintf (oFile, "\t.byte %s,%s,%s\n",
903 aopLiteral (val, 2));
906 // ds390 generic pointer
907 if (floatFromVal(val)!=0) {
908 werror (E_LITERAL_GENERIC);
910 fprintf (oFile, "\t.byte %s,%s,%s,%s\n",
914 aopLiteral (val, 3));
921 if (val->sym && val->sym->isstrlit && !isinSet(statsg->syms, val->sym)) {
922 addSet (&statsg->syms, val->sym);
928 /*-----------------------------------------------------------------*/
929 /* printIvalPtr - generates initial value for pointers */
930 /*-----------------------------------------------------------------*/
932 printIvalPtr (symbol * sym, sym_link * type, initList * ilist, FILE * oFile)
938 if (ilist->type == INIT_DEEP)
939 ilist = ilist->init.deep;
941 /* function pointer */
942 if (IS_FUNC (type->next))
944 printIvalFuncPtr (type, ilist, oFile);
948 if (!(val = initPointer (ilist)))
951 /* if character pointer */
952 if (IS_CHAR (type->next))
953 if (printIvalCharPtr (sym, type, val, oFile))
957 if (compareType (type, val->type) == 0)
958 werror (W_INIT_WRONG);
960 /* if val is literal */
961 if (IS_LITERAL (val->etype))
963 switch (getSize (type))
966 tfprintf (oFile, "\t!db !constbyte\n", (unsigned int) floatFromVal (val) & 0xff);
969 if (port->use_dw_for_init)
970 tfprintf (oFile, "\t!dws\n", aopLiteralLong (val, 0, 2));
972 tfprintf (oFile, "\t.byte %s,%s\n", aopLiteral (val, 0), aopLiteral (val, 1));
975 fprintf (oFile, "\t.byte %s,%s,#0x02\n",
976 aopLiteral (val, 0), aopLiteral (val, 1));
982 size = getSize (type);
984 if (size == 1) /* Z80 specific?? */
986 tfprintf (oFile, "\t!dbs\n", val->name);
988 else if (size == FPTRSIZE)
990 if (port->use_dw_for_init) {
991 tfprintf (oFile, "\t!dws\n", val->name);
993 printPointerType (oFile, val->name);
996 else if (size == GPTRSIZE)
998 printGPointerType (oFile, val->name, sym->name,
999 (IS_PTR (val->type) ? DCL_TYPE (val->type) :
1000 PTR_TYPE (SPEC_OCLS (val->etype))));
1005 /*-----------------------------------------------------------------*/
1006 /* printIval - generates code for initial value */
1007 /*-----------------------------------------------------------------*/
1009 printIval (symbol * sym, sym_link * type, initList * ilist, FILE * oFile)
1014 /* if structure then */
1015 if (IS_STRUCT (type))
1017 printIvalStruct (sym, type, ilist, oFile);
1021 /* if this is a pointer */
1024 printIvalPtr (sym, type, ilist, oFile);
1028 /* if this is an array */
1029 if (IS_ARRAY (type))
1031 printIvalArray (sym, type, ilist, oFile);
1035 /* if type is SPECIFIER */
1038 printIvalType (sym, type, ilist, oFile);
1043 /*-----------------------------------------------------------------*/
1044 /* emitStaticSeg - emitcode for the static segment */
1045 /*-----------------------------------------------------------------*/
1047 emitStaticSeg (memmap * map, FILE * out)
1051 /* fprintf(out, "\t.area\t%s\n", map->sname); */
1053 /* for all variables in this segment do */
1054 for (sym = setFirstItem (map->syms); sym;
1055 sym = setNextItem (map->syms))
1058 /* if it is "extern" then do nothing */
1059 if (IS_EXTERN (sym->etype))
1062 /* if it is not static add it to the public
1064 if (!IS_STATIC (sym->etype))
1066 addSetHead (&publics, sym);
1069 /* print extra debug info if required */
1070 if (options.debug) {
1071 cdbSymbol (sym, cdbFile, FALSE, FALSE);
1074 if (IS_STATIC (sym->etype))
1075 fprintf (out, "F%s$", moduleName); /* scope is file */
1077 fprintf (out, "G$"); /* scope is global */
1080 /* symbol is local */
1081 fprintf (out, "L%s$",
1082 (sym->localof ? sym->localof->name : "-null-"));
1083 fprintf (out, "%s$%d$%d", sym->name, sym->level, sym->block);
1086 /* if it has an absolute address */
1087 if (SPEC_ABSA (sym->etype))
1090 fprintf (out, " == 0x%04x\n", SPEC_ADDR (sym->etype));
1092 fprintf (out, "%s\t=\t0x%04x\n",
1094 SPEC_ADDR (sym->etype));
1099 fprintf (out, " == .\n");
1101 /* if it has an initial value */
1104 fprintf (out, "%s:\n", sym->rname);
1106 resolveIvalSym (sym->ival);
1107 printIval (sym, sym->type, sym->ival, out);
1111 /* allocate space */
1112 int size = getSize (sym->type);
1115 werror(E_UNKNOWN_SIZE,sym->name);
1117 fprintf (out, "%s:\n", sym->rname);
1118 /* special case for character strings */
1119 if (IS_ARRAY (sym->type) && IS_CHAR (sym->type->next) &&
1120 SPEC_CVAL (sym->etype).v_char)
1122 SPEC_CVAL (sym->etype).v_char,
1123 strlen (SPEC_CVAL (sym->etype).v_char) + 1);
1125 tfprintf (out, "\t!ds\n", (unsigned int) size & 0xffff);
1131 /*-----------------------------------------------------------------*/
1132 /* emitMaps - emits the code for the data portion the code */
1133 /*-----------------------------------------------------------------*/
1138 /* no special considerations for the following
1139 data, idata & bit & xdata */
1140 emitRegularMap (data, TRUE, TRUE);
1141 emitRegularMap (idata, TRUE, TRUE);
1142 emitRegularMap (bit, TRUE, FALSE);
1143 emitRegularMap (xdata, TRUE, TRUE);
1144 if (port->genXINIT) {
1145 emitRegularMap (xidata, TRUE, TRUE);
1147 emitRegularMap (sfr, FALSE, FALSE);
1148 emitRegularMap (sfrbit, FALSE, FALSE);
1149 emitRegularMap (home, TRUE, FALSE);
1150 emitRegularMap (code, TRUE, FALSE);
1152 emitStaticSeg (statsg, code->oFile);
1153 if (port->genXINIT) {
1154 fprintf (code->oFile, "\t.area\t%s\n", xinit->sname);
1155 emitStaticSeg (xinit, code->oFile);
1160 /*-----------------------------------------------------------------*/
1161 /* flushStatics - flush all currently defined statics out to file */
1162 /* and delete. Temporary function */
1163 /*-----------------------------------------------------------------*/
1167 emitStaticSeg (statsg, codeOutFile);
1168 statsg->syms = NULL;
1171 /*-----------------------------------------------------------------*/
1172 /* createInterruptVect - creates the interrupt vector */
1173 /*-----------------------------------------------------------------*/
1175 createInterruptVect (FILE * vFile)
1178 mainf = newSymbol ("main", 0);
1181 /* only if the main function exists */
1182 if (!(mainf = findSymWithLevel (SymbolTab, mainf)))
1184 if (!options.cc_only && !noAssemble)
1189 /* if the main is only a prototype ie. no body then do nothing */
1190 if (!IFFUNC_HASBODY(mainf->type))
1192 /* if ! compile only then main function should be present */
1193 if (!options.cc_only && !noAssemble)
1198 tfprintf (vFile, "\t!areacode\n", CODE_NAME);
1199 fprintf (vFile, "__interrupt_vect:\n");
1202 if (!port->genIVT || !(port->genIVT (vFile, interrupts, maxInterrupts)))
1204 /* "generic" interrupt table header (if port doesn't specify one).
1205 * Look suspiciously like 8051 code to me...
1208 fprintf (vFile, "\tljmp\t__sdcc_gsinit_startup\n");
1211 /* now for the other interrupts */
1212 for (; i < maxInterrupts; i++)
1215 fprintf (vFile, "\tljmp\t%s\n\t.ds\t5\n", interrupts[i]->rname);
1217 fprintf (vFile, "\treti\n\t.ds\t7\n");
1224 ";--------------------------------------------------------\n"
1225 "; File Created by SDCC : FreeWare ANSI-C Compiler\n"};
1229 ";--------------------------------------------------------\n"};
1232 /*-----------------------------------------------------------------*/
1233 /* initialComments - puts in some initial comments */
1234 /*-----------------------------------------------------------------*/
1236 initialComments (FILE * afile)
1240 fprintf (afile, "%s", iComments1);
1241 fprintf (afile, "; Version %s %s\n", VersionString, asctime (localtime (&t)));
1242 fprintf (afile, "%s", iComments2);
1245 /*-----------------------------------------------------------------*/
1246 /* printPublics - generates .global for publics */
1247 /*-----------------------------------------------------------------*/
1249 printPublics (FILE * afile)
1253 fprintf (afile, "%s", iComments2);
1254 fprintf (afile, "; Public variables in this module\n");
1255 fprintf (afile, "%s", iComments2);
1257 for (sym = setFirstItem (publics); sym;
1258 sym = setNextItem (publics))
1259 tfprintf (afile, "\t!global\n", sym->rname);
1262 /*-----------------------------------------------------------------*/
1263 /* printExterns - generates .global for externs */
1264 /*-----------------------------------------------------------------*/
1266 printExterns (FILE * afile)
1270 fprintf (afile, "%s", iComments2);
1271 fprintf (afile, "; Externals used\n");
1272 fprintf (afile, "%s", iComments2);
1274 for (sym = setFirstItem (externs); sym;
1275 sym = setNextItem (externs))
1276 tfprintf (afile, "\t!extern\n", sym->rname);
1279 /*-----------------------------------------------------------------*/
1280 /* emitOverlay - will emit code for the overlay stuff */
1281 /*-----------------------------------------------------------------*/
1283 emitOverlay (FILE * afile)
1287 if (!elementsInSet (ovrSetSets))
1288 tfprintf (afile, "\t!area\n", port->mem.overlay_name);
1290 /* for each of the sets in the overlay segment do */
1291 for (ovrset = setFirstItem (ovrSetSets); ovrset;
1292 ovrset = setNextItem (ovrSetSets))
1297 if (elementsInSet (ovrset))
1300 /* this dummy area is used to fool the assembler
1301 otherwise the assembler will append each of these
1302 declarations into one chunk and will not overlay
1304 fprintf (afile, "\t.area _DUMMY\n");
1306 /* not anymore since asmain.c:1.13 */
1308 /* output the area informtion */
1309 fprintf (afile, "\t.area\t%s\n", port->mem.overlay_name); /* MOF */
1312 for (sym = setFirstItem (ovrset); sym;
1313 sym = setNextItem (ovrset))
1316 /* if extern then add it to the publics tabledo nothing */
1317 if (IS_EXTERN (sym->etype))
1320 /* if allocation required check is needed
1321 then check if the symbol really requires
1322 allocation only for local variables */
1323 if (!IS_AGGREGATE (sym->type) &&
1324 !(sym->_isparm && !IS_REGPARM (sym->etype))
1325 && !sym->allocreq && sym->level)
1328 /* if global variable & not static or extern
1329 and addPublics allowed then add it to the public set */
1330 if ((sym->_isparm && !IS_REGPARM (sym->etype))
1331 && !IS_STATIC (sym->etype))
1333 addSetHead (&publics, sym);
1336 /* if extern then do nothing or is a function
1338 if (IS_FUNC (sym->type))
1341 /* print extra debug info if required */
1344 cdbSymbol (sym, cdbFile, FALSE, FALSE);
1348 if (IS_STATIC (sym->etype))
1349 fprintf (afile, "F%s$", moduleName); /* scope is file */
1351 fprintf (afile, "G$"); /* scope is global */
1354 /* symbol is local */
1355 fprintf (afile, "L%s$",
1356 (sym->localof ? sym->localof->name : "-null-"));
1357 fprintf (afile, "%s$%d$%d", sym->name, sym->level, sym->block);
1360 /* if is has an absolute address then generate
1361 an equate for this no need to allocate space */
1362 if (SPEC_ABSA (sym->etype))
1366 fprintf (afile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
1368 fprintf (afile, "%s\t=\t0x%04x\n",
1370 SPEC_ADDR (sym->etype));
1373 int size = getSize(sym->type);
1376 werror(E_UNKNOWN_SIZE,sym->name);
1379 fprintf (afile, "==.\n");
1381 /* allocate space */
1382 tfprintf (afile, "!labeldef\n", sym->rname);
1383 tfprintf (afile, "\t!ds\n", (unsigned int) getSize (sym->type) & 0xffff);
1390 /*-----------------------------------------------------------------*/
1391 /* glue - the final glue that hold the whole thing together */
1392 /*-----------------------------------------------------------------*/
1398 FILE *ovrFile = tempfile ();
1400 addSetHead (&tmpfileSet, ovrFile);
1401 /* print the global struct definitions */
1403 cdbStructBlock (0, cdbFile);
1405 vFile = tempfile ();
1406 /* PENDING: this isnt the best place but it will do */
1407 if (port->general.glue_up_main)
1409 /* create the interrupt vector table */
1410 createInterruptVect (vFile);
1413 addSetHead (&tmpfileSet, vFile);
1415 /* emit code for the all the variables declared */
1417 /* do the overlay segments */
1418 emitOverlay (ovrFile);
1420 /* now put it all together into the assembler file */
1421 /* create the assembler file name */
1423 if (!options.c1mode)
1425 sprintf (scratchFileName, srcFileName);
1426 strcat (scratchFileName, port->assembler.file_ext);
1430 strcpy (scratchFileName, options.out_name);
1433 if (!(asmFile = fopen (scratchFileName, "w")))
1435 werror (E_FILE_OPEN_ERR, scratchFileName);
1439 /* initial comments */
1440 initialComments (asmFile);
1442 /* print module name */
1443 tfprintf (asmFile, "\t!module\n", moduleName);
1444 tfprintf (asmFile, "\t!fileprelude\n");
1446 /* Let the port generate any global directives, etc. */
1447 if (port->genAssemblerPreamble)
1449 port->genAssemblerPreamble (asmFile);
1452 /* print the global variables in this module */
1453 printPublics (asmFile);
1454 if (port->assembler.externGlobal)
1455 printExterns (asmFile);
1457 /* copy the sfr segment */
1458 fprintf (asmFile, "%s", iComments2);
1459 fprintf (asmFile, "; special function registers\n");
1460 fprintf (asmFile, "%s", iComments2);
1461 copyFile (asmFile, sfr->oFile);
1463 /* copy the sbit segment */
1464 fprintf (asmFile, "%s", iComments2);
1465 fprintf (asmFile, "; special function bits \n");
1466 fprintf (asmFile, "%s", iComments2);
1467 copyFile (asmFile, sfrbit->oFile);
1469 /* copy the data segment */
1470 fprintf (asmFile, "%s", iComments2);
1471 fprintf (asmFile, "; internal ram data\n");
1472 fprintf (asmFile, "%s", iComments2);
1473 copyFile (asmFile, data->oFile);
1476 /* create the overlay segments */
1477 fprintf (asmFile, "%s", iComments2);
1478 fprintf (asmFile, "; overlayable items in internal ram \n");
1479 fprintf (asmFile, "%s", iComments2);
1480 copyFile (asmFile, ovrFile);
1482 /* create the stack segment MOF */
1483 if (mainf && IFFUNC_HASBODY(mainf->type))
1485 fprintf (asmFile, "%s", iComments2);
1486 fprintf (asmFile, "; Stack segment in internal ram \n");
1487 fprintf (asmFile, "%s", iComments2);
1488 fprintf (asmFile, "\t.area\tSSEG\t(DATA)\n"
1489 "__start__stack:\n\t.ds\t1\n\n");
1492 /* create the idata segment */
1493 fprintf (asmFile, "%s", iComments2);
1494 fprintf (asmFile, "; indirectly addressable internal ram data\n");
1495 fprintf (asmFile, "%s", iComments2);
1496 copyFile (asmFile, idata->oFile);
1498 /* copy the bit segment */
1499 fprintf (asmFile, "%s", iComments2);
1500 fprintf (asmFile, "; bit data\n");
1501 fprintf (asmFile, "%s", iComments2);
1502 copyFile (asmFile, bit->oFile);
1504 /* if external stack then reserve space of it */
1505 if (mainf && IFFUNC_HASBODY(mainf->type) && options.useXstack)
1507 fprintf (asmFile, "%s", iComments2);
1508 fprintf (asmFile, "; external stack \n");
1509 fprintf (asmFile, "%s", iComments2);
1510 fprintf (asmFile, "\t.area XSEG (XDATA)\n"); /* MOF */
1511 fprintf (asmFile, "\t.ds 256\n");
1515 /* copy xtern ram data */
1516 fprintf (asmFile, "%s", iComments2);
1517 fprintf (asmFile, "; external ram data\n");
1518 fprintf (asmFile, "%s", iComments2);
1519 copyFile (asmFile, xdata->oFile);
1521 /* copy xternal initialized ram data */
1522 fprintf (asmFile, "%s", iComments2);
1523 fprintf (asmFile, "; external initialized ram data\n");
1524 fprintf (asmFile, "%s", iComments2);
1525 copyFile (asmFile, xidata->oFile);
1527 /* copy the interrupt vector table */
1528 if (mainf && IFFUNC_HASBODY(mainf->type))
1530 fprintf (asmFile, "%s", iComments2);
1531 fprintf (asmFile, "; interrupt vector \n");
1532 fprintf (asmFile, "%s", iComments2);
1533 copyFile (asmFile, vFile);
1536 /* copy global & static initialisations */
1537 fprintf (asmFile, "%s", iComments2);
1538 fprintf (asmFile, "; global & static initialisations\n");
1539 fprintf (asmFile, "%s", iComments2);
1541 /* Everywhere we generate a reference to the static_name area,
1542 * (which is currently only here), we immediately follow it with a
1543 * definition of the post_static_name area. This guarantees that
1544 * the post_static_name area will immediately follow the static_name
1547 tfprintf (asmFile, "\t!area\n", port->mem.static_name); /* MOF */
1548 tfprintf (asmFile, "\t!area\n", port->mem.post_static_name);
1549 tfprintf (asmFile, "\t!area\n", port->mem.static_name);
1551 if (mainf && IFFUNC_HASBODY(mainf->type))
1553 fprintf (asmFile, "__sdcc_gsinit_startup:\n");
1554 /* if external stack is specified then the
1555 higher order byte of the xdatalocation is
1556 going into P2 and the lower order going into
1558 if (options.useXstack)
1560 fprintf (asmFile, "\tmov\tP2,#0x%02x\n",
1561 (((unsigned int) options.xdata_loc) >> 8) & 0xff);
1562 fprintf (asmFile, "\tmov\t_spx,#0x%02x\n",
1563 (unsigned int) options.xdata_loc & 0xff);
1566 /* initialise the stack pointer */
1567 /* if the user specified a value then use it */
1568 if (options.stack_loc)
1569 fprintf (asmFile, "\tmov\tsp,#%d\n", options.stack_loc & 0xff);
1571 /* no: we have to compute it */
1572 if (!options.stackOnData && maxRegBank <= 3)
1573 fprintf (asmFile, "\tmov\tsp,#%d\n", ((maxRegBank + 1) * 8) - 1);
1575 fprintf (asmFile, "\tmov\tsp,#__start__stack\n"); /* MOF */
1577 fprintf (asmFile, "\tlcall\t__sdcc_external_startup\n");
1578 fprintf (asmFile, "\tmov\ta,dpl\n");
1579 fprintf (asmFile, "\tjz\t__sdcc_init_data\n");
1580 fprintf (asmFile, "\tljmp\t__sdcc_program_startup\n");
1581 fprintf (asmFile, "__sdcc_init_data:\n");
1583 // if the port can copy the XINIT segment to XISEG
1584 if (port->genXINIT) {
1585 port->genXINIT(asmFile);
1589 copyFile (asmFile, statsg->oFile);
1591 if (port->general.glue_up_main && mainf && IFFUNC_HASBODY(mainf->type))
1593 /* This code is generated in the post-static area.
1594 * This area is guaranteed to follow the static area
1595 * by the ugly shucking and jiving about 20 lines ago.
1597 tfprintf (asmFile, "\t!area\n", port->mem.post_static_name);
1598 fprintf (asmFile, "\tljmp\t__sdcc_program_startup\n");
1604 "%s", iComments2, iComments2);
1605 tfprintf (asmFile, "\t!areahome\n", HOME_NAME);
1606 copyFile (asmFile, home->oFile);
1608 /* copy over code */
1609 fprintf (asmFile, "%s", iComments2);
1610 fprintf (asmFile, "; code\n");
1611 fprintf (asmFile, "%s", iComments2);
1612 tfprintf (asmFile, "\t!areacode\n", CODE_NAME);
1613 if (mainf && IFFUNC_HASBODY(mainf->type))
1616 /* entry point @ start of CSEG */
1617 fprintf (asmFile, "__sdcc_program_startup:\n");
1619 /* put in the call to main */
1620 fprintf (asmFile, "\tlcall\t_main\n");
1621 if (options.mainreturn)
1624 fprintf (asmFile, ";\treturn from main ; will return to caller\n");
1625 fprintf (asmFile, "\tret\n");
1631 fprintf (asmFile, ";\treturn from main will lock up\n");
1632 fprintf (asmFile, "\tsjmp .\n");
1635 copyFile (asmFile, code->oFile);
1637 if (port->genAssemblerEnd) {
1638 port->genAssemblerEnd(asmFile);
1641 applyToSet (tmpfileSet, closeTmpFiles);
1642 applyToSet (tmpfileNameSet, rmTmpFiles);
1645 #if defined (__MINGW32__) || defined (__CYGWIN__) || defined (_MSC_VER)
1649 applyToSet (tmpfileSet, closeTmpFiles);
1650 applyToSet (tmpfileNameSet, rmTmpFiles);
1654 /** Creates a temporary file name a'la tmpnam which avoids the bugs
1655 in cygwin wrt c:\tmp.
1656 Scans, in order: TMP, TEMP, TMPDIR, else uses tmpfile().
1661 #if !defined(_MSC_VER)
1662 const char *tmpdir = NULL;
1664 tmpdir = getenv ("TMP");
1665 else if (getenv ("TEMP"))
1666 tmpdir = getenv ("TEMP");
1667 else if (getenv ("TMPDIR"))
1668 tmpdir = getenv ("TMPDIR");
1671 char *name = tempnam (tmpdir, "sdcc");
1678 return tmpnam (NULL);
1681 /** Creates a temporary file a'la tmpfile which avoids the bugs
1682 in cygwin wrt c:\tmp.
1683 Scans, in order: TMP, TEMP, TMPDIR, else uses tmpfile().
1688 #if !defined(_MSC_VER)
1689 const char *tmpdir = NULL;
1691 tmpdir = getenv ("TMP");
1692 else if (getenv ("TEMP"))
1693 tmpdir = getenv ("TEMP");
1694 else if (getenv ("TMPDIR"))
1695 tmpdir = getenv ("TMPDIR");
1698 char *name = Safe_strdup( tempnam (tmpdir, "sdcc"));
1701 FILE *fp = fopen (name, "w+b");
1704 addSetHead (&tmpfileNameSet, name);