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)
165 /* PENDING: special case here - should remove */
166 if (!strcmp (map->sname, CODE_NAME))
167 tfprintf (map->oFile, "\t!areacode\n", map->sname);
168 else if (!strcmp (map->sname, DATA_NAME))
169 tfprintf (map->oFile, "\t!areadata\n", map->sname);
170 else if (!strcmp (map->sname, HOME_NAME))
171 tfprintf (map->oFile, "\t!areahome\n", map->sname);
173 tfprintf (map->oFile, "\t!area\n", map->sname);
176 for (sym = setFirstItem (map->syms); sym;
177 sym = setNextItem (map->syms))
181 /* if extern then add it into the extern list */
182 if (IS_EXTERN (sym->etype))
184 addSetHead (&externs, sym);
188 /* if allocation required check is needed
189 then check if the symbol really requires
190 allocation only for local variables */
192 if (arFlag && !IS_AGGREGATE (sym->type) &&
193 !(sym->_isparm && !IS_REGPARM (sym->etype)) &&
194 !sym->allocreq && sym->level)
197 /* for bitvar locals and parameters */
198 if (!arFlag && !sym->allocreq && sym->level
199 && !SPEC_ABSA (sym->etype)) {
203 /* if global variable & not static or extern
204 and addPublics allowed then add it to the public set */
205 if ((sym->level == 0 ||
206 (sym->_isparm && !IS_REGPARM (sym->etype))) &&
208 !IS_STATIC (sym->etype) &&
209 (IS_FUNC(sym->type) ? (sym->used || IFFUNC_HASBODY(sym->type)) : 1))
211 addSetHead (&publics, sym);
214 /* if extern then do nothing or is a function
216 if (IS_FUNC (sym->type))
219 /* print extra debug info if required */
221 cdbSymbol (sym, cdbFile, FALSE, FALSE);
222 if (!sym->level) /* global */
223 if (IS_STATIC (sym->etype))
224 fprintf (map->oFile, "F%s$", moduleName); /* scope is file */
226 fprintf (map->oFile, "G$"); /* scope is global */
228 /* symbol is local */
229 fprintf (map->oFile, "L%s$", (sym->localof ? sym->localof->name : "-null-"));
230 fprintf (map->oFile, "%s$%d$%d", sym->name, sym->level, sym->block);
233 /* if it has an initial value then do it only if
234 it is a global variable */
235 if (sym->ival && sym->level == 0) {
236 if (SPEC_OCLS(sym->etype)==xidata) {
237 // create a new "XINIT (CODE)" symbol, that will be emitted later
238 newSym=copySymbol (sym);
239 SPEC_OCLS(newSym->etype)=xinit;
240 sprintf (newSym->name, "__xinit_%s", sym->name);
241 sprintf (newSym->rname,"__xinit_%s", sym->rname);
242 SPEC_CONST(newSym->etype)=1;
243 SPEC_STAT(newSym->etype)=1;
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;
263 // set ival's lineno to where the symbol was defined
264 setAstLineno (ival, lineno=sym->lineDef);
265 // check if this is not a constant expression
266 if (!constExprTree(ival)) {
267 werror (E_CONST_EXPECTED, "found expression");
268 // but try to do it anyway
271 eBBlockFromiCode (iCodeFromAst (ival));
278 /* if is has an absolute address then generate
279 an equate for this no need to allocate space */
280 if (SPEC_ABSA (sym->etype))
284 fprintf (map->oFile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
286 if (TARGET_IS_XA51) {
289 } else if (map==bit || map==sfrbit) {
293 fprintf (map->oFile, "%s\t%s\t0x%04x\n",
295 SPEC_ADDR (sym->etype));
298 int size = getSize (sym->type);
300 werror(E_UNKNOWN_SIZE,sym->name);
304 fprintf (map->oFile, "==.\n");
306 if (IS_STATIC (sym->etype))
307 tfprintf (map->oFile, "!slabeldef\n", sym->rname);
309 tfprintf (map->oFile, "!labeldef\n", sym->rname);
310 tfprintf (map->oFile, "\t!ds\n",
311 (unsigned int) size & 0xffff);
316 /*-----------------------------------------------------------------*/
317 /* initPointer - pointer initialization code massaging */
318 /*-----------------------------------------------------------------*/
320 initPointer (initList * ilist, sym_link *toType)
323 ast *expr = list2expr (ilist);
328 /* try it the oldway first */
329 if ((val = constExprValue (expr, FALSE)))
333 if (IS_AST_OP(expr) && expr->opval.op==CAST &&
334 IS_AST_OP(expr->right) && expr->right->opval.op=='&') {
335 if (compareType(toType, expr->left->ftype)!=1) {
336 werror (W_INIT_WRONG);
337 printFromToType(expr->left->ftype, toType);
343 /* no then we have to do these cludgy checks */
344 /* pointers can be initialized with address of
345 a variable or address of an array element */
346 if (IS_AST_OP (expr) && expr->opval.op == '&') {
347 /* address of symbol */
348 if (IS_AST_SYM_VALUE (expr->left)) {
349 val = copyValue (AST_VALUE (expr->left));
350 val->type = newLink ();
351 if (SPEC_SCLS (expr->left->etype) == S_CODE) {
352 DCL_TYPE (val->type) = CPOINTER;
353 DCL_PTR_CONST (val->type) = port->mem.code_ro;
355 else if (SPEC_SCLS (expr->left->etype) == S_XDATA)
356 DCL_TYPE (val->type) = FPOINTER;
357 else if (SPEC_SCLS (expr->left->etype) == S_XSTACK)
358 DCL_TYPE (val->type) = PPOINTER;
359 else if (SPEC_SCLS (expr->left->etype) == S_IDATA)
360 DCL_TYPE (val->type) = IPOINTER;
361 else if (SPEC_SCLS (expr->left->etype) == S_EEPROM)
362 DCL_TYPE (val->type) = EEPPOINTER;
364 DCL_TYPE (val->type) = POINTER;
365 val->type->next = expr->left->ftype;
366 val->etype = getSpec (val->type);
370 /* if address of indexed array */
371 if (IS_AST_OP (expr->left) && expr->left->opval.op == '[')
372 return valForArray (expr->left);
374 /* if address of structure element then
376 if (IS_AST_OP (expr->left) &&
377 expr->left->opval.op == '.') {
378 return valForStructElem (expr->left->left,
383 (&some_struct)->element */
384 if (IS_AST_OP (expr->left) &&
385 expr->left->opval.op == PTR_OP &&
386 IS_ADDRESS_OF_OP (expr->left->left)) {
387 return valForStructElem (expr->left->left->left,
391 /* case 3. (((char *) &a) +/- constant) */
392 if (IS_AST_OP (expr) &&
393 (expr->opval.op == '+' || expr->opval.op == '-') &&
394 IS_AST_OP (expr->left) && expr->left->opval.op == CAST &&
395 IS_AST_OP (expr->left->right) &&
396 expr->left->right->opval.op == '&' &&
397 IS_AST_LIT_VALUE (expr->right)) {
399 return valForCastAggr (expr->left->right->left,
400 expr->left->left->opval.lnk,
401 expr->right, expr->opval.op);
405 /* case 4. (char *)(array type) */
406 if (IS_CAST_OP(expr) && IS_AST_SYM_VALUE (expr->right) &&
407 IS_ARRAY(expr->right->ftype)) {
409 val = copyValue (AST_VALUE (expr->right));
410 val->type = newLink ();
411 if (SPEC_SCLS (expr->right->etype) == S_CODE) {
412 DCL_TYPE (val->type) = CPOINTER;
413 DCL_PTR_CONST (val->type) = port->mem.code_ro;
415 else if (SPEC_SCLS (expr->right->etype) == S_XDATA)
416 DCL_TYPE (val->type) = FPOINTER;
417 else if (SPEC_SCLS (expr->right->etype) == S_XSTACK)
418 DCL_TYPE (val->type) = PPOINTER;
419 else if (SPEC_SCLS (expr->right->etype) == S_IDATA)
420 DCL_TYPE (val->type) = IPOINTER;
421 else if (SPEC_SCLS (expr->right->etype) == S_EEPROM)
422 DCL_TYPE (val->type) = EEPPOINTER;
424 DCL_TYPE (val->type) = POINTER;
425 val->type->next = expr->right->ftype->next;
426 val->etype = getSpec (val->type);
430 werror (W_INIT_WRONG);
435 /*-----------------------------------------------------------------*/
436 /* printChar - formats and prints a characater string with DB */
437 /*-----------------------------------------------------------------*/
439 printChar (FILE * ofile, char *s, int plen)
442 int len = strlen (s);
447 while (len && pplen < plen)
450 while (i && *s && pplen < plen)
452 if (*s < ' ' || *s == '\"' || *s=='\\')
456 tfprintf (ofile, "\t!ascii\n", buf);
457 tfprintf (ofile, "\t!db !constbyte\n", (unsigned char)*s);
472 tfprintf (ofile, "\t!ascii\n", buf);
481 tfprintf (ofile, "\t!db !constbyte\n", 0);
484 /*-----------------------------------------------------------------*/
485 /* return the generic pointer high byte for a given pointer type. */
486 /*-----------------------------------------------------------------*/
488 pointerTypeToGPByte (const int p_type, const char *iname, const char *oname)
496 /* hack - if we get a generic pointer, we just assume
497 * it's an FPOINTER (i.e. in XDATA space).
499 werror (E_CANNOT_USE_GENERIC_POINTER, iname, oname);
509 fprintf (stderr, "*** internal error: unknown pointer type %d in GPByte.\n",
517 /*-----------------------------------------------------------------*/
518 /* printPointerType - generates ival for pointer type */
519 /*-----------------------------------------------------------------*/
521 _printPointerType (FILE * oFile, const char *name)
523 /* if (TARGET_IS_DS390) */
524 if (options.model == MODEL_FLAT24)
526 fprintf (oFile, "\t.byte %s,(%s >> 8),(%s >> 16)", name, name, name);
530 fprintf (oFile, "\t.byte %s,(%s >> 8)", name, name);
534 /*-----------------------------------------------------------------*/
535 /* printPointerType - generates ival for pointer type */
536 /*-----------------------------------------------------------------*/
538 printPointerType (FILE * oFile, const char *name)
540 _printPointerType (oFile, name);
541 fprintf (oFile, "\n");
544 /*-----------------------------------------------------------------*/
545 /* printGPointerType - generates ival for generic pointer type */
546 /*-----------------------------------------------------------------*/
548 printGPointerType (FILE * oFile, const char *iname, const char *oname,
549 const unsigned int type)
551 _printPointerType (oFile, iname);
552 fprintf (oFile, ",#0x%02x\n", pointerTypeToGPByte (type, iname, oname));
555 /*-----------------------------------------------------------------*/
556 /* printIvalType - generates ival for int/char */
557 /*-----------------------------------------------------------------*/
559 printIvalType (symbol *sym, sym_link * type, initList * ilist, FILE * oFile)
563 /* if initList is deep */
564 if (ilist->type == INIT_DEEP)
565 ilist = ilist->init.deep;
567 if (!IS_AGGREGATE(sym->type) && getNelements(type, ilist)>1) {
568 werror (W_EXCESS_INITIALIZERS, "scalar", sym->name, sym->lineDef);
571 if (!(val = list2val (ilist))) {
572 // assuming a warning has been thrown
576 if (val->type != type) {
577 val = valCastLiteral(type, floatFromVal(val));
580 switch (getSize (type)) {
583 tfprintf (oFile, "\t!db !constbyte\n", 0);
585 tfprintf (oFile, "\t!dbs\n",
586 aopLiteral (val, 0));
590 if (port->use_dw_for_init)
591 tfprintf (oFile, "\t!dws\n", aopLiteralLong (val, 0, 2));
593 fprintf (oFile, "\t.byte %s,%s\n", aopLiteral (val, 0), aopLiteral (val, 1));
597 tfprintf (oFile, "\t!dw !constword\n", 0);
598 tfprintf (oFile, "\t!dw !constword\n", 0);
601 fprintf (oFile, "\t.byte %s,%s,%s,%s\n",
602 aopLiteral (val, 0), aopLiteral (val, 1),
603 aopLiteral (val, 2), aopLiteral (val, 3));
609 /*-----------------------------------------------------------------*/
610 /* printIvalBitFields - generate initializer for bitfields */
611 /*-----------------------------------------------------------------*/
612 void printIvalBitFields(symbol **sym, initList **ilist, FILE * oFile)
616 initList *lilist = *ilist ;
617 unsigned long ival = 0;
623 val = list2val(lilist);
625 if (SPEC_BLEN(lsym->etype) > 8) {
626 size += ((SPEC_BLEN (lsym->etype) / 8) +
627 (SPEC_BLEN (lsym->etype) % 8 ? 1 : 0));
630 size = ((SPEC_BLEN (lsym->etype) / 8) +
631 (SPEC_BLEN (lsym->etype) % 8 ? 1 : 0));
633 i = (unsigned long)floatFromVal(val);
634 i <<= SPEC_BSTR (lsym->etype);
636 if (! ( lsym->next &&
637 (IS_BITFIELD(lsym->next->type)) &&
638 (SPEC_BSTR(lsym->next->etype)))) break;
640 lilist = lilist->next;
644 tfprintf (oFile, "\t!db !constbyte\n",ival);
648 tfprintf (oFile, "\t!dw !constword\n",ival);
651 tfprintf (oFile, "\t!db !constword,!constword\n",
652 (ival >> 8) & 0xffff, (ival & 0xffff));
659 /*-----------------------------------------------------------------*/
660 /* printIvalStruct - generates initial value for structures */
661 /*-----------------------------------------------------------------*/
663 printIvalStruct (symbol * sym, sym_link * type,
664 initList * ilist, FILE * oFile)
669 sflds = SPEC_STRUCT (type)->fields;
670 if (ilist->type != INIT_DEEP) {
671 werror (E_INIT_STRUCT, sym->name);
675 iloop = ilist->init.deep;
677 for (; sflds; sflds = sflds->next, iloop = (iloop ? iloop->next : NULL)) {
678 if (IS_BITFIELD(sflds->type)) {
679 printIvalBitFields(&sflds,&iloop,oFile);
681 printIval (sym, sflds->type, iloop, oFile);
685 werror (W_EXCESS_INITIALIZERS, "struct", sym->name, sym->lineDef);
690 /*-----------------------------------------------------------------*/
691 /* printIvalChar - generates initital value for character array */
692 /*-----------------------------------------------------------------*/
694 printIvalChar (sym_link * type, initList * ilist, FILE * oFile, char *s)
702 val = list2val (ilist);
703 /* if the value is a character string */
704 if (IS_ARRAY (val->type) && IS_CHAR (val->etype))
706 if (!DCL_ELEM (type))
707 DCL_ELEM (type) = strlen (SPEC_CVAL (val->etype).v_char) + 1;
709 printChar (oFile, SPEC_CVAL (val->etype).v_char, DCL_ELEM (type));
711 if ((remain = (DCL_ELEM (type) - strlen (SPEC_CVAL (val->etype).v_char) - 1)) > 0)
713 tfprintf (oFile, "\t!db !constbyte\n", 0);
721 printChar (oFile, s, strlen (s) + 1);
725 /*-----------------------------------------------------------------*/
726 /* printIvalArray - generates code for array initialization */
727 /*-----------------------------------------------------------------*/
729 printIvalArray (symbol * sym, sym_link * type, initList * ilist,
733 int lcnt = 0, size = 0;
735 /* take care of the special case */
736 /* array of characters can be init */
738 if (IS_CHAR (type->next)) {
739 if (!IS_LITERAL(list2val(ilist)->etype)) {
740 werror (W_INIT_WRONG);
743 if (printIvalChar (type,
744 (ilist->type == INIT_DEEP ? ilist->init.deep : ilist),
745 oFile, SPEC_CVAL (sym->etype).v_char))
748 /* not the special case */
749 if (ilist->type != INIT_DEEP)
751 werror (E_INIT_STRUCT, sym->name);
755 iloop = ilist->init.deep;
756 lcnt = DCL_ELEM (type);
761 printIval (sym, type->next, iloop, oFile);
762 iloop = (iloop ? iloop->next : NULL);
765 /* if not array limits given & we */
766 /* are out of initialisers then */
767 if (!DCL_ELEM (type) && !iloop)
770 /* no of elements given and we */
771 /* have generated for all of them */
773 /* if initializers left */
775 werror (W_EXCESS_INITIALIZERS, "array", sym->name, sym->lineDef);
781 /* if we have not been given a size */
782 if (!DCL_ELEM (type))
783 DCL_ELEM (type) = size;
788 /*-----------------------------------------------------------------*/
789 /* printIvalFuncPtr - generate initial value for function pointers */
790 /*-----------------------------------------------------------------*/
792 printIvalFuncPtr (sym_link * type, initList * ilist, FILE * oFile)
797 val = list2val (ilist);
799 if (IS_LITERAL(val->etype)) {
800 if (compareType(type,val->etype)==0) {
801 werror (E_INCOMPAT_TYPES);
802 printFromToType (val->type, type);
804 printIvalCharPtr (NULL, type, val, oFile);
808 /* check the types */
809 if ((dLvl = compareType (val->type, type->next)) <= 0)
811 tfprintf (oFile, "\t!dw !constword\n", 0);
815 /* now generate the name */
818 if (port->use_dw_for_init)
820 tfprintf (oFile, "\t!dws\n", val->name);
824 printPointerType (oFile, val->name);
827 else if (port->use_dw_for_init)
829 tfprintf (oFile, "\t!dws\n", val->sym->rname);
833 printPointerType (oFile, val->sym->rname);
839 /*-----------------------------------------------------------------*/
840 /* printIvalCharPtr - generates initial values for character pointers */
841 /*-----------------------------------------------------------------*/
843 printIvalCharPtr (symbol * sym, sym_link * type, value * val, FILE * oFile)
847 /* PENDING: this is _very_ mcs51 specific, including a magic
849 It's also endin specific.
851 size = getSize (type);
853 if (val->name && strlen (val->name))
855 if (size == 1) /* This appears to be Z80 specific?? */
858 "\t!dbs\n", val->name);
860 else if (size == FPTRSIZE)
862 if (port->use_dw_for_init)
864 tfprintf (oFile, "\t!dws\n", val->name);
868 printPointerType (oFile, val->name);
871 else if (size == GPTRSIZE)
874 if (IS_PTR (val->type)) {
875 type = DCL_TYPE (val->type);
877 type = PTR_TYPE (SPEC_OCLS (val->etype));
879 if (val->sym && val->sym->isstrlit) {
880 // this is a literal string
883 printGPointerType (oFile, val->name, sym->name, type);
887 fprintf (stderr, "*** internal error: unknown size in "
888 "printIvalCharPtr.\n");
893 // these are literals assigned to pointers
897 tfprintf (oFile, "\t!dbs\n", aopLiteral (val, 0));
900 if (port->use_dw_for_init)
901 tfprintf (oFile, "\t!dws\n", aopLiteralLong (val, 0, size));
903 tfprintf (oFile, "\t.byte %s,%s\n",
904 aopLiteral (val, 0), aopLiteral (val, 1));
907 if (IS_GENPTR(type) && floatFromVal(val)!=0) {
908 // non-zero mcs51 generic pointer
909 werror (E_LITERAL_GENERIC);
911 fprintf (oFile, "\t.byte %s,%s,%s\n",
914 aopLiteral (val, 2));
917 if (IS_GENPTR(type) && floatFromVal(val)!=0) {
918 // non-zero ds390 generic pointer
919 werror (E_LITERAL_GENERIC);
921 fprintf (oFile, "\t.byte %s,%s,%s,%s\n",
925 aopLiteral (val, 3));
932 if (val->sym && val->sym->isstrlit && !isinSet(statsg->syms, val->sym)) {
933 addSet (&statsg->syms, val->sym);
939 /*-----------------------------------------------------------------*/
940 /* printIvalPtr - generates initial value for pointers */
941 /*-----------------------------------------------------------------*/
943 printIvalPtr (symbol * sym, sym_link * type, initList * ilist, FILE * oFile)
949 if (ilist->type == INIT_DEEP)
950 ilist = ilist->init.deep;
952 /* function pointer */
953 if (IS_FUNC (type->next))
955 printIvalFuncPtr (type, ilist, oFile);
959 if (!(val = initPointer (ilist, type)))
962 /* if character pointer */
963 if (IS_CHAR (type->next))
964 if (printIvalCharPtr (sym, type, val, oFile))
968 if (compareType (type, val->type) == 0)
969 werror (W_INIT_WRONG);
971 /* if val is literal */
972 if (IS_LITERAL (val->etype))
974 switch (getSize (type))
977 tfprintf (oFile, "\t!db !constbyte\n", (unsigned int) floatFromVal (val) & 0xff);
980 if (port->use_dw_for_init)
981 tfprintf (oFile, "\t!dws\n", aopLiteralLong (val, 0, 2));
983 tfprintf (oFile, "\t.byte %s,%s\n", aopLiteral (val, 0), aopLiteral (val, 1));
986 fprintf (oFile, "\t.byte %s,%s,#0x02\n",
987 aopLiteral (val, 0), aopLiteral (val, 1));
993 size = getSize (type);
995 if (size == 1) /* Z80 specific?? */
997 tfprintf (oFile, "\t!dbs\n", val->name);
999 else if (size == FPTRSIZE)
1001 if (port->use_dw_for_init) {
1002 tfprintf (oFile, "\t!dws\n", val->name);
1004 printPointerType (oFile, val->name);
1007 else if (size == GPTRSIZE)
1009 printGPointerType (oFile, val->name, sym->name,
1010 (IS_PTR (val->type) ? DCL_TYPE (val->type) :
1011 PTR_TYPE (SPEC_OCLS (val->etype))));
1016 /*-----------------------------------------------------------------*/
1017 /* printIval - generates code for initial value */
1018 /*-----------------------------------------------------------------*/
1020 printIval (symbol * sym, sym_link * type, initList * ilist, FILE * oFile)
1025 /* if structure then */
1026 if (IS_STRUCT (type))
1028 printIvalStruct (sym, type, ilist, oFile);
1032 /* if this is a pointer */
1035 printIvalPtr (sym, type, ilist, oFile);
1039 /* if this is an array */
1040 if (IS_ARRAY (type))
1042 printIvalArray (sym, type, ilist, oFile);
1046 /* if type is SPECIFIER */
1049 printIvalType (sym, type, ilist, oFile);
1054 /*-----------------------------------------------------------------*/
1055 /* emitStaticSeg - emitcode for the static segment */
1056 /*-----------------------------------------------------------------*/
1058 emitStaticSeg (memmap * map, FILE * out)
1062 /* fprintf(out, "\t.area\t%s\n", map->sname); */
1064 /* for all variables in this segment do */
1065 for (sym = setFirstItem (map->syms); sym;
1066 sym = setNextItem (map->syms))
1069 /* if it is "extern" then do nothing */
1070 if (IS_EXTERN (sym->etype))
1073 /* if it is not static add it to the public
1075 if (!IS_STATIC (sym->etype))
1077 addSetHead (&publics, sym);
1080 /* print extra debug info if required */
1081 if (options.debug) {
1082 cdbSymbol (sym, cdbFile, FALSE, FALSE);
1085 if (IS_STATIC (sym->etype))
1086 fprintf (out, "F%s$", moduleName); /* scope is file */
1088 fprintf (out, "G$"); /* scope is global */
1091 /* symbol is local */
1092 fprintf (out, "L%s$",
1093 (sym->localof ? sym->localof->name : "-null-"));
1094 fprintf (out, "%s$%d$%d", sym->name, sym->level, sym->block);
1097 /* if it has an absolute address */
1098 if (SPEC_ABSA (sym->etype))
1101 fprintf (out, " == 0x%04x\n", SPEC_ADDR (sym->etype));
1103 fprintf (out, "%s\t=\t0x%04x\n",
1105 SPEC_ADDR (sym->etype));
1110 fprintf (out, " == .\n");
1112 /* if it has an initial value */
1115 fprintf (out, "%s:\n", sym->rname);
1117 resolveIvalSym (sym->ival);
1118 printIval (sym, sym->type, sym->ival, out);
1122 /* allocate space */
1123 int size = getSize (sym->type);
1126 werror(E_UNKNOWN_SIZE,sym->name);
1128 fprintf (out, "%s:\n", sym->rname);
1129 /* special case for character strings */
1130 if (IS_ARRAY (sym->type) && IS_CHAR (sym->type->next) &&
1131 SPEC_CVAL (sym->etype).v_char)
1133 SPEC_CVAL (sym->etype).v_char,
1134 strlen (SPEC_CVAL (sym->etype).v_char) + 1);
1136 tfprintf (out, "\t!ds\n", (unsigned int) size & 0xffff);
1142 /*-----------------------------------------------------------------*/
1143 /* emitMaps - emits the code for the data portion the code */
1144 /*-----------------------------------------------------------------*/
1149 /* no special considerations for the following
1150 data, idata & bit & xdata */
1151 emitRegularMap (data, TRUE, TRUE);
1152 emitRegularMap (idata, TRUE, TRUE);
1153 emitRegularMap (bit, TRUE, FALSE);
1154 emitRegularMap (xdata, TRUE, TRUE);
1155 if (port->genXINIT) {
1156 emitRegularMap (xidata, TRUE, TRUE);
1158 emitRegularMap (sfr, FALSE, FALSE);
1159 emitRegularMap (sfrbit, FALSE, FALSE);
1160 emitRegularMap (home, TRUE, FALSE);
1161 emitRegularMap (code, TRUE, FALSE);
1163 emitStaticSeg (statsg, code->oFile);
1164 if (port->genXINIT) {
1165 tfprintf (code->oFile, "\t!area\n", xinit->sname);
1166 emitStaticSeg (xinit, code->oFile);
1171 /*-----------------------------------------------------------------*/
1172 /* flushStatics - flush all currently defined statics out to file */
1173 /* and delete. Temporary function */
1174 /*-----------------------------------------------------------------*/
1178 emitStaticSeg (statsg, codeOutFile);
1179 statsg->syms = NULL;
1182 /*-----------------------------------------------------------------*/
1183 /* createInterruptVect - creates the interrupt vector */
1184 /*-----------------------------------------------------------------*/
1186 createInterruptVect (FILE * vFile)
1189 mainf = newSymbol ("main", 0);
1192 /* only if the main function exists */
1193 if (!(mainf = findSymWithLevel (SymbolTab, mainf)))
1195 if (!options.cc_only && !noAssemble)
1200 /* if the main is only a prototype ie. no body then do nothing */
1201 if (!IFFUNC_HASBODY(mainf->type))
1203 /* if ! compile only then main function should be present */
1204 if (!options.cc_only && !noAssemble)
1209 tfprintf (vFile, "\t!areacode\n", CODE_NAME);
1210 fprintf (vFile, "__interrupt_vect:\n");
1213 if (!port->genIVT || !(port->genIVT (vFile, interrupts, maxInterrupts)))
1215 /* "generic" interrupt table header (if port doesn't specify one).
1216 * Look suspiciously like 8051 code to me...
1219 fprintf (vFile, "\tljmp\t__sdcc_gsinit_startup\n");
1222 /* now for the other interrupts */
1223 for (; i < maxInterrupts; i++)
1226 fprintf (vFile, "\tljmp\t%s\n\t.ds\t5\n", interrupts[i]->rname);
1228 fprintf (vFile, "\treti\n\t.ds\t7\n");
1235 ";--------------------------------------------------------\n"
1236 "; File Created by SDCC : FreeWare ANSI-C Compiler\n"};
1240 ";--------------------------------------------------------\n"};
1243 /*-----------------------------------------------------------------*/
1244 /* initialComments - puts in some initial comments */
1245 /*-----------------------------------------------------------------*/
1247 initialComments (FILE * afile)
1251 fprintf (afile, "%s", iComments1);
1252 fprintf (afile, "; Version %s %s\n", VersionString, asctime (localtime (&t)));
1253 fprintf (afile, "%s", iComments2);
1256 /*-----------------------------------------------------------------*/
1257 /* printPublics - generates .global for publics */
1258 /*-----------------------------------------------------------------*/
1260 printPublics (FILE * afile)
1264 fprintf (afile, "%s", iComments2);
1265 fprintf (afile, "; Public variables in this module\n");
1266 fprintf (afile, "%s", iComments2);
1268 for (sym = setFirstItem (publics); sym;
1269 sym = setNextItem (publics))
1270 tfprintf (afile, "\t!global\n", sym->rname);
1273 /*-----------------------------------------------------------------*/
1274 /* printExterns - generates .global for externs */
1275 /*-----------------------------------------------------------------*/
1277 printExterns (FILE * afile)
1281 fprintf (afile, "%s", iComments2);
1282 fprintf (afile, "; Externals used\n");
1283 fprintf (afile, "%s", iComments2);
1285 for (sym = setFirstItem (externs); sym;
1286 sym = setNextItem (externs))
1287 tfprintf (afile, "\t!extern\n", sym->rname);
1290 /*-----------------------------------------------------------------*/
1291 /* emitOverlay - will emit code for the overlay stuff */
1292 /*-----------------------------------------------------------------*/
1294 emitOverlay (FILE * afile)
1298 if (!elementsInSet (ovrSetSets))
1299 tfprintf (afile, "\t!area\n", port->mem.overlay_name);
1301 /* for each of the sets in the overlay segment do */
1302 for (ovrset = setFirstItem (ovrSetSets); ovrset;
1303 ovrset = setNextItem (ovrSetSets))
1308 if (elementsInSet (ovrset))
1310 /* output the area informtion */
1311 fprintf (afile, "\t.area\t%s\n", port->mem.overlay_name); /* MOF */
1314 for (sym = setFirstItem (ovrset); sym;
1315 sym = setNextItem (ovrset))
1317 /* if extern then it is in the publics table: do nothing */
1318 if (IS_EXTERN (sym->etype))
1321 /* if allocation required check is needed
1322 then check if the symbol really requires
1323 allocation only for local variables */
1324 if (!IS_AGGREGATE (sym->type) &&
1325 !(sym->_isparm && !IS_REGPARM (sym->etype))
1326 && !sym->allocreq && sym->level)
1329 /* if global variable & not static or extern
1330 and addPublics allowed then add it to the public set */
1331 if ((sym->_isparm && !IS_REGPARM (sym->etype))
1332 && !IS_STATIC (sym->etype))
1334 addSetHead (&publics, sym);
1337 /* if extern then do nothing or is a function
1339 if (IS_FUNC (sym->type))
1342 /* print extra debug info if required */
1345 cdbSymbol (sym, cdbFile, FALSE, FALSE);
1349 if (IS_STATIC (sym->etype))
1350 fprintf (afile, "F%s$", moduleName); /* scope is file */
1352 fprintf (afile, "G$"); /* scope is global */
1355 /* symbol is local */
1356 fprintf (afile, "L%s$",
1357 (sym->localof ? sym->localof->name : "-null-"));
1358 fprintf (afile, "%s$%d$%d", sym->name, sym->level, sym->block);
1361 /* if is has an absolute address then generate
1362 an equate for this no need to allocate space */
1363 if (SPEC_ABSA (sym->etype))
1367 fprintf (afile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
1369 fprintf (afile, "%s\t=\t0x%04x\n",
1371 SPEC_ADDR (sym->etype));
1374 int size = getSize(sym->type);
1377 werror(E_UNKNOWN_SIZE,sym->name);
1380 fprintf (afile, "==.\n");
1382 /* allocate space */
1383 tfprintf (afile, "!labeldef\n", sym->rname);
1384 tfprintf (afile, "\t!ds\n", (unsigned int) getSize (sym->type) & 0xffff);
1391 /*-----------------------------------------------------------------*/
1392 /* glue - the final glue that hold the whole thing together */
1393 /*-----------------------------------------------------------------*/
1399 FILE *ovrFile = tempfile ();
1401 addSetHead (&tmpfileSet, ovrFile);
1402 /* print the global struct definitions */
1404 cdbStructBlock (0, cdbFile);
1406 vFile = tempfile ();
1407 /* PENDING: this isnt the best place but it will do */
1408 if (port->general.glue_up_main)
1410 /* create the interrupt vector table */
1411 createInterruptVect (vFile);
1414 addSetHead (&tmpfileSet, vFile);
1416 /* emit code for the all the variables declared */
1418 /* do the overlay segments */
1419 emitOverlay (ovrFile);
1421 /* now put it all together into the assembler file */
1422 /* create the assembler file name */
1424 if (!options.c1mode)
1426 sprintf (scratchFileName, srcFileName);
1427 strcat (scratchFileName, port->assembler.file_ext);
1431 strcpy (scratchFileName, options.out_name);
1434 if (!(asmFile = fopen (scratchFileName, "w")))
1436 werror (E_FILE_OPEN_ERR, scratchFileName);
1440 /* initial comments */
1441 initialComments (asmFile);
1443 /* print module name */
1444 tfprintf (asmFile, "\t!module\n", moduleName);
1445 tfprintf (asmFile, "\t!fileprelude\n");
1447 /* Let the port generate any global directives, etc. */
1448 if (port->genAssemblerPreamble)
1450 port->genAssemblerPreamble (asmFile);
1453 /* print the global variables in this module */
1454 printPublics (asmFile);
1455 if (port->assembler.externGlobal)
1456 printExterns (asmFile);
1458 /* copy the sfr segment */
1459 fprintf (asmFile, "%s", iComments2);
1460 fprintf (asmFile, "; special function registers\n");
1461 fprintf (asmFile, "%s", iComments2);
1462 copyFile (asmFile, sfr->oFile);
1464 /* copy the sbit segment */
1465 fprintf (asmFile, "%s", iComments2);
1466 fprintf (asmFile, "; special function bits \n");
1467 fprintf (asmFile, "%s", iComments2);
1468 copyFile (asmFile, sfrbit->oFile);
1470 /* copy the data segment */
1471 fprintf (asmFile, "%s", iComments2);
1472 fprintf (asmFile, "; internal ram data\n");
1473 fprintf (asmFile, "%s", iComments2);
1474 copyFile (asmFile, data->oFile);
1477 /* create the overlay segments */
1479 fprintf (asmFile, "%s", iComments2);
1480 fprintf (asmFile, "; overlayable items in internal ram \n");
1481 fprintf (asmFile, "%s", iComments2);
1482 copyFile (asmFile, ovrFile);
1485 /* create the stack segment MOF */
1486 if (mainf && IFFUNC_HASBODY(mainf->type))
1488 fprintf (asmFile, "%s", iComments2);
1489 fprintf (asmFile, "; Stack segment in internal ram \n");
1490 fprintf (asmFile, "%s", iComments2);
1491 fprintf (asmFile, "\t.area\tSSEG\t(DATA)\n"
1492 "__start__stack:\n\t.ds\t1\n\n");
1495 /* create the idata segment */
1497 fprintf (asmFile, "%s", iComments2);
1498 fprintf (asmFile, "; indirectly addressable internal ram data\n");
1499 fprintf (asmFile, "%s", iComments2);
1500 copyFile (asmFile, idata->oFile);
1503 /* copy the bit segment */
1504 fprintf (asmFile, "%s", iComments2);
1505 fprintf (asmFile, "; bit data\n");
1506 fprintf (asmFile, "%s", iComments2);
1507 copyFile (asmFile, bit->oFile);
1509 /* if external stack then reserve space of it */
1510 if (mainf && IFFUNC_HASBODY(mainf->type) && options.useXstack)
1512 fprintf (asmFile, "%s", iComments2);
1513 fprintf (asmFile, "; external stack \n");
1514 fprintf (asmFile, "%s", iComments2);
1515 fprintf (asmFile, "\t.area XSEG (XDATA)\n"); /* MOF */
1516 fprintf (asmFile, "\t.ds 256\n");
1520 /* copy xtern ram data */
1521 fprintf (asmFile, "%s", iComments2);
1522 fprintf (asmFile, "; external ram data\n");
1523 fprintf (asmFile, "%s", iComments2);
1524 copyFile (asmFile, xdata->oFile);
1526 /* copy xternal initialized ram data */
1527 fprintf (asmFile, "%s", iComments2);
1528 fprintf (asmFile, "; external initialized ram data\n");
1529 fprintf (asmFile, "%s", iComments2);
1530 copyFile (asmFile, xidata->oFile);
1532 /* copy the interrupt vector table */
1533 if (mainf && IFFUNC_HASBODY(mainf->type))
1535 fprintf (asmFile, "%s", iComments2);
1536 fprintf (asmFile, "; interrupt vector \n");
1537 fprintf (asmFile, "%s", iComments2);
1538 copyFile (asmFile, vFile);
1541 /* copy global & static initialisations */
1542 fprintf (asmFile, "%s", iComments2);
1543 fprintf (asmFile, "; global & static initialisations\n");
1544 fprintf (asmFile, "%s", iComments2);
1546 /* Everywhere we generate a reference to the static_name area,
1547 * (which is currently only here), we immediately follow it with a
1548 * definition of the post_static_name area. This guarantees that
1549 * the post_static_name area will immediately follow the static_name
1552 tfprintf (asmFile, "\t!area\n", port->mem.static_name); /* MOF */
1553 tfprintf (asmFile, "\t!area\n", port->mem.post_static_name);
1554 tfprintf (asmFile, "\t!area\n", port->mem.static_name);
1556 if (mainf && IFFUNC_HASBODY(mainf->type))
1558 fprintf (asmFile, "__sdcc_gsinit_startup:\n");
1559 /* if external stack is specified then the
1560 higher order byte of the xdatalocation is
1561 going into P2 and the lower order going into
1563 if (options.useXstack)
1565 fprintf (asmFile, "\tmov\tP2,#0x%02x\n",
1566 (((unsigned int) options.xdata_loc) >> 8) & 0xff);
1567 fprintf (asmFile, "\tmov\t_spx,#0x%02x\n",
1568 (unsigned int) options.xdata_loc & 0xff);
1571 /* initialise the stack pointer */
1572 /* if the user specified a value then use it */
1573 if (options.stack_loc)
1574 fprintf (asmFile, "\tmov\tsp,#%d\n", options.stack_loc & 0xff);
1576 /* no: we have to compute it */
1577 if (!options.stackOnData && maxRegBank <= 3)
1578 fprintf (asmFile, "\tmov\tsp,#%d\n", ((maxRegBank + 1) * 8) - 1);
1580 fprintf (asmFile, "\tmov\tsp,#__start__stack\n"); /* MOF */
1582 fprintf (asmFile, "\tlcall\t__sdcc_external_startup\n");
1583 fprintf (asmFile, "\tmov\ta,dpl\n");
1584 fprintf (asmFile, "\tjz\t__sdcc_init_data\n");
1585 fprintf (asmFile, "\tljmp\t__sdcc_program_startup\n");
1586 fprintf (asmFile, "__sdcc_init_data:\n");
1588 // if the port can copy the XINIT segment to XISEG
1589 if (port->genXINIT) {
1590 port->genXINIT(asmFile);
1594 copyFile (asmFile, statsg->oFile);
1596 if (port->general.glue_up_main && mainf && IFFUNC_HASBODY(mainf->type))
1598 /* This code is generated in the post-static area.
1599 * This area is guaranteed to follow the static area
1600 * by the ugly shucking and jiving about 20 lines ago.
1602 tfprintf (asmFile, "\t!area\n", port->mem.post_static_name);
1603 fprintf (asmFile, "\tljmp\t__sdcc_program_startup\n");
1609 "%s", iComments2, iComments2);
1610 tfprintf (asmFile, "\t!areahome\n", HOME_NAME);
1611 copyFile (asmFile, home->oFile);
1613 /* copy over code */
1614 fprintf (asmFile, "%s", iComments2);
1615 fprintf (asmFile, "; code\n");
1616 fprintf (asmFile, "%s", iComments2);
1617 tfprintf (asmFile, "\t!areacode\n", CODE_NAME);
1618 if (mainf && IFFUNC_HASBODY(mainf->type))
1621 /* entry point @ start of CSEG */
1622 fprintf (asmFile, "__sdcc_program_startup:\n");
1624 /* put in the call to main */
1625 fprintf (asmFile, "\tlcall\t_main\n");
1626 if (options.mainreturn)
1629 fprintf (asmFile, ";\treturn from main ; will return to caller\n");
1630 fprintf (asmFile, "\tret\n");
1636 fprintf (asmFile, ";\treturn from main will lock up\n");
1637 fprintf (asmFile, "\tsjmp .\n");
1640 copyFile (asmFile, code->oFile);
1642 if (port->genAssemblerEnd) {
1643 port->genAssemblerEnd(asmFile);
1646 applyToSet (tmpfileSet, closeTmpFiles);
1647 applyToSet (tmpfileNameSet, rmTmpFiles);
1650 #if defined (__MINGW32__) || defined (__CYGWIN__) || defined (_MSC_VER)
1654 applyToSet (tmpfileSet, closeTmpFiles);
1655 applyToSet (tmpfileNameSet, rmTmpFiles);
1659 /** Creates a temporary file name a'la tmpnam which avoids the bugs
1660 in cygwin wrt c:\tmp.
1661 Scans, in order: TMP, TEMP, TMPDIR, else uses tmpfile().
1666 #if !defined(_MSC_VER)
1667 const char *tmpdir = NULL;
1669 tmpdir = getenv ("TMP");
1670 else if (getenv ("TEMP"))
1671 tmpdir = getenv ("TEMP");
1672 else if (getenv ("TMPDIR"))
1673 tmpdir = getenv ("TMPDIR");
1676 char *name = tempnam (tmpdir, "sdcc");
1683 return tmpnam (NULL);
1686 /** Creates a temporary file a'la tmpfile which avoids the bugs
1687 in cygwin wrt c:\tmp.
1688 Scans, in order: TMP, TEMP, TMPDIR, else uses tmpfile().
1693 #if !defined(_MSC_VER)
1694 const char *tmpdir = NULL;
1696 tmpdir = getenv ("TMP");
1697 else if (getenv ("TEMP"))
1698 tmpdir = getenv ("TEMP");
1699 else if (getenv ("TMPDIR"))
1700 tmpdir = getenv ("TMPDIR");
1703 char *name = Safe_strdup( tempnam (tmpdir, "sdcc"));
1706 FILE *fp = fopen (name, "w+b");
1709 addSetHead (&tmpfileNameSet, name);