/*-----------------------------------------------------------------*/
static void
pic14emitOverlay (struct dbuf_s * aBuf)
{
set *ovrset;
/* if (!elementsInSet (ovrSetSets))*/
/* the hack below, fixes translates for devices which
* only have udata_shr memory */
dbuf_printf (aBuf, "%s\t%s\n",
(elementsInSet(ovrSetSets)?"":";"),
port->mem.overlay_name);
/* for each of the sets in the overlay segment do */
for (ovrset = setFirstItem (ovrSetSets); ovrset;
ovrset = setNextItem (ovrSetSets))
{
symbol *sym;
if (elementsInSet (ovrset))
{
/* this dummy area is used to fool the assembler
otherwise the assembler will append each of these
declarations into one chunk and will not overlay
sad but true */
/* I don't think this applies to us. We are using gpasm. CRF */
dbuf_printf (aBuf, ";\t.area _DUMMY\n");
/* output the area informtion */
dbuf_printf (aBuf, ";\t.area\t%s\n", port->mem.overlay_name); /* MOF */
}
for (sym = setFirstItem (ovrset); sym;
sym = setNextItem (ovrset))
{
/* if extern then do nothing */
if (IS_EXTERN (sym->etype))
continue;
/* if allocation required check is needed
then check if the symbol really requires
allocation only for local variables */
if (!IS_AGGREGATE (sym->type) &&
!(sym->_isparm && !IS_REGPARM (sym->etype))
&& !sym->allocreq && sym->level)
continue;
/* if global variable & not static or extern
and addPublics allowed then add it to the public set */
if ((sym->_isparm && !IS_REGPARM (sym->etype))
&& !IS_STATIC (sym->etype))
addSetHead (&publics, sym);
/* if extern then do nothing or is a function
then do nothing */
if (IS_FUNC (sym->type))
continue;
/* print extra debug info if required */
if (options.debug || sym->level == 0)
{
if (!sym->level)
{ /* global */
if (IS_STATIC (sym->etype))
dbuf_printf (aBuf, "F%s_", moduleName); /* scope is file */
else
dbuf_printf (aBuf, "G_"); /* scope is global */
}
else
/* symbol is local */
dbuf_printf (aBuf, "L%s_",
(sym->localof ? sym->localof->name : "-null-"));
dbuf_printf (aBuf, "%s_%d_%d", sym->name, sym->level, sym->block);
}
/* if is has an absolute address then generate
an equate for this no need to allocate space */
if (SPEC_ABSA (sym->etype))
{
if (options.debug || sym->level == 0)
dbuf_printf (aBuf, " == 0x%04x\n", SPEC_ADDR (sym->etype));
dbuf_printf (aBuf, "%s\t=\t0x%04x\n",
sym->rname,
SPEC_ADDR (sym->etype));
}
else
{
if (options.debug || sym->level == 0)
dbuf_printf (aBuf, "==.\n");
/* allocate space */
dbuf_printf (aBuf, "%s:\n", sym->rname);
dbuf_printf (aBuf, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff);
}
}
}
}
/*-----------------------------------------------------------------*/
int
allocVariables (symbol * symChain)
{
symbol *sym;
symbol *csym;
int stack = 0;
int saveLevel = 0;
/* go thru the symbol chain */
for (sym = symChain; sym; sym = sym->next)
{
/* if this is a typedef then add it */
/* to the typedef table */
if (IS_TYPEDEF (sym->etype))
{
/* check if the typedef already exists */
csym = findSym (TypedefTab, NULL, sym->name);
if (csym && csym->level == sym->level)
werror (E_DUPLICATE_TYPEDEF, sym->name);
SPEC_EXTR (sym->etype) = 0;
addSym (TypedefTab, sym, sym->name, sym->level, sym->block, 0);
continue; /* go to the next one */
}
/* make sure it already exists */
csym = findSymWithLevel (SymbolTab, sym);
if (!csym || (csym && csym->level != sym->level))
csym = sym;
/* check the declaration */
checkDecl (csym, 0);
/* if this is a function or a pointer to a */
/* function then do args processing */
if (funcInChain (csym->type))
{
processFuncArgs (csym);
}
/* if this is an extern variable then change */
/* the level to zero temporarily */
if (IS_EXTERN (csym->etype) || IS_FUNC (csym->type))
{
saveLevel = csym->level;
csym->level = 0;
}
/* if this is a literal then it is an enumerated */
/* type so need not allocate it space for it */
if (IS_LITERAL (sym->etype))
continue;
/* generate the actual declaration */
if (csym->level)
{
allocLocal (csym);
if (csym->onStack)
stack += getSize (csym->type);
}
else
allocGlobal (csym);
/* restore the level */
if (IS_EXTERN (csym->etype) || IS_FUNC (csym->type))
csym->level = saveLevel;
}
return stack;
}
/*
* Emit a set of symbols.
* type - 0: have symbol tell whether it is local, extern or global
* 1: assume all symbols in set to be global
* 2: assume all symbols in set to be extern
*/
static void
emitSymbolSet(set *s, int type)
{
symbol *sym;
initList *list;
unsigned sectionNr = 0;
for (sym = setFirstItem(s); sym; sym = setNextItem(s)) {
#if 0
fprintf (stdout, "; name %s, rname %s, level %d, block %d, key %d, local %d, ival %p, static %d, cdef %d, used %d\n",
sym->name, sym->rname, sym->level, sym->block, sym->key, sym->islocal, sym->ival, IS_STATIC(sym->etype), sym->cdef, sym->used);
#endif
if (sym->etype && SPEC_ABSA(sym->etype)
&& IS_CONFIG_ADDRESS(SPEC_ADDR(sym->etype))
&& sym->ival)
{
// handle config words
pic14_assignConfigWordValue(SPEC_ADDR(sym->etype),
(int)list2int(sym->ival));
pic14_stringInSet(sym->rname, &emitted, 1);
continue;
}
if (sym->isstrlit) {
// special case: string literals
emitInitVal(ivalBuf, sym, sym->type, NULL);
continue;
}
if (type != 0 || sym->cdef
|| (!IS_STATIC(sym->etype)
&& IS_GLOBAL(sym)))
{
// bail out for ___fsadd and friends
if (sym->cdef && !sym->used) continue;
/* export or import non-static globals */
if (!pic14_stringInSet(sym->rname, &emitted, 0)) {
if (type == 2 || IS_EXTERN(sym->etype) || sym->cdef)
{
/* do not add to emitted set, it might occur again! */
//if (!sym->used) continue;
// declare symbol
emitIfNew (extBuf, &emitted, "\textern\t%s\n", sym->rname);
} else {
// declare symbol
emitIfNew (gloBuf, &emitted, "\tglobal\t%s\n", sym->rname);
if (!sym->ival && !IS_FUNC(sym->type)) {
// also define symbol
if (IS_ABSOLUTE(sym->etype)) {
// absolute location?
//dbuf_printf (gloDefBuf, "UD_%s_%u\tudata\t0x%04X\n", moduleName, sectionNr++, SPEC_ADDR(sym->etype));
// deferred to pic14_constructAbsMap
} else {
dbuf_printf (gloDefBuf, "UD_%s_%u\tudata\n", moduleName, sectionNr++);
dbuf_printf (gloDefBuf, "%s\tres\t%d\n\n", sym->rname, getSize(sym->type));
}
} // if
} // if
pic14_stringInSet(sym->rname, &emitted, 1);
} // if
} // if
list = sym->ival;
//if (list) showInitList(list, 0);
if (list) {
resolveIvalSym( list, sym->type );
emitInitVal(ivalBuf, sym, sym->type, sym->ival);
dbuf_printf (ivalBuf, "\n");
}
} // for sym
}
