X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2FSDCCglue.c;h=1e66c123fd479d78954dff94ff4e555f446e4fb1;hb=ef203f08aa15a9f5e4f2ad806374a6a1667dcff1;hp=4523afe01933164ec9c5fcf3af3476e7d4c8c3f3;hpb=8d4ee14580ea23a6c1e5c2a975c49eec0fd3c206;p=fw%2Fsdcc diff --git a/src/SDCCglue.c b/src/SDCCglue.c index 4523afe0..1e66c123 100644 --- a/src/SDCCglue.c +++ b/src/SDCCglue.c @@ -170,16 +170,17 @@ emitRegularMap (memmap * map, bool addPublics, bool arFlag) else tfprintf (map->oFile, "\t!area\n", map->sname); } - - /* print the area name */ + for (sym = setFirstItem (map->syms); sym; sym = setNextItem (map->syms)) { + symbol *newSym=NULL; + /* if extern then add it into the extern list */ if (IS_EXTERN (sym->etype)) { - addSetHead (&externs, sym); + addSetHead (&externs, sym); continue; } @@ -228,6 +229,66 @@ emitRegularMap (memmap * map, bool addPublics, bool arFlag) fprintf (map->oFile, "%s$%d$%d", sym->name, sym->level, sym->block); } + /* if it has an initial value then do it only if + it is a global variable */ + if (sym->ival && sym->level == 0) { + if (SPEC_OCLS(sym->etype)==xidata) { + // create a new "XINIT (CODE)" symbol, that will be emitted later + newSym=copySymbol (sym); + SPEC_OCLS(newSym->etype)=xinit; + sprintf (newSym->name, "_xinit_%s", sym->name); + sprintf (newSym->rname,"_xinit_%s", sym->rname); + SPEC_CONST(newSym->etype)=1; + //SPEC_STAT(newSym->etype)=1; + addSym (SymbolTab, newSym, newSym->name, 0, 0, 1); + + // add it to the "XINIT (CODE)" segment + addSet(&xinit->syms, newSym); + + //fprintf (stderr, "moved %s from xdata to xidata\n", sym->rname); + + } else { + if (IS_AGGREGATE (sym->type)) { + ival = initAggregates (sym, sym->ival, NULL); + } else { + if (getNelements(sym->type, sym->ival)>1) { + werror (W_EXCESS_INITIALIZERS, "scalar", + sym->name, sym->lineDef); + } + ival = newNode ('=', newAst_VALUE (symbolVal (sym)), + decorateType (resolveSymbols (list2expr (sym->ival)))); + } + codeOutFile = statsg->oFile; + + if (ival) { + // set ival's lineno to where the symbol was defined + lineno=ival->lineno=sym->lineDef; + + // check if this is a constant expression + if (constExprTree(ival->right)) { + allocInfo = 0; + eBBlockFromiCode (iCodeFromAst (ival)); + allocInfo = 1; + } else { + werror (E_CONST_EXPECTED, "found expression"); + } + } + } + + /* if the ival is a symbol assigned to an aggregate, + (bug #458099 -> #462479) + we don't need it anymore, so delete it from its segment */ + if (sym->ival->type == INIT_NODE && + IS_AST_SYM_VALUE(sym->ival->init.node) && + IS_AGGREGATE (sym->type) ) { + symIval=AST_SYMBOL(sym->ival->init.node); + segment = SPEC_OCLS (symIval->etype); + deleteSetItem (&segment->syms, symIval); + } + + sym->ival = NULL; + } + /* if is has an absolute address then generate an equate for this no need to allocate space */ if (SPEC_ABSA (sym->etype)) @@ -239,51 +300,26 @@ emitRegularMap (memmap * map, bool addPublics, bool arFlag) sym->rname, SPEC_ADDR (sym->etype)); } - else - { - /* allocate space */ - if (options.debug) { - fprintf (map->oFile, "==.\n"); - } - if (IS_STATIC (sym->etype)) - tfprintf (map->oFile, "!slabeldef\n", sym->rname); - else - tfprintf (map->oFile, "!labeldef\n", sym->rname); - tfprintf (map->oFile, "\t!ds\n", - (unsigned int) getSize (sym->type) & 0xffff); - } - - /* if it has an initial value then do it only if - it is a global variable */ - if (sym->ival && sym->level == 0) - { - if (IS_AGGREGATE (sym->type)) { - ival = initAggregates (sym, sym->ival, NULL); + else { + if (newSym) { + // this has been moved to another segment } else { - ival = newNode ('=', newAst_VALUE (symbolVal (sym)), - decorateType (resolveSymbols (list2expr (sym->ival)))); - } - codeOutFile = statsg->oFile; - allocInfo = 0; - - // set ival's lineno to where the symbol was defined - if (ival) ival->lineno=sym->lineDef; - eBBlockFromiCode (iCodeFromAst (ival)); - allocInfo = 1; - - /* if the ival is a symbol assigned to an aggregate, - (bug #458099 -> #462479) - we don't need it anymore, so delete it from its segment */ - if (sym->ival->type == INIT_NODE && - IS_AST_SYM_VALUE(sym->ival->init.node) && - IS_AGGREGATE (sym->type) ) { - symIval=AST_SYMBOL(sym->ival->init.node); - segment = SPEC_OCLS (symIval->etype); - deleteSetItem (&segment->syms, symIval); + int size = getSize (sym->type); + if (size==0) { + werror(E_UNKNOWN_SIZE,sym->name); + } + /* allocate space */ + if (options.debug) { + fprintf (map->oFile, "==.\n"); + } + if (IS_STATIC (sym->etype)) + tfprintf (map->oFile, "!slabeldef\n", sym->rname); + else + tfprintf (map->oFile, "!labeldef\n", sym->rname); + tfprintf (map->oFile, "\t!ds\n", + (unsigned int) size & 0xffff); } - - sym->ival = NULL; - } + } } } @@ -527,11 +563,19 @@ printIvalType (symbol *sym, sym_link * type, initList * ilist, FILE * oFile) if (ilist->type == INIT_DEEP) ilist = ilist->init.deep; - if (sym && ilist->next) { + if (!IS_AGGREGATE(sym->type) && getNelements(type, ilist)>1) { werror (W_EXCESS_INITIALIZERS, "scalar", sym->name, sym->lineDef); } - val = list2val (ilist); + if (!(val = list2val (ilist))) { + // assuming a warning has been thrown + val=constVal("0"); + } + + if (val->type != type) { + val = valCastLiteral(type, floatFromVal(val)); + } + switch (getSize (type)) { case 1: if (!val) @@ -633,7 +677,7 @@ printIvalStruct (symbol * sym, sym_link * type, if (IS_BITFIELD(sflds->type)) { printIvalBitFields(&sflds,&iloop,oFile); } else { - printIval (NULL, sflds->type, iloop, oFile); + printIval (sym, sflds->type, iloop, oFile); } } if (iloop) { @@ -709,7 +753,7 @@ printIvalArray (symbol * sym, sym_link * type, initList * ilist, for (;;) { size++; - printIval (NULL, type->next, iloop, oFile); + printIval (sym, type->next, iloop, oFile); iloop = (iloop ? iloop->next : NULL); @@ -831,7 +875,7 @@ printIvalCharPtr (symbol * sym, sym_link * type, value * val, FILE * oFile) } else { - /* What is this case? Are these pointers? */ + // these are literals assigned to pointers switch (size) { case 1: @@ -845,9 +889,25 @@ printIvalCharPtr (symbol * sym, sym_link * type, value * val, FILE * oFile) aopLiteral (val, 0), aopLiteral (val, 1)); break; case 3: - /* PENDING: 0x02 or 0x%02x, CDATA? */ - fprintf (oFile, "\t.byte %s,%s,#0x02\n", - aopLiteral (val, 0), aopLiteral (val, 1)); + // mcs51 generic pointer + if (floatFromVal(val)!=0) { + werror (E_LITERAL_GENERIC); + } + fprintf (oFile, "\t.byte %s,%s,%s\n", + aopLiteral (val, 0), + aopLiteral (val, 1), + aopLiteral (val, 2)); + break; + case 4: + // ds390 generic pointer + if (floatFromVal(val)!=0) { + werror (E_LITERAL_GENERIC); + } + fprintf (oFile, "\t.byte %s,%s,%s,%s\n", + aopLiteral (val, 0), + aopLiteral (val, 1), + aopLiteral (val, 2), + aopLiteral (val, 3)); break; default: assert (0); @@ -984,9 +1044,7 @@ emitStaticSeg (memmap * map, FILE * out) { symbol *sym; - /* fprintf(map->oFile,"\t.area\t%s\n",map->sname); */ - if (!out) - out = code->oFile; + /* fprintf(out, "\t.area\t%s\n", map->sname); */ /* for all variables in this segment do */ for (sym = setFirstItem (map->syms); sym; @@ -1000,7 +1058,9 @@ emitStaticSeg (memmap * map, FILE * out) /* if it is not static add it to the public table */ if (!IS_STATIC (sym->etype)) - addSetHead (&publics, sym); + { + addSetHead (&publics, sym); + } /* print extra debug info if required */ if (options.debug) { @@ -1043,18 +1103,22 @@ emitStaticSeg (memmap * map, FILE * out) printIval (sym, sym->type, sym->ival, out); noAlloc--; } - else - { + else { /* allocate space */ + int size = getSize (sym->type); + + if (size==0) { + werror(E_UNKNOWN_SIZE,sym->name); + } fprintf (out, "%s:\n", sym->rname); /* special case for character strings */ if (IS_ARRAY (sym->type) && IS_CHAR (sym->type->next) && SPEC_CVAL (sym->etype).v_char) - printChar (out, - SPEC_CVAL (sym->etype).v_char, - strlen (SPEC_CVAL (sym->etype).v_char) + 1); + printChar (out, + SPEC_CVAL (sym->etype).v_char, + strlen (SPEC_CVAL (sym->etype).v_char) + 1); else - tfprintf (out, "\t!ds\n", (unsigned int) getSize (sym->type) & 0xffff); + tfprintf (out, "\t!ds\n", (unsigned int) size & 0xffff); } } } @@ -1073,12 +1137,19 @@ emitMaps () emitRegularMap (idata, TRUE, TRUE); emitRegularMap (bit, TRUE, FALSE); emitRegularMap (xdata, TRUE, TRUE); + if (port->genXINIT) { + emitRegularMap (xidata, TRUE, TRUE); + } emitRegularMap (sfr, FALSE, FALSE); emitRegularMap (sfrbit, FALSE, FALSE); emitRegularMap (home, TRUE, FALSE); emitRegularMap (code, TRUE, FALSE); emitStaticSeg (statsg, code->oFile); + if (port->genXINIT) { + fprintf (code->oFile, "\t.area\t%s\n", xinit->sname); + emitStaticSeg (xinit, code->oFile); + } inInitMode--; } @@ -1127,7 +1198,6 @@ createInterruptVect (FILE * vFile) if (!port->genIVT || !(port->genIVT (vFile, interrupts, maxInterrupts))) { /* "generic" interrupt table header (if port doesn't specify one). - * Look suspiciously like 8051 code to me... */ @@ -1199,7 +1269,7 @@ printExterns (FILE * afile) for (sym = setFirstItem (externs); sym; sym = setNextItem (externs)) - tfprintf (afile, "\t!global\n", sym->rname); + tfprintf (afile, "\t!extern\n", sym->rname); } /*-----------------------------------------------------------------*/ @@ -1222,11 +1292,15 @@ emitOverlay (FILE * afile) if (elementsInSet (ovrset)) { +#if 0 /* 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 */ fprintf (afile, "\t.area _DUMMY\n"); +#else + /* not anymore since asmain.c:1.13 */ +#endif /* output the area informtion */ fprintf (afile, "\t.area\t%s\n", port->mem.overlay_name); /* MOF */ } @@ -1251,7 +1325,9 @@ emitOverlay (FILE * afile) and addPublics allowed then add it to the public set */ if ((sym->_isparm && !IS_REGPARM (sym->etype)) && !IS_STATIC (sym->etype)) - addSetHead (&publics, sym); + { + addSetHead (&publics, sym); + } /* if extern then do nothing or is a function then do nothing */ @@ -1289,16 +1365,20 @@ emitOverlay (FILE * afile) sym->rname, SPEC_ADDR (sym->etype)); } - else - { + else { + int size = getSize(sym->type); + + if (size==0) { + werror(E_UNKNOWN_SIZE,sym->name); + } if (options.debug) - fprintf (afile, "==.\n"); + fprintf (afile, "==.\n"); /* allocate space */ tfprintf (afile, "!labeldef\n", sym->rname); tfprintf (afile, "\t!ds\n", (unsigned int) getSize (sym->type) & 0xffff); - } - + } + } } } @@ -1434,6 +1514,12 @@ glue () fprintf (asmFile, "%s", iComments2); copyFile (asmFile, xdata->oFile); + /* copy xternal initialized ram data */ + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; external initialized ram data\n"); + fprintf (asmFile, "%s", iComments2); + copyFile (asmFile, xidata->oFile); + /* copy the interrupt vector table */ if (mainf && IFFUNC_HASBODY(mainf->type)) { @@ -1476,7 +1562,7 @@ glue () /* initialise the stack pointer */ /* if the user specified a value then use it */ if (options.stack_loc) - fprintf (asmFile, "\tmov\tsp,#%d\n", options.stack_loc); + fprintf (asmFile, "\tmov\tsp,#%d\n", options.stack_loc & 0xff); else /* no: we have to compute it */ if (!options.stackOnData && maxRegBank <= 3) @@ -1490,6 +1576,11 @@ glue () fprintf (asmFile, "\tljmp\t__sdcc_program_startup\n"); fprintf (asmFile, "__sdcc_init_data:\n"); + // if the port can copy the XINIT segment to XISEG + if (port->genXINIT) { + port->genXINIT(asmFile); + } + } copyFile (asmFile, statsg->oFile);