Exemple #1
0
static void ParseSegments (void)
/* Parse a SEGMENTS section */
{
    static const IdentTok Attributes [] = {
        {   "ALIGN",            CFGTOK_ALIGN            },
        {   "ALIGN_LOAD",       CFGTOK_ALIGN_LOAD       },
        {   "DEFINE",           CFGTOK_DEFINE           },
       	{   "LOAD",    	        CFGTOK_LOAD             },
	{   "OFFSET",  	        CFGTOK_OFFSET           },
        {   "OPTIONAL",         CFGTOK_OPTIONAL         },
	{   "RUN",     	        CFGTOK_RUN              },
	{   "START",   	        CFGTOK_START            },
        {   "TYPE",             CFGTOK_TYPE             },
    };
    static const IdentTok Types [] = {
       	{   "RO",      	        CFGTOK_RO               },
       	{   "RW",      	        CFGTOK_RW               },
       	{   "BSS",     	        CFGTOK_BSS              },
	{   "ZP",      	        CFGTOK_ZP	        },
    };

    unsigned Count;
    long     Val;

    /* The MEMORY section must preceed the SEGMENTS section */
    if ((SectionsEncountered & SE_MEMORY) == 0) {
        CfgError ("MEMORY must precede SEGMENTS");
    }

    while (CfgTok == CFGTOK_IDENT) {

	SegDesc* S;

	/* Create a new entry on the heap */
       	S = NewSegDesc (GetStringId (CfgSVal));

	/* Skip the name and the following colon */
	CfgNextTok ();
	CfgConsumeColon ();

       	/* Read the attributes */
	while (CfgTok == CFGTOK_IDENT) {

	    /* Map the identifier to a token */
	    cfgtok_t AttrTok;
	    CfgSpecialToken (Attributes, ENTRY_COUNT (Attributes), "Attribute");
	    AttrTok = CfgTok;

	    /* An optional assignment follows */
	    CfgNextTok ();
	    CfgOptionalAssign ();

	    /* Check which attribute was given */
	    switch (AttrTok) {

	        case CFGTOK_ALIGN:
	    	    FlagAttr (&S->Attr, SA_ALIGN, "ALIGN");
	    	    Val = CfgCheckedIntExpr (1, 0x10000);
	    	    S->Align = BitFind (Val);
	    	    if ((0x01L << S->Align) != Val) {
	    	     	CfgError ("Alignment must be a power of 2");
	    	    }
	    	    S->Flags |= SF_ALIGN;
	    	    break;

                case CFGTOK_ALIGN_LOAD:
	    	    FlagAttr (&S->Attr, SA_ALIGN_LOAD, "ALIGN_LOAD");
	    	    Val = CfgCheckedIntExpr (1, 0x10000);
       	       	    S->AlignLoad = BitFind (Val);
	    	    if ((0x01L << S->AlignLoad) != Val) {
	    	     	CfgError ("Alignment must be a power of 2");
	    	    }
	    	    S->Flags |= SF_ALIGN_LOAD;
	    	    break;

	        case CFGTOK_DEFINE:
 	    	    FlagAttr (&S->Attr, SA_DEFINE, "DEFINE");
	    	    /* Map the token to a boolean */
	    	    CfgBoolToken ();
	    	    if (CfgTok == CFGTOK_TRUE) {
	    	     	S->Flags |= SF_DEFINE;
	    	    }
                    CfgNextTok ();
	    	    break;

	    	case CFGTOK_LOAD:
	      	    FlagAttr (&S->Attr, SA_LOAD, "LOAD");
	    	    S->Load = CfgGetMemory (GetStringId (CfgSVal));
                    CfgNextTok ();
	    	    break;

	        case CFGTOK_OFFSET:
	    	    FlagAttr (&S->Attr, SA_OFFSET, "OFFSET");
	    	    S->Addr   = CfgCheckedIntExpr (1, 0x1000000);
	    	    S->Flags |= SF_OFFSET;
	    	    break;

	        case CFGTOK_OPTIONAL:
	    	    FlagAttr (&S->Attr, SA_OPTIONAL, "OPTIONAL");
		    CfgBoolToken ();
		    if (CfgTok == CFGTOK_TRUE) {
	  	    	S->Flags |= SF_OPTIONAL;
		    }
                    CfgNextTok ();
	    	    break;

	    	case CFGTOK_RUN:
      	    	    FlagAttr (&S->Attr, SA_RUN, "RUN");
 	    	    S->Run = CfgGetMemory (GetStringId (CfgSVal));
                    CfgNextTok ();
	    	    break;

	        case CFGTOK_START:
	    	    FlagAttr (&S->Attr, SA_START, "START");
	    	    S->Addr   = CfgCheckedIntExpr (1, 0x1000000);
	    	    S->Flags |= SF_START;
	    	    break;

	    	case CFGTOK_TYPE:
 	    	    FlagAttr (&S->Attr, SA_TYPE, "TYPE");
       	    	    CfgSpecialToken (Types, ENTRY_COUNT (Types), "Type");
	    	    switch (CfgTok) {
       	       	       	case CFGTOK_RO:	   S->Flags |= SF_RO;               break;
	    		case CFGTOK_RW:	   /* Default */		    break;
	    	     	case CFGTOK_BSS:   S->Flags |= SF_BSS;              break;
	    	     	case CFGTOK_ZP:	   S->Flags |= (SF_BSS | SF_ZP);    break;
	    	     	default:      	   Internal ("Unexpected token: %d", CfgTok);
	    	    }
                    CfgNextTok ();
	    	    break;

	    	default:
       	       	    FAIL ("Unexpected attribute token");

	    }

	    /* Skip an optional comma */
	    CfgOptionalComma ();
	}

	/* Check for mandatory parameters */
	AttrCheck (S->Attr, SA_LOAD, "LOAD");

 	/* Set defaults for stuff not given */
	if ((S->Attr & SA_RUN) == 0) {
	    S->Attr |= SA_RUN;
	    S->Run = S->Load;
	}

	/* If the segment is marked as BSS style, and if the segment exists
         * in any of the object file, check that there's no initialized data
         * in the segment.
	 */
	if ((S->Flags & SF_BSS) != 0 && S->Seg != 0 && !IsBSSType (S->Seg)) {
	    Warning ("%s(%u): Segment with type `bss' contains initialized data",
	    	     CfgGetName (), CfgErrorLine);
	}

        /* An attribute of ALIGN_LOAD doesn't make sense if there are no
         * separate run and load memory areas.
         */
        if ((S->Flags & SF_ALIGN_LOAD) != 0 && (S->Load == S->Run)) {
       	    Warning ("%s(%u): ALIGN_LOAD attribute specified, but no separate "
                     "LOAD and RUN memory areas assigned",
                     CfgGetName (), CfgErrorLine);
            /* Remove the flag */
            S->Flags &= ~SF_ALIGN_LOAD;
        }

        /* If the segment is marked as BSS style, it may not have separate
         * load and run memory areas, because it's is never written to disk.
         */
        if ((S->Flags & SF_BSS) != 0 && (S->Load != S->Run)) {
       	    Warning ("%s(%u): Segment with type `bss' has both LOAD and RUN "
                     "memory areas assigned", CfgGetName (), CfgErrorLine);
        }

      	/* Don't allow read/write data to be put into a readonly area */
      	if ((S->Flags & SF_RO) == 0) {
       	    if (S->Run->Flags & MF_RO) {
      	    	CfgError ("Cannot put r/w segment `%s' in r/o memory area `%s'",
      	    	     	  GetString (S->Name), GetString (S->Run->Name));
      	    }
      	}

      	/* Only one of ALIGN, START and OFFSET may be used */
       	Count = ((S->Flags & SF_ALIGN)  != 0) +
      	       	((S->Flags & SF_OFFSET) != 0) +
      	    	((S->Flags & SF_START)  != 0);
      	if (Count > 1) {
       	    CfgError ("Only one of ALIGN, START, OFFSET may be used");
      	}

      	/* If this segment does exist in any of the object files, insert the
      	 * descriptor into the list of segment descriptors. Otherwise print a
         * warning and discard it, because the segment pointer in the
         * descriptor is invalid.
      	 */
      	if (S->Seg != 0) {
	    /* Insert the descriptor into the list of all descriptors */
	    SegDescInsert (S);
      	    /* Insert the segment into the memory area list */
      	    MemoryInsert (S->Run, S);
      	    if (S->Load != S->Run) {
      	    	/* We have separate RUN and LOAD areas */
      	    	MemoryInsert (S->Load, S);
      	    }
      	} else {
            /* Print a warning if the segment is not optional */
            if ((S->Flags & SF_OPTIONAL) == 0) {
                CfgWarning ("Segment `%s' does not exist", GetString (S->Name));
            }
      	    /* Discard the descriptor */
      	    FreeSegDesc (S);
      	}

	/* Skip the semicolon */
	CfgConsumeSemi ();
    }

    /* Remember we had this section */
    SectionsEncountered |= SE_SEGMENTS;
}
Exemple #2
0
static void ParseO65 (void)
/* Parse the o65 format section */
{
    static const IdentTok Attributes [] = {
       	{   "EXPORT",   CFGTOK_EXPORT   	},
	{   "IMPORT",	CFGTOK_IMPORT		},
        {   "TYPE",     CFGTOK_TYPE     	},
       	{   "OS",      	CFGTOK_OS       	},
       	{   "ID",      	CFGTOK_ID       	},
       	{   "VERSION",  CFGTOK_VERSION          },
    };
    static const IdentTok Types [] = {
       	{   "SMALL",   	CFGTOK_SMALL    	},
       	{   "LARGE",   	CFGTOK_LARGE    	},
    };
    static const IdentTok OperatingSystems [] = {
       	{   "LUNIX",   	CFGTOK_LUNIX     	},
       	{   "OSA65",   	CFGTOK_OSA65    	},
        {   "CC65",     CFGTOK_CC65             },
        {   "OPENCBM",  CFGTOK_OPENCBM          },
    };

    /* Bitmask to remember the attributes we got already */
    enum {
       	atNone		= 0x0000,
	atOS            = 0x0001,
        atOSVersion     = 0x0002,
	atType	       	= 0x0004,
	atImport        = 0x0008,
	atExport    	= 0x0010,
        atID            = 0x0020,
        atVersion       = 0x0040
    };
    unsigned AttrFlags = atNone;

    /* Remember the attributes read */
    unsigned CfgSValId;
    unsigned OS = 0;            /* Initialize to keep gcc happy */
    unsigned Version = 0;

    /* Read the attributes */
    while (CfgTok == CFGTOK_IDENT) {

	/* Map the identifier to a token */
	cfgtok_t AttrTok;
       	CfgSpecialToken (Attributes, ENTRY_COUNT (Attributes), "Attribute");
	AttrTok = CfgTok;

	/* An optional assignment follows */
	CfgNextTok ();
	CfgOptionalAssign ();

	/* Check which attribute was given */
	switch (AttrTok) {

	    case CFGTOK_EXPORT:
                /* Remember we had this token (maybe more than once) */
                AttrFlags |= atExport;
	      	/* We expect an identifier */
		CfgAssureIdent ();
                /* Convert the string into a string index */
                CfgSValId = GetStringId (CfgSVal);
	        /* Check if the export symbol is also defined as an import. */
	       	if (O65GetImport (O65FmtDesc, CfgSValId) != 0) {
		    CfgError ("Exported symbol `%s' cannot be an import", CfgSVal);
		}
      		/* Check if we have this symbol defined already. The entry
      	     	 * routine will check this also, but we get a more verbose
      		 * error message when checking it here.
      		 */
      	 	if (O65GetExport (O65FmtDesc, CfgSValId) != 0) {
      	  	    CfgError ("Duplicate exported symbol: `%s'", CfgSVal);
      	 	}
		/* Insert the symbol into the table */
	  	O65SetExport (O65FmtDesc, CfgSValId);
                /* Eat the identifier token */
                CfgNextTok ();
	    	break;

	    case CFGTOK_IMPORT:
                /* Remember we had this token (maybe more than once) */
                AttrFlags |= atImport;
	      	/* We expect an identifier */
		CfgAssureIdent ();
                /* Convert the string into a string index */
                CfgSValId = GetStringId (CfgSVal);
	        /* Check if the imported symbol is also defined as an export. */
	       	if (O65GetExport (O65FmtDesc, CfgSValId) != 0) {
		    CfgError ("Imported symbol `%s' cannot be an export", CfgSVal);
		}
      	    	/* Check if we have this symbol defined already. The entry
      	    	 * routine will check this also, but we get a more verbose
      	    	 * error message when checking it here.
      	    	 */
      	    	if (O65GetImport (O65FmtDesc, CfgSValId) != 0) {
      	    	    CfgError ("Duplicate imported symbol: `%s'", CfgSVal);
      	    	}
	    	/* Insert the symbol into the table */
	    	O65SetImport (O65FmtDesc, CfgSValId);
                /* Eat the identifier token */
                CfgNextTok ();
	    	break;

	    case CFGTOK_TYPE:
		/* Cannot have this attribute twice */
		FlagAttr (&AttrFlags, atType, "TYPE");
		/* Get the type of the executable */
		CfgSpecialToken (Types, ENTRY_COUNT (Types), "Type");
		switch (CfgTok) {

		    case CFGTOK_SMALL:
		        O65SetSmallModel (O65FmtDesc);
		     	break;

		    case CFGTOK_LARGE:
		    	O65SetLargeModel (O65FmtDesc);
	    	     	break;

	    	    default:
	    	     	CfgError ("Unexpected type token");
	    	}
                /* Eat the attribute token */
                CfgNextTok ();
	     	break;

	    case CFGTOK_OS:
	     	/* Cannot use this attribute twice */
	     	FlagAttr (&AttrFlags, atOS, "OS");
	     	/* Get the operating system. It may be specified as name or
                 * as a number in the range 1..255.
                 */
		if (CfgTok == CFGTOK_INTCON) {
		    CfgRangeCheck (O65OS_MIN, O65OS_MAX);
		    OS = (unsigned) CfgIVal;
		} else {
                    CfgSpecialToken (OperatingSystems, ENTRY_COUNT (OperatingSystems), "OS type");
                    switch (CfgTok) {
                        case CFGTOK_LUNIX:    OS = O65OS_LUNIX;     break;
                        case CFGTOK_OSA65:    OS = O65OS_OSA65;     break;
                        case CFGTOK_CC65:     OS = O65OS_CC65;      break;
                        case CFGTOK_OPENCBM:  OS = O65OS_OPENCBM;   break;
                        default:              CfgError ("Unexpected OS token");
                    }
                }
                CfgNextTok ();
	     	break;

            case CFGTOK_ID:
                /* Cannot have this attribute twice */
                FlagAttr (&AttrFlags, atID, "ID");
                /* We're expecting a number in the 0..$FFFF range*/
                ModuleId = (unsigned) CfgCheckedIntExpr (0, 0xFFFF);
                break;

            case CFGTOK_VERSION:
                /* Cannot have this attribute twice */
                FlagAttr (&AttrFlags, atVersion, "VERSION");
                /* We're expecting a number in byte range */
                Version = (unsigned) CfgCheckedIntExpr (0, 0xFF);
                break;

	    default:
		FAIL ("Unexpected attribute token");

	}

	/* Skip an optional comma */
	CfgOptionalComma ();
    }

    /* Check if we have all mandatory attributes */
    AttrCheck (AttrFlags, atOS, "OS");

    /* Check for attributes that may not be combined */
    if (OS == O65OS_CC65) {
        if ((AttrFlags & (atImport | atExport)) != 0 && ModuleId < 0x8000) {
            CfgError ("OS type CC65 may not have imports or exports for ids < $8000");
        }
    } else {
        if (AttrFlags & atID) {
            CfgError ("Operating system does not support the ID attribute");
        }
    }

    /* Set the O65 operating system to use */
    O65SetOS (O65FmtDesc, OS, Version, ModuleId);
}
Exemple #3
0
static void ParseFiles (void)
/* Parse a FILES section */
{
    static const IdentTok Attributes [] = {
       	{   "FORMAT",  	CFGTOK_FORMAT   },
    };
    static const IdentTok Formats [] = {
       	{   "O65",     	CFGTOK_O65  	     },
       	{   "BIN",     	CFGTOK_BIN      },
       	{   "BINARY",   CFGTOK_BIN      },
    };


    /* The MEMORY section must preceed the FILES section */
    if ((SectionsEncountered & SE_MEMORY) == 0) {
        CfgError ("MEMORY must precede FILES");
    }

    /* Parse all files */
    while (CfgTok != CFGTOK_RCURLY) {

	File* F;

	/* We expect a string value here */
	CfgAssureStr ();

	/* Search for the file, it must exist */
       	F = FindFile (GetStringId (CfgSVal));
	if (F == 0) {
       	    CfgError ("File `%s' not found in MEMORY section", CfgSVal);
	}

	/* Skip the token and the following colon */
	CfgNextTok ();
	CfgConsumeColon ();

	/* Read the attributes */
	while (CfgTok == CFGTOK_IDENT) {

	    /* Map the identifier to a token */
	    cfgtok_t AttrTok;
	    CfgSpecialToken (Attributes, ENTRY_COUNT (Attributes), "Attribute");
	    AttrTok = CfgTok;

	    /* An optional assignment follows */
	    CfgNextTok ();
	    CfgOptionalAssign ();

	    /* Check which attribute was given */
	    switch (AttrTok) {

	    	case CFGTOK_FORMAT:
	    	    if (F->Format != BINFMT_DEFAULT) {
	    	  	/* We've set the format already! */
		  	Error ("Cannot set a file format twice");
		    }
		    /* Read the format token */
		    CfgSpecialToken (Formats, ENTRY_COUNT (Formats), "Format");
		    switch (CfgTok) {

			case CFGTOK_BIN:
			    F->Format = BINFMT_BINARY;
			    break;

			case CFGTOK_O65:
			    F->Format = BINFMT_O65;
			    break;

			default:
			    Error ("Unexpected format token");
		    }
      		    break;

	     	default:
	       	    FAIL ("Unexpected attribute token");

	    }

	    /* Skip the attribute value and an optional comma */
	    CfgNextTok ();
	    CfgOptionalComma ();
	}

	/* Skip the semicolon */
	CfgConsumeSemi ();

    }

    /* Remember we had this section */
    SectionsEncountered |= SE_FILES;
}
Exemple #4
0
static void ParseSymbols (void)
/* Parse a symbols section */
{
    static const IdentTok Attributes[] = {
       	{   "VALUE",   	CFGTOK_VALUE    },
        {   "WEAK",     CFGTOK_WEAK     },
    };

    while (CfgTok == CFGTOK_IDENT) {

	long Val = 0L;
        int  Weak = 0;
        Export* E;

	/* Remember the name */
	unsigned Name = GetStringId (CfgSVal);
	CfgNextTok ();

        /* Support both, old and new syntax here. New syntax is a colon
         * followed by an attribute list, old syntax is an optional equal
         * sign plus a value.
         */
        if (CfgTok != CFGTOK_COLON) {

            /* Old syntax */

            /* Allow an optional assignment */
            CfgOptionalAssign ();

            /* Make sure the next token is an integer expression, read and
             * skip it.
             */
            Val = CfgIntExpr ();

        } else {

            /* Bitmask to remember the attributes we got already */
            enum {
                atNone	     	= 0x0000,
                atValue         = 0x0001,
                atWeak          = 0x0002
            };
            unsigned AttrFlags = atNone;


            /* New syntax - skip the colon */
            CfgNextTok ();

            /* Parse the attributes */
            while (1) {

                /* Map the identifier to a token */
                cfgtok_t AttrTok;
                CfgSpecialToken (Attributes, ENTRY_COUNT (Attributes), "Attribute");
                AttrTok = CfgTok;

                /* Skip the attribute name */
                CfgNextTok ();

                /* An optional assignment follows */
                CfgOptionalAssign ();

                /* Check which attribute was given */
                switch (AttrTok) {

                    case CFGTOK_VALUE:
                        /* Don't allow this twice */
                        FlagAttr (&AttrFlags, atValue, "VALUE");
                        /* We expect a numeric expression */
                        Val = CfgIntExpr ();
                        break;

                    case CFGTOK_WEAK:
                        /* Don't allow this twice */
                        FlagAttr (&AttrFlags, atWeak, "WEAK");
                        CfgBoolToken ();
                        Weak = (CfgTok == CFGTOK_TRUE);
                        CfgNextTok ();
                        break;

                    default:
                        FAIL ("Unexpected attribute token");

                }

                /* Semicolon ends the decl, otherwise accept an optional comma */
                if (CfgTok == CFGTOK_SEMI) {
                    break;
                } else if (CfgTok == CFGTOK_COMMA) {
                    CfgNextTok ();
                }
            }

            /* Check if we have all mandatory attributes */
            AttrCheck (AttrFlags, atValue, "VALUE");

            /* Weak is optional, the default are non weak symbols */
            if ((AttrFlags & atWeak) == 0) {
                Weak = 0;
            }

        }

        /* Check if the symbol is already defined */
        if ((E = FindExport (Name)) != 0 && !IsUnresolvedExport (E)) {
            /* If the symbol is not marked as weak, this is an error.
             * Otherwise ignore the symbol from the config.
             */
            if (!Weak) {
                CfgError ("Symbol `%s' is already defined", GetString (Name));
            }
        } else {
            /* The symbol is undefined, generate an export */
            CreateConstExport (Name, Val);
        }

    	/* Skip the semicolon */
    	CfgConsumeSemi ();
    }

    /* Remember we had this section */
    SectionsEncountered |= SE_SYMBOLS;
}
Exemple #5
0
static void ParseConDes (void)
/* Parse the CONDES feature */
{
    static const IdentTok Attributes [] = {
       	{   "SEGMENT",	   	CFGTOK_SEGMENT		},
	{   "LABEL",  	   	CFGTOK_LABEL  		},
	{   "COUNT",	   	CFGTOK_COUNT		},
	{   "TYPE",	   	CFGTOK_TYPE   		},
	{   "ORDER",	   	CFGTOK_ORDER		},
    };

    static const IdentTok Types [] = {
       	{   "CONSTRUCTOR",	CFGTOK_CONSTRUCTOR	},
	{   "DESTRUCTOR",      	CFGTOK_DESTRUCTOR	},
        {   "INTERRUPTOR",      CFGTOK_INTERRUPTOR      },
    };

    static const IdentTok Orders [] = {
	{   "DECREASING",      	CFGTOK_DECREASING	},
       	{   "INCREASING",      	CFGTOK_INCREASING	},
    };

    /* Attribute values. */
    unsigned SegName = INVALID_STRING_ID;
    unsigned Label   = INVALID_STRING_ID;
    unsigned Count   = INVALID_STRING_ID;
    /* Initialize to avoid gcc warnings: */
    int Type = -1;
    ConDesOrder Order = cdIncreasing;

    /* Bitmask to remember the attributes we got already */
    enum {
	atNone	   	= 0x0000,
	atSegName  	= 0x0001,
	atLabel	   	= 0x0002,
	atCount	   	= 0x0004,
	atType	   	= 0x0008,
	atOrder	   	= 0x0010
    };
    unsigned AttrFlags = atNone;

    /* Parse the attributes */
    while (1) {

	/* Map the identifier to a token */
	cfgtok_t AttrTok;
       	CfgSpecialToken (Attributes, ENTRY_COUNT (Attributes), "Attribute");
	AttrTok = CfgTok;

	/* An optional assignment follows */
	CfgNextTok ();
	CfgOptionalAssign ();

	/* Check which attribute was given */
	switch (AttrTok) {

	    case CFGTOK_SEGMENT:
	  	/* Don't allow this twice */
		FlagAttr (&AttrFlags, atSegName, "SEGMENT");
	      	/* We expect an identifier */
		CfgAssureIdent ();
		/* Remember the value for later */
		SegName = GetStringId (CfgSVal);
	    	break;

	    case CFGTOK_LABEL:
	       	/* Don't allow this twice */
		FlagAttr (&AttrFlags, atLabel, "LABEL");
	      	/* We expect an identifier */
		CfgAssureIdent ();
		/* Remember the value for later */
		Label = GetStringId (CfgSVal);
		break;

	    case CFGTOK_COUNT:
	       	/* Don't allow this twice */
		FlagAttr (&AttrFlags, atCount, "COUNT");
	      	/* We expect an identifier */
		CfgAssureIdent ();
		/* Remember the value for later */
		Count = GetStringId (CfgSVal);
		break;

	    case CFGTOK_TYPE:
	  	/* Don't allow this twice */
		FlagAttr (&AttrFlags, atType, "TYPE");
		/* The type may be given as id or numerical */
		if (CfgTok == CFGTOK_INTCON) {
		    CfgRangeCheck (CD_TYPE_MIN, CD_TYPE_MAX);
		    Type = (int) CfgIVal;
		} else {
		    CfgSpecialToken (Types, ENTRY_COUNT (Types), "Type");
		    switch (CfgTok) {
		     	case CFGTOK_CONSTRUCTOR: Type = CD_TYPE_CON;	break;
		     	case CFGTOK_DESTRUCTOR:	 Type = CD_TYPE_DES;	break;
                        case CFGTOK_INTERRUPTOR: Type = CD_TYPE_INT;    break;
	     	     	default: FAIL ("Unexpected type token");
		    }
		}
		break;

	    case CFGTOK_ORDER:
	       	/* Don't allow this twice */
		FlagAttr (&AttrFlags, atOrder, "ORDER");
		CfgSpecialToken (Orders, ENTRY_COUNT (Orders), "Order");
		switch (CfgTok) {
		    case CFGTOK_DECREASING: Order = cdDecreasing;	break;
		    case CFGTOK_INCREASING: Order = cdIncreasing;	break;
		    default: FAIL ("Unexpected order token");
		}
		break;

	    default:
		FAIL ("Unexpected attribute token");

	}

       	/* Skip the attribute value */
	CfgNextTok ();

	/* Semicolon ends the ConDes decl, otherwise accept an optional comma */
	if (CfgTok == CFGTOK_SEMI) {
	    break;
	} else if (CfgTok == CFGTOK_COMMA) {
	    CfgNextTok ();
	}
    }

    /* Check if we have all mandatory attributes */
    AttrCheck (AttrFlags, atSegName, "SEGMENT");
    AttrCheck (AttrFlags, atLabel, "LABEL");
    AttrCheck (AttrFlags, atType, "TYPE");

    /* Check if the condes has already attributes defined */
    if (ConDesHasSegName(Type) || ConDesHasLabel(Type)) {
	CfgError ("CONDES attributes for type %d are already defined", Type);
    }

    /* Define the attributes */
    ConDesSetSegName (Type, SegName);
    ConDesSetLabel (Type, Label);
    if (AttrFlags & atCount) {
	ConDesSetCountSym (Type, Count);
    }
    if (AttrFlags & atOrder) {
	ConDesSetOrder (Type, Order);
    }
}
Exemple #6
0
void CfgNextTok (void)
/* Read the next token from the input stream */
{
Again:
    /* Skip whitespace */
    while (isspace (C)) {
        NextChar ();
    }

    /* Remember the current position */
    CfgErrorPos = InputPos;

    /* Identifier? */
    if (C == '_' || IsAlpha (C)) {

        /* Read the identifier */
        SB_Clear (&CfgSVal);
        while (C == '_' || IsAlNum (C)) {
            SB_AppendChar (&CfgSVal, C);
            NextChar ();
        }
        SB_Terminate (&CfgSVal);
        CfgTok = CFGTOK_IDENT;
        return;
    }

    /* Hex number? */
    if (C == '$') {
        NextChar ();
        if (!isxdigit (C)) {
            CfgError (&CfgErrorPos, "Hex digit expected");
        }
        CfgIVal = 0;
        while (isxdigit (C)) {
            CfgIVal = CfgIVal * 16 + DigitVal (C);
            NextChar ();
        }
        CfgTok = CFGTOK_INTCON;
        return;
    }

    /* Decimal number? */
    if (isdigit (C)) {
        CfgIVal = 0;
        while (isdigit (C)) {
            CfgIVal = CfgIVal * 10 + DigitVal (C);
            NextChar ();
        }
        CfgTok = CFGTOK_INTCON;
        return;
    }

    /* Other characters */
    switch (C) {

        case '-':
            NextChar ();
            CfgTok = CFGTOK_MINUS;
            break;

        case '+':
            NextChar ();
            CfgTok = CFGTOK_PLUS;
            break;

        case '*':
            NextChar ();
            CfgTok = CFGTOK_MUL;
            break;

        case '/':
            NextChar ();
            CfgTok = CFGTOK_DIV;
            break;

        case '(':
            NextChar ();
            CfgTok = CFGTOK_LPAR;
            break;

        case ')':
            NextChar ();
            CfgTok = CFGTOK_RPAR;
            break;

        case '{':
            NextChar ();
            CfgTok = CFGTOK_LCURLY;
            break;

        case '}':
            NextChar ();
            CfgTok = CFGTOK_RCURLY;
            break;

        case ';':
            NextChar ();
            CfgTok = CFGTOK_SEMI;
            break;

        case '.':
            NextChar ();
            CfgTok = CFGTOK_DOT;
            break;

        case ',':
            NextChar ();
            CfgTok = CFGTOK_COMMA;
            break;

        case '=':
            NextChar ();
            CfgTok = CFGTOK_EQ;
            break;

        case ':':
            NextChar ();
            CfgTok = CFGTOK_COLON;
            break;

        case '\"':
            StrVal ();
            break;

        case '#':
            /* Comment */
            while (C != '\n' && C != EOF) {
                NextChar ();
            }
            if (C != EOF) {
                goto Again;
            }
            CfgTok = CFGTOK_EOF;
            break;

        case '%':
            NextChar ();
            switch (C) {

                case 'O':
                    NextChar ();
                    if (OutputName) {
                        SB_CopyStr (&CfgSVal, OutputName);
                    } else {
                        SB_Clear (&CfgSVal);
                    }
                    SB_Terminate (&CfgSVal);
                    OutputNameUsed = 1;
                    CfgTok = CFGTOK_STRCON;
                    break;

                case 'S':
                    NextChar ();
                    CfgIVal = StartAddr;
                    CfgTok = CFGTOK_INTCON;
                    break;

                default:
                    CfgError (&CfgErrorPos, "Invalid format specification");
            }
            break;

        case EOF:
            CfgTok = CFGTOK_EOF;
            break;

        default:
            CfgError (&CfgErrorPos, "Invalid character `%c'", C);

    }
}
Exemple #7
0
static void StrVal (void)
/* Parse a string value and expand escape sequences */
{
    /* Skip the starting double quotes */
    NextChar ();

    /* Read input chars */
    SB_Clear (&CfgSVal);
    while (C != '\"') {
        switch (C) {

            case EOF:
            case '\n':
                CfgError (&CfgErrorPos, "Unterminated string");
                break;

            case '%':
                NextChar ();
                switch (C) {

                    case EOF:
                    case '\n':
                    case '\"':
                        CfgError (&CfgErrorPos, "Unterminated '%%' escape sequence");
                        break;

                    case '%':
                        SB_AppendChar (&CfgSVal, '%');
                        NextChar ();
                        break;

                    case 'O':
                        /* Replace by output file */
                        if (OutputName) {
                            SB_AppendStr (&CfgSVal, OutputName);
                        }
                        OutputNameUsed = 1;
                        NextChar ();
                        break;

                    default:
                        CfgWarning (&CfgErrorPos,
                                    "Unkown escape sequence `%%%c'", C);
                        SB_AppendChar (&CfgSVal, '%');
                        SB_AppendChar (&CfgSVal, C);
                        NextChar ();
                        break;
                }
                break;

            default:
                SB_AppendChar (&CfgSVal, C);
                NextChar ();
        }
    }

    /* Skip the terminating double quotes */
    NextChar ();

    /* Terminate the string */
    SB_Terminate (&CfgSVal);

    /* We've read a string value */
    CfgTok = CFGTOK_STRCON;
}