mirror of
https://github.com/byteworksinc/ORCA-C.git
synced 2024-11-05 02:07:22 +00:00
4ad7a65de6
This means that floating-point constants can now have the range and precision of the extended type (aka long double), and floating-point constant expressions evaluated within the compiler also have that same range and precision (matching expressions evaluated at run time). This new behavior is intended to match the behavior specified in the C99 and later standards for FLT_EVAL_METHOD 2. This fixes the previous problem where long double constants and constant expressions of type long double were not represented and evaluated with the full range and precision that they should be. It also gives extra range and precision to constants and constant expressions of type double or float. This may have pluses and minuses, but at any rate it is consistent with the existing behavior for expressions evaluated at run time, and with one of the possible models of floating point evaluation specified in the C standards.
2005 lines
52 KiB
ObjectPascal
2005 lines
52 KiB
ObjectPascal
{$optimize 7}
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{---------------------------------------------------------------}
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{ }
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{ Header }
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{ }
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{ Handles saving and reading precompiled headers. }
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{ }
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{---------------------------------------------------------------}
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unit Header;
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interface
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{$LibPrefix '0/obj/'}
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uses CCommon, MM, Scanner, Symbol, CGI;
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{$segment 'SCANNER'}
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const
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symFileVersion = 11; {version number of .sym file format}
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var
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inhibitHeader: boolean; {should .sym includes be blocked?}
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procedure EndInclude (chPtr: ptr);
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{ Saves symbols created by the include file }
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{ }
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{ Parameters: }
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{ chPtr - chPtr when the file returned }
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{ }
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{ Notes: }
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{ 1. Call this subroutine right after processing an }
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{ include file. }
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{ 2. Declared externally in Symbol.pas }
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procedure FlagPragmas (pragma: pragmas);
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{ record the effects of a pragma }
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{ }
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{ parameters: }
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{ pragma - pragma to record }
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{ }
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{ Notes: }
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{ 1. Defined as extern in Scanner.pas }
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{ 2. For the purposes of this unit, the segment statement is }
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{ treated as a pragma. }
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procedure InitHeader (var fName: gsosOutString);
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{ look for a header file, reading it if it exists }
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{ }
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{ parameters: }
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{ fName - source file name (var for efficiency) }
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procedure TermHeader;
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{ Stop processing the header file }
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{ }
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{ Note: This is called when the first code-generating }
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{ subroutine is found, and again when the compile ends. It }
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{ closes any open symbol file, and should take no action if }
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{ called twice. }
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procedure StartInclude (name: gsosOutStringPtr);
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{ Marks the start of an include file }
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{ }
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{ Notes: }
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{ 1. Call this subroutine right after opening an include }
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{ file. }
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{ 2. Defined externally in Scanner.pas }
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{---------------------------------------------------------------}
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implementation
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const
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symFiletype = $5E; {symbol file type}
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symAuxtype = $008008;
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{file buffer}
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{-----------}
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bufSize = 1024; {size of output buffer}
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type
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closeOSDCB = record
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pcount: integer;
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refNum: integer;
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end;
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createOSDCB = record
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pcount: integer;
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pathName: gsosInStringPtr;
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access: integer;
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fileType: integer;
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auxType: longint;
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storageType: integer;
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dataEOF: longint;
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resourceEOF: longint;
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end;
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destroyOSDCB = record
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pcount: integer;
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pathName: gsosInStringPtr;
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end;
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getFileInfoOSDCB = record
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pcount: integer;
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pathName: gsosInStringPtr;
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access: integer;
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fileType: integer;
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auxType: longint;
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storageType: integer;
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createDateTime: timeField;
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modDateTime: timeField;
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optionList: optionListPtr;
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dataEOF: longint;
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blocksUsed: longint;
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resourceEOF: longint;
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resourceBlocks: longint;
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end;
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getMarkOSDCB = record
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pcount: integer;
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refNum: integer;
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displacement: longint;
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end;
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openOSDCB = record
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pcount: integer;
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refNum: integer;
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pathName: gsosInStringPtr;
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requestAccess: integer;
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resourceNumber: integer;
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access: integer;
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fileType: integer;
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auxType: longint;
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storageType: integer;
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createDateTime: timeField;
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modDateTime: timeField;
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optionList: optionListPtr;
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dataEOF: longint;
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blocksUsed: longint;
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resourceEOF: longint;
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resourceBlocks: longint;
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end;
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readWriteOSDCB = record
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pcount: integer;
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refNum: integer;
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dataBuffer: ptr;
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requestCount: longint;
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transferCount: longint;
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cachePriority: integer;
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end;
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setMarkOSDCB = record
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pcount: integer;
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refNum: integer;
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base: integer;
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displacement: longint;
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end;
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{file buffer}
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{-----------}
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bufferType = array[0..bufSize] of byte; {output buffer}
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var
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codeStarted: boolean; {has code generation started?}
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includeLevel: 0..maxint; {nested include level}
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includeMark: boolean; {has the mark field been written?}
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savePragmas: set of pragmas; {pragmas to record}
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saveSource: boolean; {save source streams?}
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symChPtr: ptr; {chPtr at start of current source sequence}
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symEndPtr: ptr; {points to first byte past end of file}
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symMark: longint; {start of current block}
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symName: gsosOutString; {symbol file name}
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symStartPtr: ptr; {first byte in the symbol file}
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symPtr: ptr; {next byte in the symbol file}
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symRefnum: integer; {symName reference number}
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tokenMark: longint; {start of last token list}
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{file buffer}
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{-----------}
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buffer: ^bufferType; {output buffer}
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bufPtr: ^byte; {next available byte}
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bufLen: 0..bufSize; {bytes left in buffer}
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{---------------------------------------------------------------}
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procedure BlockMove (sourcPtr, destPtr: ptr; count: longint); tool ($02, $2B);
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procedure CloseGS (var parms: closeOSDCB); prodos ($2014);
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procedure CreateGS (var parms: createOSDCB); prodos ($2001);
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procedure DestroyGS (var parms: destroyOSDCB); prodos ($2002);
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procedure GetFileInfoGS (var parms: getFileInfoOSDCB); prodos ($2006);
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procedure GetMarkGS (var parms: getMarkOSDCB); prodos ($2017);
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procedure OpenGS (var parms: openOSDCB); prodos ($2010);
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procedure SetEOFGS (var parms: setMarkOSDCB); prodos ($2018);
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procedure SetMarkGS (var parms: setMarkOSDCB); prodos ($2016);
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procedure WriteGS (var parms: readWriteOSDCB); prodos ($2013);
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{---------------------------------------------------------------}
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procedure DestroySymbolFile;
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{ Delete any existing symbol file }
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var
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dsRec: destroyOSDCB; {DestroyGS record}
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giRec: getFileInfoOSDCB; {GetFileInfoGS record}
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begin {DestroySymbolFile}
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giRec.pCount := 4;
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giRec.pathname := @symName.theString;
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GetFileInfoGS(giRec);
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if (giRec.filetype = symFiletype) and (giRec.auxtype = symAuxtype) then begin
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dsRec.pCount := 1;
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dsRec.pathname := @symName.theString;
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DestroyGS(dsRec);
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end; {if}
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end; {DestroySymbolFile}
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procedure Purge;
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{ Purge the output buffer }
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var
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clRec: closeOSDCB; {CloseGS record}
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wrRec: readWriteOSDCB; {WriteGS record}
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begin {Purge}
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wrRec.pcount := 4;
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wrRec.refnum := symRefnum;
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wrRec.dataBuffer := pointer(buffer);
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wrRec.requestCount := (bufSize - bufLen);
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WriteGS(wrRec);
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if ToolError <> 0 then begin
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clRec.pCount := 1;
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clRec.refnum := symRefnum;
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CloseGS(clRec);
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DestroySymbolFile;
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saveSource := false;
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end; {if}
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bufLen := bufSize;
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bufPtr := pointer(buffer);
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end; {Purge}
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procedure CloseSymbols;
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{ Close the symbol file }
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var
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clRec: closeOSDCB; {CloseGS record}
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begin {CloseSymbols}
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Purge;
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clRec.pCount := 1;
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clRec.refnum := symRefnum;
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CloseGS(clRec);
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if numErrors <> 0 then
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DestroySymbolFile;
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end; {CloseSymbols}
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function ReadExtended: extended;
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{ Read an extended precision real from the symbol file }
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{ }
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{ Returns: value read }
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type
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extendedptr = ^extended;
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begin {ReadExtended}
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ReadExtended := extendedptr(symPtr)^;
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symPtr := pointer(ord4(symPtr)+10);
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end; {ReadExtended}
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function ReadLong: longint;
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{ Read a long word from the symbol file }
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{ }
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{ Returns: long word read }
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type
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longptr = ^longint;
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begin {ReadLong}
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ReadLong := longptr(symPtr)^;
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symPtr := pointer(ord4(symPtr)+4);
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end; {ReadLong}
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function ReadLongString: longStringPtr;
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{ Read a long string from the symbol file }
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{ }
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{ Returns: string read }
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var
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len: 0..maxint; {string buffer length}
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sp1, sp2: longStringPtr; {work pointers}
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begin {ReadLongString}
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sp1 := longStringPtr(symPtr);
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len := sp1^.length + 2;
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symPtr := pointer(ord4(symPtr) + len);
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sp2 := pointer(GMalloc(len));
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BlockMove(sp1, sp2, len);
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ReadLongString := sp2;
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end; {ReadLongString}
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function ReadString: stringPtr;
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{ Read a string from the symbol file }
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{ }
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{ Returns: string read }
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var
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len: 0..255; {string buffer length}
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sp1, sp2: stringPtr; {work pointers}
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begin {ReadString}
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sp1 := stringptr(symPtr);
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len := length(sp1^) + 1;
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symPtr := pointer(ord4(symPtr) + len);
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sp2 := pointer(GMalloc(len));
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BlockMove(sp1, sp2, len);
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ReadString := sp2;
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end; {ReadString}
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function ReadByte: integer;
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{ Read a byte from the symbol file }
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{ }
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{ Returns: byte read }
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type
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intptr = ^integer;
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begin {ReadByte}
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ReadByte := (intptr(symPtr)^) & $00FF;
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symPtr := pointer(ord4(symPtr)+1);
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end; {ReadByte}
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function ReadWord: integer;
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{ Read a word from the symbol file }
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{ }
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{ Returns: word read }
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type
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intptr = ^integer;
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begin {ReadWord}
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ReadWord := intptr(symPtr)^;
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symPtr := pointer(ord4(symPtr)+2);
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end; {ReadWord}
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procedure ReadChars (var p1, p2: ptr);
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{ Read a character stream from the file }
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{ }
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{ parameters: }
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{ p1 - (output) pointer to first char in stream }
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{ p2 - (output) points one past last char in stream }
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var
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len: integer; {length of the stream}
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begin {ReadChars}
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len := ReadWord;
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p1 := pointer(GMalloc(len));
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p2 := pointer(ord4(p1) + len);
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BlockMove(symPtr, p1, len);
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symPtr := pointer(ord4(symPtr) + len);
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end; {ReadChars}
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procedure WriteExtended (e: extended);
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{ Write an extended constant to the symbol file }
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{ }
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{ parameters: }
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{ e - constant to write }
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var
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ePtr: ^extended; {work pointer}
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begin {WriteExtended}
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if bufLen < 10 then
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Purge;
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ePtr := pointer(bufPtr);
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ePtr^ := e;
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bufPtr := pointer(ord4(bufPtr) + 10);
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bufLen := bufLen - 10;
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end; {WriteExtended}
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procedure WriteLong (i: longint);
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{ Write a long word to the symbol file }
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{ }
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{ parameters: }
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{ i - long word to write }
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var
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lPtr: ^longint; {work pointer}
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begin {WriteLong}
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if bufLen < 4 then
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Purge;
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lPtr := pointer(bufPtr);
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lPtr^ := i;
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bufPtr := pointer(ord4(bufPtr) + 4);
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bufLen := bufLen - 4;
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end; {WriteLong}
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procedure WriteByte (i: integer);
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{ Write a byte to the symbol file }
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{ }
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{ parameters: }
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{ i - byte to write }
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var
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iPtr: ^byte; {work pointer}
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begin {WriteByte}
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if bufLen = 0 then
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Purge;
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iPtr := pointer(bufPtr);
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iPtr^ := i;
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bufPtr := pointer(ord4(bufPtr) + 1);
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bufLen := bufLen - 1;
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end; {WriteByte}
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procedure WriteWord (i: integer);
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{ Write a word to the symbol file }
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{ }
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{ parameters: }
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{ i - word to write }
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var
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iPtr: ^integer; {work pointer}
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begin {WriteWord}
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if bufLen < 2 then
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Purge;
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iPtr := pointer(bufPtr);
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iPtr^ := i;
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bufPtr := pointer(ord4(bufPtr) + 2);
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bufLen := bufLen - 2;
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end; {WriteWord}
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procedure WriteLongString (s: longStringPtr);
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{ Write a long string to the symbol file }
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{ }
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{ parameters: }
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{ s - pointer to the string to write }
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var
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i: 0..maxint; {loop/index variables}
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len: 0..maxint; {string length}
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wrRec: readWriteOSDCB; {WriteGS record}
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begin {WriteLongString}
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len := s^.length;
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if bufLen < len+2 then
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Purge;
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if bufLen < len+2 then begin
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wrRec.pcount := 4;
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wrRec.refnum := symRefnum;
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wrRec.dataBuffer := pointer(s);
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wrRec.requestCount := s^.length + 2;
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WriteGS(wrRec);
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if ToolError <> 0 then begin
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CloseSymbols;
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DestroySymbolFile;
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saveSource := false;
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end; {if}
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end {if}
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else begin
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WriteWord(len);
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for i := 1 to len do begin
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bufPtr^ := ord(s^.str[i]);
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bufPtr := pointer(ord4(bufPtr) + 1);
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end; {for}
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bufLen := bufLen - len;
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end; {else}
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end; {WriteLongString}
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procedure WriteChars (p1, p2: ptr);
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{ Write a stream of chars as a longString }
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{ }
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{ parameters: }
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{ p1 - points to the first char to write }
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{ p2 - points to the byte following the last char }
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var
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i: 0..maxint; {loop/index variables}
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len: 0..maxint; {char length}
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wrRec: readWriteOSDCB; {WriteGS record}
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begin {WriteChars}
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len := ord(ord4(p2) - ord4(p1));
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WriteWord(len);
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if bufLen < len then
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Purge;
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if bufLen < len then begin
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if saveSource then begin
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wrRec.pcount := 4;
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wrRec.refnum := symRefnum;
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wrRec.dataBuffer := pointer(p1);
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wrRec.requestCount := ord4(p2) - ord4(p1);
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WriteGS(wrRec);
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if ToolError <> 0 then begin
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CloseSymbols;
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DestroySymbolFile;
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saveSource := false;
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end; {if}
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end; {if}
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end {if}
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else begin
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for i := 1 to len do begin
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bufPtr^ := p1^;
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bufPtr := pointer(ord4(bufPtr)+1);
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p1 := pointer(ord4(p1)+1);
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end; {for}
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bufLen := bufLen - len;
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end; {else}
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end; {WriteChars}
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procedure WriteString (s: stringPtr);
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{ Write a string to the symbol file }
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{ }
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{ parameters: }
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{ s - pointer to the string to write }
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var
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i: 0..255; {loop/index variable}
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len: 0..255; {length of the string}
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begin {WriteString}
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len := length(s^);
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if bufLen < len+1 then
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Purge;
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for i := 0 to len do begin
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bufPtr^ := ord(s^[i]);
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bufPtr := pointer(ord4(bufPtr)+1);
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end; {for}
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bufLen := bufLen - (len + 1);
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end; {WriteString}
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procedure MarkBlock;
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{ Mark the length of the current block }
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var
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l: longint; {block length}
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smRec: setMarkOSDCB; {SetMarkGS record}
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gmRec: getMarkOSDCB; {GetMarkGS record}
|
|
wrRec: readWriteOSDCB; {WriteGS record}
|
|
|
|
begin {MarkBlock}
|
|
Purge; {purge the buffer}
|
|
gmRec.pCount := 2; {get the current EOF}
|
|
gmRec.refnum := symRefnum;
|
|
GetMarkGS(gmRec);
|
|
if ToolError = 0 then begin
|
|
smRec.pcount := 3; {set the mark to the block length field}
|
|
smRec.refnum := symRefnum;
|
|
smRec.base := 0;
|
|
smRec.displacement := symMark;
|
|
SetMarkGS(smRec);
|
|
if ToolError = 0 then begin
|
|
l := gmRec.displacement - smRec.displacement - 4;
|
|
wrRec.pcount := 4;
|
|
wrRec.refnum := symRefnum;
|
|
wrRec.dataBuffer := @l;
|
|
wrRec.requestCount := 4;
|
|
WriteGS(wrRec);
|
|
if ToolError <> 0 then begin
|
|
CloseSymbols;
|
|
DestroySymbolFile;
|
|
saveSource := false;
|
|
end; {if}
|
|
smRec.displacement := gmRec.displacement;
|
|
SetMarkGS(smRec);
|
|
end; {if}
|
|
end; {if}
|
|
if ToolError <> 0 then begin {for errors, delete the symbol file}
|
|
CloseSymbols;
|
|
DestroySymbolFile;
|
|
saveSource := false;
|
|
end; {if}
|
|
end; {MarkBlock}
|
|
|
|
|
|
function GetMark: longint;
|
|
|
|
{ Find the current file mark }
|
|
{ }
|
|
{ Returns: file mark }
|
|
|
|
var
|
|
gmRec: getMarkOSDCB; {GetMarkGS record}
|
|
|
|
begin {GetMark}
|
|
gmRec.pCount := 2;
|
|
gmRec.refnum := symRefnum;
|
|
GetMarkGS(gmRec);
|
|
GetMark := gmRec.displacement + (bufSize - bufLen);
|
|
if ToolError <> 0 then begin
|
|
CloseSymbols;
|
|
DestroySymbolFile;
|
|
saveSource := false;
|
|
end; {else}
|
|
end; {GetMark}
|
|
|
|
|
|
procedure SetMark;
|
|
|
|
{ Mark the start of a block }
|
|
|
|
begin {SetMark}
|
|
symMark := GetMark;
|
|
WriteLong(0);
|
|
end; {SetMark}
|
|
|
|
{---------------------------------------------------------------}
|
|
|
|
procedure EndInclude {chPtr: ptr};
|
|
|
|
{ Saves symbols created by the include file }
|
|
{ }
|
|
{ Parameters: }
|
|
{ chPtr - chPtr when the file returned }
|
|
{ }
|
|
{ Notes: }
|
|
{ 1. Call this subroutine right after processing an }
|
|
{ include file. }
|
|
{ 2. Declared externally in Scanner.pas }
|
|
|
|
|
|
procedure SaveMacroTable;
|
|
|
|
{ Save macros to the symbol file }
|
|
|
|
|
|
procedure SaveMacros;
|
|
|
|
{ Write the macros to the symbol file }
|
|
|
|
var
|
|
i: 0..hashSize; {loop/index variable}
|
|
mp: macroRecordPtr; {used to trace macro lists}
|
|
tp: tokenListRecordPtr; {used to trace token lists}
|
|
|
|
|
|
procedure WriteToken (var token: tokenType);
|
|
|
|
{ Write a token in the header file }
|
|
{ }
|
|
{ parameters: }
|
|
{ token - token to write }
|
|
|
|
begin {WriteToken}
|
|
WriteByte(ord(token.kind));
|
|
WriteByte(ord(token.class));
|
|
if token.numstring = nil then
|
|
WriteByte(0)
|
|
else begin
|
|
WriteByte(1);
|
|
WriteString(token.numstring);
|
|
end; {else}
|
|
case token.class of
|
|
identifier: WriteString(token.name);
|
|
intConstant: WriteWord(token.ival);
|
|
longConstant: WriteLong(token.lval);
|
|
longlongConstant: begin
|
|
WriteLong(token.qval.lo);
|
|
WriteLong(token.qval.hi);
|
|
end;
|
|
realConstant: WriteExtended(token.rval);
|
|
stringConstant: begin
|
|
WriteLongString(token.sval);
|
|
WriteByte(ord(token.ispstring));
|
|
end;
|
|
macroParameter: WriteWord(token.pnum);
|
|
reservedSymbol: if token.kind in [lbracech,rbracech,lbrackch,
|
|
rbrackch,poundch,poundpoundop] then
|
|
WriteByte(ord(token.isDigraph));
|
|
otherwise: ;
|
|
end; {case}
|
|
end; {WriteToken}
|
|
|
|
|
|
begin {SaveMacros}
|
|
for i := 0 to hashSize do begin {loop over hash buckets}
|
|
mp := macros^[i]; {loop over macro records in hash bucket}
|
|
while mp <> nil do begin
|
|
if not mp^.saved then begin
|
|
mp^.saved := true; {mark this one as saved}
|
|
WriteString(mp^.name); {write the macroRecord}
|
|
WriteByte(mp^.parameters);
|
|
WriteByte(ord(mp^.isVarargs));
|
|
WriteByte(ord(mp^.readOnly));
|
|
WriteByte(mp^.algorithm);
|
|
tp := mp^.tokens; {loop over token list}
|
|
while tp <> nil do begin
|
|
WriteByte(1); {write tokenListRecord}
|
|
WriteLongString(tp^.tokenString);
|
|
WriteToken(tp^.token);
|
|
WriteByte(ord(tp^.expandEnabled));
|
|
WriteChars(tp^.tokenStart, tp^.tokenEnd);
|
|
tp := tp^.next;
|
|
end; {while}
|
|
WriteByte(0); {mark end of token list}
|
|
end; {if}
|
|
mp := mp^.next;
|
|
end; {while}
|
|
end; {for}
|
|
end; {SaveMacros}
|
|
|
|
|
|
begin {SaveMacroTable}
|
|
SetMark; {set the macro table length mark}
|
|
if saveSource then {write the macro table}
|
|
SaveMacros;
|
|
if saveSource then {mark the length of the table}
|
|
MarkBlock;
|
|
end; {SaveMacroTable}
|
|
|
|
|
|
procedure SavePragmaEffects;
|
|
|
|
{ Save the variables effected by any pragmas encountered }
|
|
|
|
var
|
|
count: 0..maxint; {number of path names}
|
|
i: 1..10; {loop/index variable}
|
|
p: pragmas; {loop variable}
|
|
pp: pathRecordPtr; {used to trace pathname list}
|
|
|
|
begin {SavePragmaEffects}
|
|
SetMark;
|
|
if saveSource then
|
|
for p := succ(p_startofenum) to pred(p_endofenum) do
|
|
if p in savePragmas then
|
|
if saveSource then begin
|
|
WriteByte(ord(p));
|
|
case p of
|
|
p_cda: begin
|
|
WriteString(@menuLine);
|
|
WriteString(openName);
|
|
WriteString(closeName);
|
|
end;
|
|
|
|
p_cdev: WriteString(openName);
|
|
|
|
p_float: begin
|
|
WriteWord(floatCard);
|
|
WriteWord(floatSlot);
|
|
end;
|
|
|
|
p_keep: WriteLongString(@outFileGS.theString);
|
|
|
|
p_line: begin
|
|
WriteWord(lineNumber);
|
|
WriteLongString(@sourceFileGS.theString);
|
|
end;
|
|
|
|
p_nda: begin
|
|
WriteString(openName);
|
|
WriteString(closeName);
|
|
WriteString(actionName);
|
|
WriteString(initName);
|
|
WriteWord(refreshPeriod);
|
|
WriteWord(eventMask);
|
|
WriteString(@menuLine);
|
|
end;
|
|
|
|
p_nba:
|
|
WriteString(openName);
|
|
|
|
p_xcmd:
|
|
WriteString(openName);
|
|
|
|
p_debug:
|
|
WriteWord(ord(rangeCheck)
|
|
| (ord(debugFlag) << 1)
|
|
| (ord(profileFlag) << 2)
|
|
| (ord(traceBack) << 3)
|
|
| (ord(checkStack) << 4)
|
|
| (ord(debugStrFlag) << 15));
|
|
|
|
p_lint: begin
|
|
WriteWord(lint);
|
|
WriteByte(ord(lintIsError));
|
|
end;
|
|
|
|
p_memorymodel: WriteByte(ord(smallMemoryModel));
|
|
|
|
p_expand: WriteByte(ord(printMacroExpansions));
|
|
|
|
p_optimize:
|
|
WriteByte(ord(peepHole)
|
|
| (ord(npeepHole) << 1)
|
|
| (ord(registers) << 2)
|
|
| (ord(saveStack) << 3)
|
|
| (ord(commonSubexpression) << 4)
|
|
| (ord(loopOptimizations) << 5)
|
|
| (ord(strictVararg) << 6));
|
|
|
|
p_stacksize: WriteWord(stackSize);
|
|
|
|
p_toolparms: WriteByte(ord(toolParms));
|
|
|
|
p_databank: WriteByte(ord(dataBank));
|
|
|
|
p_rtl: ;
|
|
|
|
p_noroot: ;
|
|
|
|
p_path: begin
|
|
pp := pathList;
|
|
count := 0;
|
|
while pp <> nil do begin
|
|
count := count+1;
|
|
pp := pp^.next;
|
|
end; {while}
|
|
WriteWord(count);
|
|
pp := pathList;
|
|
while pp <> nil do begin
|
|
WriteString(pp^.path);
|
|
pp := pp^.next;
|
|
end; {while}
|
|
end; {p_path}
|
|
|
|
p_ignore:
|
|
WriteByte(ord(skipIllegalTokens)
|
|
| (ord(allowLongIntChar) << 1)
|
|
| (ord(allowTokensAfterEndif) << 2)
|
|
| (ord(allowSlashSlashComments) << 3)
|
|
| (ord(allowMixedDeclarations) << 4)
|
|
| (ord(looseCharTypeChecks) << 5));
|
|
|
|
p_segment: begin
|
|
for i := 1 to 10 do begin
|
|
WriteByte(defaultSegment[i]);
|
|
WriteByte(currentSegment[i]);
|
|
end; {for}
|
|
WriteWord(segmentKind);
|
|
end;
|
|
|
|
p_unix: WriteByte(ord(unix_1));
|
|
|
|
end; {case}
|
|
end; {if}
|
|
if saveSource then
|
|
MarkBlock;
|
|
savePragmas := [];
|
|
end; {SavePragmaEffects}
|
|
|
|
|
|
procedure SaveSourceStream;
|
|
|
|
{ Save the source stream for later compares }
|
|
|
|
var
|
|
wrRec: readWriteOSDCB; {WriteGS record}
|
|
|
|
begin {SaveSourceStream}
|
|
WriteLong(ord4(chPtr) - ord4(symChPtr));
|
|
Purge;
|
|
wrRec.pcount := 4;
|
|
wrRec.refnum := symRefnum;
|
|
wrRec.dataBuffer := pointer(symChPtr);
|
|
wrRec.requestCount := ord4(chPtr) - ord4(symChPtr);
|
|
WriteGS(wrRec);
|
|
symChPtr := chPtr;
|
|
if ToolError <> 0 then begin
|
|
CloseSymbols;
|
|
DestroySymbolFile;
|
|
saveSource := false;
|
|
end; {if}
|
|
end; {SaveSourceStream}
|
|
|
|
|
|
procedure SaveSymbolTable;
|
|
|
|
{ Save symbols to the symbol file }
|
|
|
|
|
|
procedure SaveSymbol;
|
|
|
|
{ Write the symbols to the symbol file }
|
|
|
|
var
|
|
abort: boolean; {abort due to initialized var?}
|
|
efRec: setMarkOSDCB; {SetEOFGS record}
|
|
i: 0..hashSize; {loop/index variable}
|
|
sp: identPtr; {used to trace symbol lists}
|
|
|
|
|
|
procedure WriteIdent (ip: identPtr);
|
|
|
|
{ write a symbol to the symbol file }
|
|
{ }
|
|
{ parameters: }
|
|
{ ip - pointer to symbol entry }
|
|
|
|
|
|
procedure WriteType (tp: typePtr);
|
|
|
|
{ write a type entry to the symbol file }
|
|
{ }
|
|
{ parameters: }
|
|
{ tp - pointer to type entry }
|
|
|
|
var
|
|
ip: identPtr; {for tracing field list}
|
|
|
|
|
|
procedure WriteParm (pp: parameterPtr);
|
|
|
|
{ write a parameter list to the symbol file }
|
|
{ }
|
|
{ parameters: }
|
|
{ pp - parameter pointer }
|
|
|
|
begin {WriteParm}
|
|
while pp <> nil do begin
|
|
WriteByte(1);
|
|
WriteType(pp^.parameterType);
|
|
pp := pp^.next;
|
|
end; {while}
|
|
WriteByte(0);
|
|
end; {WriteParm}
|
|
|
|
|
|
begin {WriteType}
|
|
if tp = sCharPtr then
|
|
WriteByte(2)
|
|
else if tp = charPtr then
|
|
WriteByte(3)
|
|
else if tp = intPtr then
|
|
WriteByte(4)
|
|
else if tp = uIntPtr then
|
|
WriteByte(5)
|
|
else if tp = longPtr then
|
|
WriteByte(6)
|
|
else if tp = uLongPtr then
|
|
WriteByte(7)
|
|
else if tp = floatPtr then
|
|
WriteByte(8)
|
|
else if tp = doublePtr then
|
|
WriteByte(9)
|
|
else if tp = extendedPtr then
|
|
WriteByte(10)
|
|
else if tp = stringTypePtr then
|
|
WriteByte(11)
|
|
else if tp = voidPtr then
|
|
WriteByte(12)
|
|
else if tp = voidPtrPtr then
|
|
WriteByte(13)
|
|
else if tp = defaultStruct then
|
|
WriteByte(14)
|
|
else if tp = uCharPtr then
|
|
WriteByte(15)
|
|
else if tp = shortPtr then
|
|
WriteByte(16)
|
|
else if tp = uShortPtr then
|
|
WriteByte(17)
|
|
else if tp^.saveDisp <> 0 then begin
|
|
WriteByte(1);
|
|
WriteLong(tp^.saveDisp);
|
|
end {if}
|
|
else begin
|
|
WriteByte(0);
|
|
tp^.saveDisp := GetMark;
|
|
WriteLong(tp^.size);
|
|
WriteByte(ord(tp^.isConstant));
|
|
WriteByte(ord(tp^.kind));
|
|
case tp^.kind of
|
|
scalarType: begin
|
|
WriteByte(ord(tp^.baseType));
|
|
WriteByte(ord(tp^.cType));
|
|
end;
|
|
|
|
arrayType: begin
|
|
WriteLong(tp^.elements);
|
|
WriteType(tp^.aType);
|
|
end;
|
|
|
|
pointerType:
|
|
WriteType(tp^.pType);
|
|
|
|
functionType: begin
|
|
WriteByte((ord(tp^.varargs) << 2)
|
|
| (ord(tp^.prototyped) << 1) | ord(tp^.isPascal));
|
|
WriteWord(tp^.toolnum);
|
|
WriteLong(tp^.dispatcher);
|
|
WriteType(tp^.fType);
|
|
WriteParm(tp^.parameterList);
|
|
end;
|
|
|
|
enumConst:
|
|
WriteWord(tp^.eval);
|
|
|
|
definedType:
|
|
WriteType(tp^.dType);
|
|
|
|
structType, unionType: begin
|
|
ip := tp^.fieldList;
|
|
while ip <> nil do begin
|
|
WriteByte(1);
|
|
WriteIdent(ip);
|
|
ip := ip^.next;
|
|
end; {while}
|
|
WriteByte(0);
|
|
end;
|
|
|
|
otherwise: ;
|
|
|
|
end; {case}
|
|
end; {else}
|
|
end; {WriteType}
|
|
|
|
|
|
begin {WriteIdent}
|
|
WriteString(ip^.name);
|
|
WriteType(ip^.itype);
|
|
if (ip^.disp = 0) and (ip^.bitDisp = 0) and (ip^.bitSize = 0) then
|
|
WriteByte(0)
|
|
else if (ip^.bitSize = 0) and (ip^.bitDisp = 0) then begin
|
|
if ip^.disp < maxint then begin
|
|
WriteByte(1);
|
|
WriteWord(ord(ip^.disp));
|
|
end {if}
|
|
else begin
|
|
WriteByte(2);
|
|
WriteLong(ip^.disp);
|
|
end; {else}
|
|
end {else if}
|
|
else begin
|
|
WriteByte(3);
|
|
WriteLong(ip^.disp);
|
|
WriteByte(ip^.bitDisp);
|
|
WriteByte(ip^.bitSize);
|
|
end; {else}
|
|
if ip^.iPtr <> nil then
|
|
abort := true;
|
|
WriteByte(ord(ip^.state));
|
|
WriteByte(ord(ip^.isForwardDeclared));
|
|
WriteByte(ord(ip^.class));
|
|
WriteByte(ord(ip^.storage));
|
|
end; {WriteIdent}
|
|
|
|
|
|
begin {SaveSymbol}
|
|
abort := false; {no reason to abort, yet}
|
|
for i := 0 to hashSize2 do begin {loop over hash buckets}
|
|
sp := globalTable^.buckets[i]; {loop over symbol records in hash bucket}
|
|
while sp <> nil do begin
|
|
if not sp^.saved then begin
|
|
sp^.saved := true; {mark this one as saved}
|
|
WriteWord(i); {save the symbol}
|
|
WriteIdent(sp);
|
|
end; {if}
|
|
sp := sp^.next;
|
|
end; {while}
|
|
end; {for}
|
|
if abort then begin
|
|
Purge;
|
|
efRec.pcount := 3;
|
|
efRec.refnum := symRefnum;
|
|
efRec.base := 0;
|
|
efRec.displacement := tokenMark;
|
|
SetEOFGS(efRec);
|
|
if ToolError <> 0 then begin
|
|
CloseSymbols;
|
|
DestroySymbolFile;
|
|
end; {if}
|
|
saveSource := false;
|
|
end; {if}
|
|
end; {SaveSymbol}
|
|
|
|
|
|
begin {SaveSymbolTable}
|
|
SetMark; {set the symbol table length mark}
|
|
if saveSource then {write the symbol table}
|
|
if globalTable <> nil then
|
|
SaveSymbol;
|
|
if saveSource then {mark the length of the table}
|
|
MarkBlock;
|
|
end; {SaveSymbolTable}
|
|
|
|
|
|
begin {EndInclude}
|
|
if not ignoreSymbols then begin
|
|
includeLevel := includeLevel-1;
|
|
if includeLevel = 0 then
|
|
if saveSource then begin
|
|
MarkBlock; {set the include name mark}
|
|
SaveSourceStream; {save the source stream}
|
|
SaveMacroTable; {save the macro table}
|
|
SaveSymbolTable; {save the symbol table}
|
|
SavePragmaEffects; {save the effects of pragmas}
|
|
tokenMark := GetMark; {record mark for early exit}
|
|
includeMark := false; {no include mark, yet}
|
|
end; {if}
|
|
end; {if}
|
|
end; {EndInclude}
|
|
|
|
|
|
procedure FlagPragmas {pragma: pragmas};
|
|
|
|
{ record the effects of a pragma }
|
|
{ }
|
|
{ parameters: }
|
|
{ pragma - pragma to record }
|
|
{ }
|
|
{ Notes: }
|
|
{ 1. Defined as extern in Scanner.pas }
|
|
{ 2. For the purposes of this unit, the segment statement }
|
|
{ and #line directive are treated as pragmas. }
|
|
|
|
begin {FlagPragmas}
|
|
savePragmas := savePragmas + [pragma];
|
|
end; {FlagPragmas}
|
|
|
|
|
|
procedure InitHeader {var fName: gsosOutString};
|
|
|
|
{ look for a header file, reading it if it exists }
|
|
{ }
|
|
{ parameters: }
|
|
{ fName - source file name (var for efficiency) }
|
|
|
|
type
|
|
typeDispPtr = ^typeDispRecord; {type displacement/pointer table}
|
|
typeDispRecord = record
|
|
next: typeDispPtr;
|
|
saveDisp: longint;
|
|
tPtr: typePtr;
|
|
end;
|
|
|
|
var
|
|
done: boolean; {for loop termination test}
|
|
typeDispList: typeDispPtr; {type displacement/pointer table}
|
|
|
|
|
|
procedure DisposeTypeDispList;
|
|
|
|
{ Dispose of the type displacement list }
|
|
|
|
var
|
|
tp: typeDispPtr; {work pointer}
|
|
|
|
begin {DisposeTypeDispList}
|
|
while typeDispList <> nil do begin
|
|
tp := typeDispList;
|
|
typeDispList := tp^.next;
|
|
dispose(tp);
|
|
end; {while}
|
|
end; {DisposeTypeDispList}
|
|
|
|
|
|
function EndOfSymbols: boolean;
|
|
|
|
{ See if we're at the end of the symbol file }
|
|
{ }
|
|
{ Returns: True if at the end, else false }
|
|
|
|
begin {EndOfSymbols}
|
|
EndOfSymbols := ord4(symPtr) >= ord4(symEndPtr);
|
|
end; {EndOfSymbols}
|
|
|
|
|
|
function OpenSymbols: boolean;
|
|
|
|
{ open and initialize the symbol file }
|
|
{ }
|
|
{ Returns: True if successful, else false }
|
|
|
|
var
|
|
crRec: createOSDCB; {CreateGS record}
|
|
opRec: openOSDCB; {OpenGS record}
|
|
|
|
begin {OpenSymbols}
|
|
OpenSymbols := false; {assume we will fail}
|
|
DestroySymbolFile; {destroy any existing file}
|
|
crRec.pCount := 5; {create a symbol file}
|
|
crRec.pathName := @symName.theString;
|
|
crRec.access := $C3;
|
|
crRec.fileType := symFiletype;
|
|
crRec.auxType := symAuxtype;
|
|
crRec.storageType := 1;
|
|
CreateGS(crRec);
|
|
if ToolError = 0 then begin
|
|
opRec.pCount := 3;
|
|
opRec.pathname := @symName.theString;
|
|
opRec.requestAccess := 3;
|
|
OpenGS(opRec);
|
|
if ToolError = 0 then begin
|
|
symRefnum := opRec.refnum;
|
|
OpenSymbols := true;
|
|
WriteWord(symFileVersion);
|
|
tokenMark := GetMark;
|
|
includeMark := false;
|
|
end; {if}
|
|
end; {if}
|
|
end; {OpenSymbols}
|
|
|
|
|
|
procedure PurgeSymbols;
|
|
|
|
{ Purge the symbol input file }
|
|
|
|
var
|
|
ffDCBGS: fastFileDCBGS; {fast file DCB}
|
|
|
|
begin {PurgeSymbols}
|
|
with ffDCBGS do begin {purge the file}
|
|
pCount := 5;
|
|
action := 7;
|
|
pathName := @symName.theString;
|
|
end; {with}
|
|
FastFileGS(ffDCBGS);
|
|
end; {PurgeSymbols}
|
|
|
|
|
|
function DatesMatch: boolean;
|
|
|
|
{ Make sure the create/mod dates have not changed }
|
|
|
|
var
|
|
giRec: getFileInfoOSDCB; {GetFileInfoGS record}
|
|
i: 1..maxint; {loop/index variable}
|
|
len: longint; {length of names}
|
|
match: boolean; {do the dates match?}
|
|
|
|
begin {DatesMatch}
|
|
match := true;
|
|
len := ReadLong;
|
|
while len > 0 do begin
|
|
giRec.pCount := 7;
|
|
giRec.pathname := pointer(ReadLongString);
|
|
len := len - (giRec.pathname^.size + 18);
|
|
GetFileInfoGS(giRec);
|
|
if ToolError = 0 then begin
|
|
for i := 1 to 8 do
|
|
match := match and (giRec.createDateTime[i] = ReadByte);
|
|
for i := 1 to 8 do
|
|
match := match and (giRec.modDateTime[i] = ReadByte);
|
|
end {if}
|
|
else begin
|
|
match := false;
|
|
len := 0;
|
|
end; {else}
|
|
if match and progress then begin
|
|
write('Including ');
|
|
for i := 1 to giRec.pathname^.size do
|
|
write(giRec.pathname^.theString[i]);
|
|
writeln;
|
|
end; {if}
|
|
end; {while}
|
|
DatesMatch := match;
|
|
end; {DatesMatch}
|
|
|
|
|
|
procedure ReadMacroTable;
|
|
|
|
{ Read macros from the symbol file }
|
|
|
|
var
|
|
bp: ^macroRecordPtr; {pointer to head of hash bucket}
|
|
ep: tokenListRecordPtr; {last token record}
|
|
mePtr: ptr; {end of macro table}
|
|
mp: macroRecordPtr; {new macro record}
|
|
tlen: integer; {length of the token name}
|
|
tp: tokenListRecordPtr; {new token record}
|
|
|
|
|
|
procedure ReadToken (var token: tokenType);
|
|
|
|
{ read a token }
|
|
{ }
|
|
{ parameters: }
|
|
{ token - (output) token read) }
|
|
|
|
begin {ReadToken}
|
|
token.kind := tokenEnum(ReadByte);
|
|
token.class := tokenClass(ReadByte);
|
|
if ReadByte = 0 then
|
|
token.numString := nil
|
|
else
|
|
token.numstring := ReadString;
|
|
case token.class of
|
|
identifier: token.name := ReadString;
|
|
intConstant: token.ival := ReadWord;
|
|
longConstant: token.lval := ReadLong;
|
|
longlongConstant: begin
|
|
token.qval.lo := ReadLong;
|
|
token.qval.hi := ReadLong;
|
|
end;
|
|
realConstant: token.rval := ReadExtended;
|
|
stringConstant: begin
|
|
token.sval := ReadLongString;
|
|
token.ispstring := ReadByte <> 0;
|
|
end;
|
|
macroParameter: token.pnum := ReadWord;
|
|
reservedSymbol: if token.kind in [lbracech,rbracech,lbrackch,
|
|
rbrackch,poundch,poundpoundop] then
|
|
token.isDigraph := boolean(ReadByte);
|
|
otherwise: ;
|
|
end; {case}
|
|
end; {ReadToken}
|
|
|
|
|
|
begin {ReadMacroTable}
|
|
mePtr := symPtr; {read the block length}
|
|
mePtr := pointer(ord4(mePtr) + ReadLong + 4);
|
|
while ord4(symPtr) < ord4(mePtr) do {process the macros}
|
|
begin
|
|
Spin;
|
|
mp := pointer(GMalloc(sizeof(macroRecord)));
|
|
mp^.saved := false;
|
|
mp^.name := ReadString;
|
|
bp := pointer(ord4(macros) + Hash(mp^.name));
|
|
mp^.next := bp^;
|
|
bp^ := mp;
|
|
mp^.parameters := ReadByte;
|
|
if mp^.parameters & $0080 <> 0 then
|
|
mp^.parameters := mp^.parameters | $FF00;
|
|
mp^.isVarargs := boolean(ReadByte);
|
|
mp^.readOnly := boolean(ReadByte);
|
|
mp^.algorithm := ReadByte;
|
|
mp^.tokens := nil;
|
|
ep := nil;
|
|
while ReadByte <> 0 do begin
|
|
tp := pointer(GMalloc(sizeof(tokenListRecord)));
|
|
tp^.next := nil;
|
|
tp^.tokenString := ReadLongString;
|
|
ReadToken(tp^.token);
|
|
tp^.expandEnabled := boolean(ReadByte);
|
|
ReadChars(tp^.tokenStart, tp^.tokenEnd);
|
|
if ep = nil then
|
|
mp^.tokens := tp
|
|
else
|
|
ep^.next := tp;
|
|
ep := tp;
|
|
end; {while}
|
|
end; {while}
|
|
symPtr := mePtr;
|
|
end; {ReadMacroTable}
|
|
|
|
|
|
procedure ReadPragmas;
|
|
|
|
{ Read pragma effects }
|
|
|
|
var
|
|
i: 0..maxint; {loop/index variable}
|
|
lsPtr: longStringPtr; {work pointer}
|
|
p: pragmas; {kind of pragma being processed}
|
|
pePtr: ptr; {end of pragma table}
|
|
pp, ppe: pathRecordPtr; {used to create a path name list}
|
|
sPtr: stringPtr; {work pointer}
|
|
val: integer; {temp value}
|
|
|
|
begin {ReadPragmas}
|
|
pePtr := symPtr; {read the block length}
|
|
pePtr := pointer(ord4(pePtr) + ReadLong + 4);
|
|
while ord4(symPtr) < ord4(pePtr) do {process the pragmas}
|
|
begin
|
|
Spin;
|
|
p := pragmas(ReadByte);
|
|
case p of
|
|
p_cda: begin
|
|
isClassicDeskAcc := true;
|
|
sPtr := ReadString;
|
|
menuLine := sPtr^;
|
|
openName := ReadString;
|
|
closeName := ReadString;
|
|
end;
|
|
|
|
p_cdev: begin
|
|
isCDev := true;
|
|
openName := ReadString;
|
|
end;
|
|
|
|
p_float: begin
|
|
floatCard := ReadWord;
|
|
floatSlot := ReadWord;
|
|
end;
|
|
|
|
p_keep: begin
|
|
liDCBGS.kFlag := 1;
|
|
lsPtr := ReadLongString;
|
|
outFileGS.theString.size := lsPtr^.length;
|
|
for i := 1 to outFileGS.theString.size do
|
|
outFileGS.theString.theString[i] := lsPtr^.str[i];
|
|
end;
|
|
|
|
p_line: begin
|
|
lineNumber := ReadWord;
|
|
lsPtr := ReadLongString;
|
|
sourceFileGS.theString.size := lsPtr^.length;
|
|
for i := 1 to sourceFileGS.theString.size do
|
|
sourceFileGS.theString.theString[i] := lsPtr^.str[i];
|
|
end;
|
|
|
|
p_nda: begin
|
|
isNewDeskAcc := true;
|
|
openName := ReadString;
|
|
closeName := ReadString;
|
|
actionName := ReadString;
|
|
initName := ReadString;
|
|
refreshPeriod := ReadWord;
|
|
eventMask := ReadWord;
|
|
sPtr := ReadString;
|
|
menuLine := sPtr^;
|
|
end;
|
|
|
|
p_nba: begin
|
|
isNBA := true;
|
|
openName := ReadString;
|
|
end;
|
|
|
|
p_xcmd: begin
|
|
isXCMD := true;
|
|
openName := ReadString;
|
|
end;
|
|
|
|
p_debug: begin
|
|
val := ReadWord;
|
|
rangeCheck := odd(val);
|
|
debugFlag := odd(val >> 1);
|
|
profileFlag := odd(val >> 2);
|
|
traceback := odd(val >> 3);
|
|
checkStack := odd(val >> 4);
|
|
debugStrFlag := odd(val >> 15);
|
|
end;
|
|
|
|
p_lint: begin
|
|
lint := ReadWord;
|
|
lintIsError := boolean(ReadByte);
|
|
end;
|
|
|
|
p_memorymodel: smallMemoryModel := boolean(ReadByte);
|
|
|
|
p_expand: printMacroExpansions := boolean(ReadByte);
|
|
|
|
p_optimize: begin
|
|
val := ReadByte;
|
|
peepHole := odd(val);
|
|
npeepHole := odd(val >> 1);
|
|
registers := odd(val >> 2);
|
|
saveStack := odd(val >> 3);
|
|
commonSubexpression := odd(val >> 4);
|
|
loopOptimizations := odd(val >> 5);
|
|
strictVararg := odd(val >> 6);
|
|
end;
|
|
|
|
p_stacksize: stackSize := ReadWord;
|
|
|
|
p_toolparms: toolParms := boolean(ReadByte);
|
|
|
|
p_databank: dataBank := boolean(ReadByte);
|
|
|
|
p_rtl: rtl := true;
|
|
|
|
p_noroot: noroot := true;
|
|
|
|
p_path: begin
|
|
i := ReadWord;
|
|
pathList := nil;
|
|
ppe := nil;
|
|
while i <> 0 do begin
|
|
pp := pathRecordPtr(GMalloc(sizeof(pathRecord)));
|
|
pp^.path := ReadString;
|
|
pp^.next := nil;
|
|
if pathList = nil then
|
|
pathList := pp
|
|
else
|
|
ppe^.next := pp;
|
|
ppe := pp;
|
|
i := i-1;
|
|
end; {while}
|
|
end; {p_path}
|
|
|
|
p_ignore: begin
|
|
i := ReadByte;
|
|
skipIllegalTokens := odd(i);
|
|
allowLongIntChar := odd(i >> 1);
|
|
allowTokensAfterEndif := odd(i >> 2);
|
|
allowSlashSlashComments := odd(i >> 3);
|
|
allowMixedDeclarations := odd(i >> 4);
|
|
c99Scope := allowMixedDeclarations;
|
|
looseCharTypeChecks := odd(i >> 5);
|
|
end;
|
|
|
|
p_segment: begin
|
|
for i := 1 to 10 do begin
|
|
defaultSegment[i] := chr(ReadByte);
|
|
currentSegment[i] := chr(ReadByte);
|
|
end; {for}
|
|
segmentKind := ReadWord;
|
|
end;
|
|
|
|
p_unix: unix_1 := boolean(ReadByte);
|
|
|
|
end; {case}
|
|
end; {while}
|
|
symPtr := pePtr;
|
|
end; {ReadPragmas}
|
|
|
|
|
|
procedure ReadSymbolTable;
|
|
|
|
{ Read symbols from the symbol file }
|
|
|
|
var
|
|
hashPtr: ^identPtr; {pointer to hash bucket in symbol table}
|
|
sePtr: ptr; {end of symbol table}
|
|
sp: identPtr; {identifier being constructed}
|
|
|
|
|
|
function ReadIdent: identPtr;
|
|
|
|
{ Read an identifier from the file }
|
|
{ }
|
|
{ Returns: Pointer to the new identifier }
|
|
|
|
var
|
|
format: 0..3; {storage format}
|
|
sp: identPtr; {identifier being constructed}
|
|
|
|
|
|
procedure ReadType (var tp: typePtr);
|
|
|
|
{ read a type from the symbol file }
|
|
{ }
|
|
{ parameters: }
|
|
{ tp - (output) type entry }
|
|
|
|
var
|
|
disp: longint; {disp read from symbol file}
|
|
ep: identPtr; {end of list of field names}
|
|
ip: identPtr; {for tracing field list}
|
|
tdisp: typeDispPtr; {used to trace, add to typeDispList}
|
|
val: integer; {temp word}
|
|
|
|
|
|
procedure ReadParm (var pp: parameterPtr);
|
|
|
|
{ read a parameter list from the symbol file }
|
|
{ }
|
|
{ parameters: }
|
|
{ pp - (output) parameter pointer }
|
|
|
|
var
|
|
ep: parameterPtr; {last parameter in list}
|
|
np: parameterPtr; {new parameter}
|
|
|
|
begin {ReadParm}
|
|
pp := nil;
|
|
ep := nil;
|
|
while ReadByte = 1 do begin
|
|
np := parameterPtr(GMalloc(sizeof(parameterRecord)));
|
|
np^.next := nil;
|
|
np^.parameter := nil;
|
|
ReadType(np^.parameterType);
|
|
if ep = nil then
|
|
pp := np
|
|
else
|
|
ep^.next := np;
|
|
ep := np;
|
|
end; {while}
|
|
end; {ReadParm}
|
|
|
|
|
|
begin {ReadType}
|
|
case ReadByte of
|
|
0: begin {read a new type}
|
|
tp := typePtr(GMalloc(sizeof(typeRecord)));
|
|
new(tdisp);
|
|
tdisp^.next := typeDispList;
|
|
typeDispList := tdisp;
|
|
tdisp^.saveDisp := ord4(symPtr) - ord4(symStartPtr);
|
|
tdisp^.tPtr := tp;
|
|
tp^.size := ReadLong;
|
|
tp^.saveDisp := 0;
|
|
tp^.isConstant := boolean(ReadByte);
|
|
tp^.kind := typeKind(ReadByte);
|
|
case tp^.kind of
|
|
scalarType: begin
|
|
tp^.baseType := baseTypeEnum(ReadByte);
|
|
tp^.cType := cTypeEnum(ReadByte);
|
|
end;
|
|
|
|
arrayType: begin
|
|
tp^.elements := ReadLong;
|
|
ReadType(tp^.aType);
|
|
end;
|
|
|
|
pointerType:
|
|
ReadType(tp^.pType);
|
|
|
|
functionType: begin
|
|
val := ReadByte;
|
|
tp^.varargs := odd(val >> 2);
|
|
tp^.prototyped := odd(val >> 1);
|
|
tp^.isPascal := odd(val);
|
|
tp^.toolnum := ReadWord;
|
|
tp^.dispatcher := ReadLong;
|
|
ReadType(tp^.fType);
|
|
ReadParm(tp^.parameterList);
|
|
end;
|
|
|
|
enumConst:
|
|
tp^.eval := ReadWord;
|
|
|
|
definedType:
|
|
ReadType(tp^.dType);
|
|
|
|
structType, unionType: begin
|
|
tp^.fieldList := nil;
|
|
ep := nil;
|
|
while ReadByte = 1 do begin
|
|
ip := ReadIdent;
|
|
if ep = nil then
|
|
tp^.fieldList := ip
|
|
else
|
|
ep^.next := ip;
|
|
ep := ip;
|
|
end; {while}
|
|
end;
|
|
|
|
otherwise: ;
|
|
|
|
end; {case}
|
|
end; {case 0}
|
|
|
|
1: begin {read a type displacement}
|
|
tdisp := typeDispList;
|
|
disp := ReadLong;
|
|
tp := nil;
|
|
while tdisp <> nil do
|
|
if tdisp^.saveDisp = disp then begin
|
|
tp := tdisp^.tPtr;
|
|
tdisp := nil;
|
|
end {if}
|
|
else
|
|
tdisp := tdisp^.next;
|
|
if tp = nil then begin
|
|
PurgeSymbols;
|
|
DestroySymbolFile;
|
|
TermError(12);
|
|
end; {if}
|
|
end; {case 1}
|
|
|
|
2: tp := sCharPtr;
|
|
3: tp := charPtr;
|
|
4: tp := intPtr;
|
|
5: tp := uIntPtr;
|
|
6: tp := longPtr;
|
|
7: tp := uLongPtr;
|
|
8: tp := floatPtr;
|
|
9: tp := doublePtr;
|
|
10: tp := extendedPtr;
|
|
11: tp := stringTypePtr;
|
|
12: tp := voidPtr;
|
|
13: tp := voidPtrPtr;
|
|
14: tp := defaultStruct;
|
|
15: tp := uCharPtr;
|
|
16: tp := shortPtr;
|
|
17: tp := uShortPtr;
|
|
end; {case}
|
|
end; {ReadType}
|
|
|
|
|
|
begin {ReadIdent}
|
|
sp := pointer(GMalloc(sizeof(identRecord)));
|
|
sp^.next := nil;
|
|
sp^.saved := false;
|
|
sp^.name := ReadString;
|
|
ReadType(sp^.itype);
|
|
format := ReadByte;
|
|
if format = 0 then begin
|
|
sp^.disp := 0;
|
|
sp^.bitDisp := 0;
|
|
sp^.bitSize := 0;
|
|
end {if}
|
|
else if format = 1 then begin
|
|
sp^.disp := ReadWord;
|
|
sp^.bitDisp := 0;
|
|
sp^.bitSize := 0;
|
|
end {else if}
|
|
else if format = 2 then begin
|
|
sp^.disp := ReadLong;
|
|
sp^.bitDisp := 0;
|
|
sp^.bitSize := 0;
|
|
end {else if}
|
|
else begin
|
|
sp^.disp := ReadLong;
|
|
sp^.bitDisp := ReadByte;
|
|
sp^.bitSize := ReadByte;
|
|
end; {else}
|
|
sp^.iPtr := nil;
|
|
sp^.state := stateKind(ReadByte);
|
|
sp^.isForwardDeclared := boolean(ReadByte);
|
|
sp^.class := tokenEnum(ReadByte);
|
|
sp^.storage := storageType(ReadByte);
|
|
ReadIdent := sp;
|
|
end; {ReadIdent}
|
|
|
|
|
|
begin {ReadSymbolTable}
|
|
sePtr := symPtr; {read the block length}
|
|
sePtr := pointer(ord4(sePtr) + ReadLong + 4);
|
|
while ord4(symPtr) < ord4(sePtr) do {process the symbols}
|
|
begin
|
|
Spin;
|
|
hashPtr := pointer(ord4(globalTable) + ReadWord*4);
|
|
sp := ReadIdent;
|
|
sp^.next := hashPtr^;
|
|
hashPtr^ := sp;
|
|
end; {while}
|
|
symPtr := sePtr;
|
|
end; {ReadSymbolTable}
|
|
|
|
|
|
function OpenSymbolFile (var fName: gsosOutString): boolean;
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{ Look for and open a symbol file }
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{ }
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{ parameters: }
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{ fName - source file name (var for efficiency) }
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{ }
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{ Returns: True if the file was found and opened, else false }
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{ }
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{ Notes: As a side effect, this subroutine creates the }
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{ pathname for the symbol file (symName). }
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var
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ffDCBGS: fastFileDCBGS; {fast file DCB}
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i: integer; {loop/index variable}
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begin {OpenSymbolFile}
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symName := fName; {create the symbol file name}
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i := symName.theString.size - 1;
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while not (symName.theString.theString[i] in [':', '/', '.']) do
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i := i-1;
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if symName.theString.theString[i] <> '.' then
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i := symName.theString.size;
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if i > maxPath-5 then
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i := maxPath-5;
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symName.theString.theString[i] := '.';
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symName.theString.theString[i+1] := 's';
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symName.theString.theString[i+2] := 'y';
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symName.theString.theString[i+3] := 'm';
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symName.theString.theString[i+4] := chr(0);
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symName.theString.size := i+3;
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if rebuildSymbols then begin {rebuild any existing symbol file}
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DestroySymbolFile;
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OpenSymbolFile := false;
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end {if}
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else begin
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with ffDCBGS do begin {read the symbol file}
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pCount := 14;
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action := 0;
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flags := $C000;
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pathName := @symName.theString;
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end; {with}
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FastFileGS(ffDCBGS);
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if ToolError = 0 then begin
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if (ffDCBGS.filetype = symFiletype) and (ffDCBGS.auxtype = symAuxtype) then
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OpenSymbolFile := true
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else begin
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OpenSymbolFile := false;
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PurgeSymbols;
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end; {else}
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symPtr := ffDCBGS.fileHandle^;
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symStartPtr := symPtr;
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symEndPtr := pointer(ord4(symPtr) + ffDCBGS.fileLength);
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end {if}
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else
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OpenSymbolFile := false;
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end; {else}
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end; {OpenSymbolFile}
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function SymbolVersion: integer;
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{ Read the symbol file version number }
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{ }
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{ Returns: version number }
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begin {SymbolVersion}
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SymbolVersion := ReadWord;
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end; {SymbolVersion}
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function SourceMatches: boolean;
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{ Make sure the token streams match up to the next include }
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type
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intPtr = ^integer; {for faster compares}
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var
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len, len2: longint; {size of stream to compare}
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match: boolean; {result flag}
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p1, p2: ptr; {work pointers}
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begin {SourceMatches}
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match := true;
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len := ReadLong;
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len2 := len;
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p1 := symPtr;
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p2 := chPtr;
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while len > 1 do
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if intPtr(p1)^ <> intPtr(p2)^ then begin
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match := false;
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len := 0;
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end {if}
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else begin
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len := len-2;
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p1 := pointer(ord4(p1)+2);
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p2 := pointer(ord4(p2)+2);
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end; {else}
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if len = 1 then
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if p1^ <> p2^ then
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match := false;
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if match then begin
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symPtr := pointer(ord4(symPtr)+len2);
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symChPtr := pointer(ord4(chPtr)+len2);
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while chPtr <> symChPtr do
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NextCh;
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end; {if}
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SourceMatches := match;
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end; {SourceMatches}
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begin {InitHeader}
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inhibitHeader := false; {don't block .sym files}
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if not ignoreSymbols then begin
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codeStarted := false; {code generation has not started}
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new(buffer); {allocate an output buffer}
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bufPtr := pointer(buffer);
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bufLen := bufSize;
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includeLevel := 0; {no nested includes}
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symChPtr := chPtr; {record initial source location}
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if OpenSymbolFile(fName) then begin {check for symbol file}
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if SymbolVersion = symFileVersion then begin
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done := EndOfSymbols; {valid file found - process it}
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if done then
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PurgeSymbols;
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typeDispList := nil;
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while not done do begin
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if DatesMatch then begin
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if SourceMatches then begin
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ReadMacroTable;
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ReadSymbolTable;
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ReadPragmas;
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if EndOfSymbols then begin
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done := true;
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PurgeSymbols;
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end; {if}
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end {if}
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else begin
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PurgeSymbols;
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DestroySymbolFile;
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done := true;
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end; {else}
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end {if}
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else begin
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PurgeSymbols;
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DestroySymbolFile;
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done := true;
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end; {else}
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end; {while}
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DisposeTypeDispList;
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saveSource := false;
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if ord4(symPtr) > ord4(symEndPtr) then begin
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PurgeSymbols;
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DestroySymbolFile;
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TermError(12);
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end; {if}
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end {if}
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else begin
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PurgeSymbols; {no file found}
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saveSource := true;
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end; {else}
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end {if}
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else
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saveSource := true;
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if saveSource then begin {start saving source}
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saveSource := OpenSymbols;
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savePragmas := [];
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DoDefaultsDotH;
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end; {if}
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end {if}
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else
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DoDefaultsDotH;
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end; {InitHeader}
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procedure StartInclude {name: gsosOutStringPtr};
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{ Marks the start of an include file }
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{ }
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{ Notes: }
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{ 1. Call this subroutine right after opening an include }
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{ file. }
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{ 2. Defined externally in Scanner.pas }
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var
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giRec: getFileInfoOSDCB; {GetFileInfoGS record}
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i: 1..8; {loop/index counter}
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begin {StartInclude}
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if inhibitHeader then
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TermHeader;
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if not ignoreSymbols then begin
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includeLevel := includeLevel+1;
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if saveSource then begin
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if not includeMark then begin
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includeMark := true;
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SetMark;
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end; {if}
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giRec.pCount := 7;
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giRec.pathname := pointer(ord4(name)+2);
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GetFileInfoGS(giRec);
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WriteLongString(pointer(giRec.pathname));
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for i := 1 to 8 do
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WriteByte(giRec.createDateTime[i]);
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for i := 1 to 8 do
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WriteByte(giRec.modDateTime[i]);
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end {if}
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else if not codeStarted then
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DestroySymbolFile;
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end; {if}
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end; {StartInclude}
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procedure TermHeader;
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{ Stop processing the header file }
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{ }
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{ Note: This is called when the first code-generating }
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{ subroutine is found, and again when the compile ends. It }
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{ closes any open symbol file, and should take no action if }
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{ called twice. }
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begin {TermHeader}
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if not ignoreSymbols then begin
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codeStarted := true;
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if saveSource then begin
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CloseSymbols;
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saveSource := false;
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dispose(buffer);
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end; {if}
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end; {if}
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end; {TermHeader}
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end.
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