mirror of
https://github.com/byteworksinc/ORCA-C.git
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5d7c002819
This would occur if the macro had already been saved in the sym file and the #undef occurred before a subsequent #include that was also recorded in the sym file. The solution is simply to terminate sym file generation if an #undef of an already-saved macro is encountered.
Here is an example showing the problem:
test.c:
#include "test1.h"
#undef x
#include "test2.h"
int main(void) {
#ifdef x
return x;
#else
return y;
#endif
}
test1.h:
#define x 27
test2.h:
#define y 6
2071 lines
54 KiB
ObjectPascal
2071 lines
54 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 = 22; {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}
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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));
|
|
WriteByte(ord(token.prefix));
|
|
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(@pragmaKeepFile^.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)
|
|
| (ord(fastMath) << 7));
|
|
|
|
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(looseTypeChecks) << 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));
|
|
|
|
p_fenv_access: WriteByte(ord(fenvAccess));
|
|
|
|
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 = utf16StringTypePtr then
|
|
WriteByte(18)
|
|
else if tp = utf32StringTypePtr then
|
|
WriteByte(19)
|
|
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(tqConst in tp^.qualifiers)
|
|
| (ord(tqVolatile in tp^.qualifiers) << 1)
|
|
| (ord(tqRestrict in tp^.qualifiers) << 2));
|
|
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);
|
|
WriteByte(ord(tp^.constMember));
|
|
WriteByte(ord(tp^.flexibleArrayMember));
|
|
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);
|
|
WriteLongString(pointer(@infoStringGS.theString));
|
|
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;
|
|
token.prefix := charStrPrefixEnum(ReadByte);
|
|
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
|
|
lsPtr := ReadLongString;
|
|
if liDCBGS.kFlag = 0 then begin
|
|
liDCBGS.kFlag := 1;
|
|
outFileGS.theString.size := lsPtr^.length;
|
|
for i := 1 to outFileGS.theString.size do
|
|
outFileGS.theString.theString[i] := lsPtr^.str[i];
|
|
end; {if}
|
|
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);
|
|
fastMath := odd(val >> 7);
|
|
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;
|
|
looseTypeChecks := 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);
|
|
|
|
p_fenv_access: fenvAccess := boolean(ReadByte);
|
|
|
|
otherwise: begin
|
|
PurgeSymbols;
|
|
DestroySymbolFile;
|
|
TermError(12);
|
|
end;
|
|
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;
|
|
val := ReadByte;
|
|
if odd(val) then
|
|
tp^.qualifiers := [tqConst]
|
|
else
|
|
tp^.qualifiers := [];
|
|
if odd(val >> 1) then begin
|
|
tp^.qualifiers := tp^.qualifiers + [tqVolatile];
|
|
volatile := true;
|
|
end; {if}
|
|
if odd(val >> 2) then
|
|
tp^.qualifiers := tp^.qualifiers + [tqRestrict];
|
|
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}
|
|
tp^.constMember := boolean(ReadByte);
|
|
tp^.flexibleArrayMember := boolean(ReadByte);
|
|
end;
|
|
|
|
enumType: ;
|
|
|
|
otherwise: begin
|
|
PurgeSymbols;
|
|
DestroySymbolFile;
|
|
TermError(12);
|
|
end;
|
|
|
|
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;
|
|
18: tp := utf16StringTypePtr;
|
|
19: tp := utf32StringTypePtr;
|
|
|
|
otherwise: begin
|
|
PurgeSymbols;
|
|
DestroySymbolFile;
|
|
TermError(12);
|
|
end;
|
|
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;
|
|
|
|
{ Look for and open a symbol file }
|
|
{ }
|
|
{ parameters: }
|
|
{ fName - source file name (var for efficiency) }
|
|
{ }
|
|
{ Returns: True if the file was found and opened, else false }
|
|
{ }
|
|
{ Notes: As a side effect, this subroutine creates the }
|
|
{ pathname for the symbol file (symName). }
|
|
|
|
var
|
|
ffDCBGS: fastFileDCBGS; {fast file DCB}
|
|
i: integer; {loop/index variable}
|
|
|
|
begin {OpenSymbolFile}
|
|
symName := fName; {create the symbol file name}
|
|
i := symName.theString.size - 1;
|
|
while not (symName.theString.theString[i] in [':', '/', '.']) do
|
|
i := i-1;
|
|
if symName.theString.theString[i] <> '.' then
|
|
i := symName.theString.size;
|
|
if i > maxPath-5 then
|
|
i := maxPath-5;
|
|
symName.theString.theString[i] := '.';
|
|
symName.theString.theString[i+1] := 's';
|
|
symName.theString.theString[i+2] := 'y';
|
|
symName.theString.theString[i+3] := 'm';
|
|
symName.theString.theString[i+4] := chr(0);
|
|
symName.theString.size := i+3;
|
|
if rebuildSymbols then begin {rebuild any existing symbol file}
|
|
DestroySymbolFile;
|
|
OpenSymbolFile := false;
|
|
end {if}
|
|
else begin
|
|
with ffDCBGS do begin {read the symbol file}
|
|
pCount := 14;
|
|
action := 0;
|
|
flags := $C000;
|
|
pathName := @symName.theString;
|
|
end; {with}
|
|
FastFileGS(ffDCBGS);
|
|
if ToolError = 0 then begin
|
|
if (ffDCBGS.filetype = symFiletype) and (ffDCBGS.auxtype = symAuxtype) then
|
|
OpenSymbolFile := true
|
|
else begin
|
|
OpenSymbolFile := false;
|
|
PurgeSymbols;
|
|
end; {else}
|
|
symPtr := ffDCBGS.fileHandle^;
|
|
symStartPtr := symPtr;
|
|
symEndPtr := pointer(ord4(symPtr) + ffDCBGS.fileLength);
|
|
end {if}
|
|
else
|
|
OpenSymbolFile := false;
|
|
end; {else}
|
|
end; {OpenSymbolFile}
|
|
|
|
|
|
function SymbolFileIsUsable: boolean;
|
|
|
|
{ Read the symbol file header to check if it is usable }
|
|
{ }
|
|
{ Returns: True if the symbol file is usable, false if not }
|
|
|
|
label 1;
|
|
|
|
var
|
|
ccPtr: longStringPtr; {cc= string recorded in symbol file}
|
|
i: integer; {loop counter}
|
|
|
|
begin {SymbolFileIsUsable}
|
|
SymbolFileIsUsable := false;
|
|
if ReadWord = symFileVersion then begin
|
|
ccPtr := ReadLongString;
|
|
if ccPtr^.length = infoStringGS.theString.size then begin
|
|
for i := 1 to infoStringGS.theString.size do
|
|
if ccPtr^.str[i] <> infoStringGS.theString.theString[i] then
|
|
goto 1;
|
|
SymbolFileIsUsable := true;
|
|
end; {if}
|
|
end; {if}
|
|
1:
|
|
end; {SymbolFileIsUsable}
|
|
|
|
|
|
function SourceMatches: boolean;
|
|
|
|
{ Make sure the token streams match up to the next include }
|
|
|
|
type
|
|
intPtr = ^integer; {for faster compares}
|
|
|
|
var
|
|
len, len2: longint; {size of stream to compare}
|
|
match: boolean; {result flag}
|
|
p1, p2: ptr; {work pointers}
|
|
|
|
begin {SourceMatches}
|
|
match := true;
|
|
len := ReadLong;
|
|
len2 := len;
|
|
p1 := symPtr;
|
|
p2 := chPtr;
|
|
while len > 1 do
|
|
if intPtr(p1)^ <> intPtr(p2)^ then begin
|
|
match := false;
|
|
len := 0;
|
|
end {if}
|
|
else begin
|
|
len := len-2;
|
|
p1 := pointer(ord4(p1)+2);
|
|
p2 := pointer(ord4(p2)+2);
|
|
end; {else}
|
|
if len = 1 then
|
|
if p1^ <> p2^ then
|
|
match := false;
|
|
if match then begin
|
|
symPtr := pointer(ord4(symPtr)+len2);
|
|
symChPtr := pointer(ord4(chPtr)+len2);
|
|
while chPtr <> symChPtr do
|
|
NextCh;
|
|
end; {if}
|
|
SourceMatches := match;
|
|
end; {SourceMatches}
|
|
|
|
|
|
begin {InitHeader}
|
|
inhibitHeader := false; {don't block .sym files}
|
|
if not ignoreSymbols then begin
|
|
codeStarted := false; {code generation has not started}
|
|
new(buffer); {allocate an output buffer}
|
|
bufPtr := pointer(buffer);
|
|
bufLen := bufSize;
|
|
includeLevel := 0; {no nested includes}
|
|
symChPtr := chPtr; {record initial source location}
|
|
if OpenSymbolFile(fName) then begin {check for symbol file}
|
|
if SymbolFileIsUsable then begin
|
|
done := EndOfSymbols; {valid file found - process it}
|
|
if done then
|
|
PurgeSymbols;
|
|
typeDispList := nil;
|
|
while not done do begin
|
|
if DatesMatch then begin
|
|
if SourceMatches then begin
|
|
ReadMacroTable;
|
|
ReadSymbolTable;
|
|
ReadPragmas;
|
|
if EndOfSymbols then begin
|
|
done := true;
|
|
PurgeSymbols;
|
|
end; {if}
|
|
end {if}
|
|
else begin
|
|
PurgeSymbols;
|
|
DestroySymbolFile;
|
|
done := true;
|
|
end; {else}
|
|
end {if}
|
|
else begin
|
|
PurgeSymbols;
|
|
DestroySymbolFile;
|
|
done := true;
|
|
end; {else}
|
|
end; {while}
|
|
DisposeTypeDispList;
|
|
saveSource := false;
|
|
if ord4(symPtr) > ord4(symEndPtr) then begin
|
|
PurgeSymbols;
|
|
DestroySymbolFile;
|
|
TermError(12);
|
|
end; {if}
|
|
end {if}
|
|
else begin
|
|
PurgeSymbols; {no file found}
|
|
saveSource := true;
|
|
end; {else}
|
|
end {if}
|
|
else
|
|
saveSource := true;
|
|
if saveSource then begin {start saving source}
|
|
saveSource := OpenSymbols;
|
|
savePragmas := [];
|
|
DoDefaultsDotH;
|
|
end; {if}
|
|
end {if}
|
|
else
|
|
DoDefaultsDotH;
|
|
end; {InitHeader}
|
|
|
|
|
|
procedure StartInclude {name: gsosOutStringPtr};
|
|
|
|
{ Marks the start of an include file }
|
|
{ }
|
|
{ Notes: }
|
|
{ 1. Call this subroutine right after opening an include }
|
|
{ file. }
|
|
{ 2. Defined externally in Scanner.pas }
|
|
|
|
var
|
|
giRec: getFileInfoOSDCB; {GetFileInfoGS record}
|
|
i: 1..8; {loop/index counter}
|
|
|
|
begin {StartInclude}
|
|
if inhibitHeader then
|
|
TermHeader;
|
|
if not ignoreSymbols then begin
|
|
includeLevel := includeLevel+1;
|
|
if saveSource then begin
|
|
if not includeMark then begin
|
|
includeMark := true;
|
|
SetMark;
|
|
end; {if}
|
|
giRec.pCount := 7;
|
|
giRec.pathname := pointer(ord4(name)+2);
|
|
GetFileInfoGS(giRec);
|
|
WriteLongString(pointer(giRec.pathname));
|
|
for i := 1 to 8 do
|
|
WriteByte(giRec.createDateTime[i]);
|
|
for i := 1 to 8 do
|
|
WriteByte(giRec.modDateTime[i]);
|
|
end {if}
|
|
else if not codeStarted then
|
|
DestroySymbolFile;
|
|
end; {if}
|
|
end; {StartInclude}
|
|
|
|
|
|
procedure TermHeader;
|
|
|
|
{ Stop processing the header file }
|
|
{ }
|
|
{ Note: This is called when the first code-generating }
|
|
{ subroutine is found, and again when the compile ends. It }
|
|
{ closes any open symbol file, and should take no action if }
|
|
{ called twice. }
|
|
|
|
begin {TermHeader}
|
|
if not ignoreSymbols then begin
|
|
codeStarted := true;
|
|
if saveSource then begin
|
|
CloseSymbols;
|
|
saveSource := false;
|
|
dispose(buffer);
|
|
end; {if}
|
|
end; {if}
|
|
end; {TermHeader}
|
|
|
|
end.
|