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127 lines
2.9 KiB
ObjectPascal
127 lines
2.9 KiB
ObjectPascal
{
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$Id$
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}
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unit initc;
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interface
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{$LINKLIB cygwin}
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{$linklib kernel32}
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{ this unit is just ment to run
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startup code to get C code to work correctly PM }
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implementation
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uses
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windows;
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{$i textrec.inc}
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procedure cygwin_crt0(p : pointer);cdecl;external;
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{
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procedure do_global_dtors;cdecl;external;
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this does not work because
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do_global_dtors is a static C function PM
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it is inserted into the atexit chain,
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but how do we call this from FPC ???
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it seems to be done in exit function
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but that one ends with _exit that is system dependent !! }
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{ avoid loading of cygwin _exit code
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so that exit returns
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apparently this is not enough anymore
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use longjmp instead PM }
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var
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entryjmpbuf,exitjmpbuf : jmp_buf;
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const
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exitjmpbufset : boolean = false;
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procedure _exit(status : longint);cdecl;
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begin
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if exitjmpbufset then
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longjmp(exitjmpbuf,1)
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else
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RunError(status);
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end;
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procedure C_exit(status : longint);popstack;external name '_exit';
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const
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STD_INPUT_HANDLE = $fffffff6;
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STD_OUTPUT_HANDLE = $fffffff5;
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STD_ERROR_HANDLE = $fffffff4;
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procedure UpdateStdHandle(var t:TextRec;var stdHandle:longint;newHandle:longint);
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{ Check if the stdHandle is the same as the one in the TextRec, then
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also update the TextRec }
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begin
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if t.Handle=stdHandle then
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t.Handle:=newHandle;
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stdHandle:=newHandle;
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end;
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function entry : longint;
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begin
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longjmp(entryjmpbuf,1);
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entry:=0;
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end;
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var
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ConsoleMode: DWORD;
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ConsoleModeValid : boolean;
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initialization
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ConsoleModeValid:=GetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), @ConsoleMode);
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if setjmp(entryjmpbuf)=0 then
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begin
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cygwin_crt0(@entry);
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end;
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if ConsoleModeValid then
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SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), ConsoleMode);
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{ Reinitialize std handles that can be changed }
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UpdateStdHandle(TextRec(Input),StdInputHandle,GetStdHandle(STD_INPUT_HANDLE));
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UpdateStdHandle(TextRec(Output),StdOutputHandle,GetStdHandle(STD_OUTPUT_HANDLE));
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TextRec(StdOut).Handle:=StdOutputHandle;
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UpdateStdHandle(TextRec(Stderr),StdErrorHandle,GetStdHandle(STD_ERROR_HANDLE));
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finalization
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{ should we pass exit code ?
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its apparently only used by _exit so it doesn't matter PM }
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if setjmp(exitjmpbuf)=0 then
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begin
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exitjmpbufset:=true;
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{ C_exit(errorcode);
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this code does not work correctly anymore
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C function _exit is not called at end of exit function
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thus the code of exit does not return at all
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disabled PM }
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end;
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end.
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{
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$Log$
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Revision 1.6 2001-09-30 21:46:34 peter
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* merged consolemode fix
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Revision 1.5 2001/09/22 11:15:31 peter
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* merged v10 version for exit fixes
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Revision 1.1.2.4 2001/09/19 15:23:39 pierre
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* work for newer cygwin version
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Revision 1.1.2.3 2001/04/23 01:15:44 carl
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- removed unused and useless ifdef
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Revision 1.1.2.2 2001/04/02 13:30:14 pierre
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* Remove call to C exit procedure as it does not return anymore
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Revision 1.1.2.1 2000/12/30 17:49:48 peter
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* update std handles after initializing c
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}
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