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Date: Sun, 8 Feb 2004 09:49:59 -0500
Message-Id: <200402081449.i18EnxTv025955@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: <20040208012443.22711.00001133@mb-m19.aol.com> (sterten@aol.com)
Subject: Re: attaching source code to the ececutable
References: <200402071458 DOT i17EwZtr013586 AT envy DOT delorie DOT com> <20040208012443 DOT 22711 DOT 00001133 AT mb-m19 DOT aol DOT com>
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>  >So include a command line option to print the includes source.
> 
> are you saying, the source is included in the .exe by default ?

No, I'm saying that *you* can include the sources into the exe.

> Hmm, I could also put the source itself into a string and add it to
> the source before compiling it.

That's what bin2h does.

> to be sure that I understand this correctly :
> The exe-header of the executables always specify a length of 2048 bytes,
> and only 2048 bytes of the program are loaded to RAM and then

Yes.

> eventually later the .exe-file is opened again and additional
> code is loaded ?

Not eventually, immediately.  The 2048-byte program, when it runs,
reads the exe and loads the rest of the program into memory and runs
it.

> So, e.g. can I switch directories from within
> a DJGPP program or delete/rename/move/open the executable itself ?

You can do that, yes.  But by the time you do that, your program is
already loaded and running.

>  >It does.  That's how ALL djgpp programs work.  DJGPP programs are
>  >*already* a program with data attached to it.  So, you can't do what
>  >you want with DJGPP.
> 
> like attaching additional data ?

You can attach more data, but if you just read the EXE header and
expect *your* data to follow it, you will find the DJGPP executable
instead.