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To:	cygwin AT cygwin DOT com, "Hannu E K Nevalainen" <_garbage_collector_ AT telia DOT com>
Subject:	Re: executable = exe + data
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From:	Sam Steingold <sds AT gnu DOT org>
In-Reply-To:	<JAEBIEIILHAGMJNFODIEOENBCCAA._garbage_collector_@telia.com> (Hannu E. K. Nevalainen's message of "Sun, 1 Jan 2006 19:29:33 +0100")
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Date:	Sun, 01 Jan 2006 13:32:01 -0500
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> * Hannu E K Nevalainen <_tneontr_pbyyrpgbe_ AT gryvn DOT pbz> [2006-01-01 19:29:33 +0100]:
>
> Sam S wrote:
>>> * Brian Dessent <blip> [2005-12-31 15:46:50 -0800]:
>>> 
>>> Sam Steingold wrote:
>>> 
>>>> Is it possible?
>>>> 
>>>> simply put, it it possible to write something like this:
>>>> 
>>>> int main () {
>>>>   size_t my_length;
>>>>   <some magic>
>>>>   printf("exe size=%lld\n",my_length);
>>>>   return 0;
>>>> }
>>> 
>>> All the methods mentioned so far are essentially hacks working
>>> against the linker, doing stuff behind its back.  Why not go with
>>> the flow? Put your data in its own section, and write a linker
>>> script to handle that section in the desired way.  You can access
>>> the address by referencing the linker script variables in your
>>> source code.  See section 3 of the ld manual, particularly 3.5.3. 
>>> This should work on any platform that uses ld.
>> 
>> the problems with this is that the "data" that is being appended is
>> not known at link time and appending it may not require C tools
>> (ld/gcc &c). 
>
> Then your options seems to have shrunk to a "launcher" that basicly does
>
>   system("lisp.exe -M lispinit.mem")

:-)

this is what we have been doing for well over 15 years

> Can you elaborate on _why_ the "single executable" is so important?

It is not important to _me_, but this is a recurring request by lisp
newbies who ask something like "how do I create an executable from my
lisp application, similar to C and C++?"



-- 
Sam Steingold (http://www.podval.org/~sds) running w2k
http://truepeace.org http://www.mideasttruth.com/ http://www.dhimmi.com/
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Garbage In, Gospel Out


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