Subj : Re: How can I make a very large program run?
To   : borland.public.cpp.borlandcpp
From : Bob Gonder <notbg@notmindspring.invalid>
Date : Fri Feb 13 2004 04:22 pm

Richard Hufford wrote:

>> And your Stack! A Stack of 5a8 seems rather paultry to me.
>
>Surely, my stack is bigger than that!  I haven't had much success reading
>Win32 maps.  That BSS is the stack?  My DEF file has a STACKSIZE and a
>HEAPSIZE of 2000000.  Since changing this number to 1800000 in both
>statements made the problem go away, I did some reading about it.  Although

Mine is
HEAPSIZE       1265536,1132768
STACKSIZE      1265536,1132768

>Because Debug is off, could it be that all the code is going into one
>segment and some segment limit is reached?

This _is_ a 32 bit Windows app, right?
32bit Win apps only have _one_ (4GB) segment.
Everything (data, code,stack,dll's) must fit in 2GB.
The upper 2 GB is reserved for MS.
Also, they aren't "segments" anymore, but "selectors".
You would normally have 3 selectors: Code, Data and Stack.
They all "point" to the same addresses, just have different access
abilities.  So, for instance, if you have the Data address of a
variable, you could access it through SS:Addr or CS:Addr or the normal
DS:Addr.  It's all the same, but you'd have dificulties storing a
value at CS:Addr or executing at SS:Addr.
(There's a 4th selector, but that's another topic)

One of the things the Full Debug probably does is turn off in-line
code (turning them into functions calls).

Might you be bumping up against a dll that was "based" too low for
you? They should be relocatable so they can load above your app.
Are you compressing the exe? Wonder if the decompress might overwrite
a loaded dll?

Well, if the bandaides run out, you can just claim that the app
requires Win-64 and a terabyte of ram.

.