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From: Rugxulo <rugxulo AT gmail DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: TSR of go32-v2.exe or TSR for unstubbed COFF executable loader 
	available?
Date: Sun, 30 May 2010 19:08:47 -0700 (PDT)
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Hi,

On May 30, 4:20=A0pm, "Rod Pemberton" <do_not_h DOT  DOT  DOT  AT notreplytome DOT cmm>
wrote:
>
> "HXLdr32: this is a TSR program which will hook DOS interrupt 21h and
> check all programs to be launched if they are PE binaries. If this is tru=
e,
> DPMILD32 will be started to run the program.
>
> I think I would've preferred a 16-bit Int 21h TSR with the functionality =
of
> DJGPP's go32-v2.exe to load and run unstubbed COFF executables over
> stubbed COFF...

I think (??) go32-v2.exe doesn't do much unless you want to run v2 and
v1 binaries under each other (rare). It even still relies on CWSDPMI,
I think, so it wouldn't help anyways, you'd still need DPMI. (I think
DPMILD16/DPMILD32 do mostly the same stuff as HDPMI16/HDPMI32.) In
short, I never use it.

The stub is only 2 kb, so it's not big. It's not wasting much space.
The built-in default globbing alone is like 6 kb, and printf (or
_doprnt, honestly) isn't exactly optimal either. Oh, and mkdir using
xstat bringing in ctime unnecessarily (12 kb unstripped) is a bigger
issue (as I found out a year ago). GCC -Os could be much smaller
output too. However, long story short, nobody has time to fix all
that, and nobody cares. "HDs are cheap enough." (Ugh, I dare the next
person who says that to create a permanent 1 GB file saying it 100000x
without getting annoyed.)

I'm not at home, so my compiler choices are limited, but here's what
GCC 3.4.4, DJGPP 2.03p2 results in:

#include <stdio.h>
int main() { return 0; }

gcc -s -Os -march=3Di386 test.c -o test.exe

-rwxr-xr-x    1 Owner    root        43520 May 30 20:53 test.exe

So the tiny stub is the least of (y)our problems. Check the map file
to see where it all goes.   ;-)