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Date: Fri, 6 Nov 2009 12:32:29 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: small exe size increase from 1.7.0-62 to -63
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On Nov  6 06:18, Andy Koppe wrote:
> A test with an empty main compiled using gcc-4 under cygwin-1.7.0-63
> has a size of 6.5K. After downgrading to 1.7.0-62, without changing
> anything else, the size goes down to 5.0K.
> 
> $ cat test.c
> int main(void)
> {
>   return 0;
> }
> $ gcc test.c -Os -s
> 
> Looking at objdump differences, both code and data size have gone up:
> 
> < SizeOfCode            00000800
> < SizeOfInitializedData 00001000
> ---
> > SizeOfCode            00000e00
> > SizeOfInitializedData 00001600
> 
> And we're pulling in a bunch of additional functions from cygwin1.dll
> and kernel32.dll:
> 
> >       515c      666  abort
> >       5170      788  cygwin_create_path
> >       51b0      812  dll_dllcrt0
> >       51d4     1221  memcpy
> >       51ec     1620  strlen
> >       51f8     1742  vsnprintf
> 
> >       5238      336  GetModuleFileNameW
> >       5274      388  GetStdHandle
> >       5284      798  VirtualProtect
> >       5296      801  VirtualQuery
> >       52a6      827  WriteFile
> 
> Obviously 1.5K isn't much of a concern, but is this expected?

It's a result of the new pseudo reloc v2 support.  Probably Chuck can
explain this better.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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