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From: Georg Bauhaus <sb463ba@l1-hrz.uni-duisburg.de>
Newsgroups: comp.lang.ada
Subject: Re: Hello World 217Kb ?
Date: Tue, 23 Nov 2004 20:27:34 +0000 (UTC)
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stephane richard <stephane.richard@verizon.net> wrote:
: 
: a whopping 217Kb (without debug information)...am I doing something wrong, 
: or is this the actual size of a basic exe file produced by Ada?

when I use the same compiler for translating a function that
returns an uninitialised integer variable, I get
the following sizes (-O, -static, -gnato):

Ada executable: ret_code
C executable: a.out

-rwxr-xr-x  1 georg staff   568326 Nov 23 21:13 ret_code
-rwxr-xr-x  1 georg staff   471287 Nov 23 21:14 a.out

shared linking gives

-rwxr-xr-x  1 georg staff    17191 Nov 23 21:17 ret_code
-rwxr-xr-x  1 georg staff    11938 Nov 23 21:17 a.out

After running strip, I get

-rwxr-xr-x  1 staff   486980 Nov 23 21:20 ret_code
-rwxr-xr-x  1 staff   421552 Nov 23 21:20 a.out

and

-rwxr-xr-x  1 staff     5520 Nov 23 21:21 ret_code
-rwxr-xr-x  1 staff     2856 Nov 23 21:21 a.out

respectively. This is GCC 3.4.2. The difference in size seems to
vary with compiler versions. For example, gcc 2.8.1 produces
a smaller difference.


with Interfaces.C; use Interfaces;

function ret_code return C.int is
   uninitialised: C.int;
begin
   return uninitialised;
end ret_code;

int main()
{
  int uninitialised;
  return uninitialised;
}


-- Georg