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Re: gcc and small command line tasks
- From: James Nickson <jaynicks at earthlink dot net>
- To: "Nelson H. F. Beebe" <beebe at math dot utah dot edu>,gcc-help at gcc dot gnu dot org
- Cc: beebe at math dot utah dot edu
- Date: Fri, 12 Aug 2005 12:09:23 -0400
- Subject: Re: gcc and small command line tasks
Thank you Dr. Beebe, got it in one.
I did not think so much as 400K would be needed for a printf (laughing at
myself again).
Thanks all,
Jay
At 06:45 AM 8/12/05 -0600, Nelson H. F. Beebe wrote:
>James Nickson <jaynicks@earthlink.net> asks why a hello-world test
>produced a 471K executable program.
>
>I suspect that what Jack was seeing in the simple hello.c test is the
>difference between static and dynamic linking.
>
>For example, on Sun Solaris 8:
>
> % gcc -o hello hello.c
> % ls -l hello
> -rwxrwxr-x 1 beebe staff 6196 Aug 12 06:38 hello
>
> % gcc -static -o hello hello.c
> % ls -l hello
> -rwxrwxr-x 1 beebe staff 363296 Aug 12 06:39 hello
>
>While dynamic linking is the default on all modern operating systems,
>there are cases (e.g., CD-ROM distribution of software and standalone
>boot and rescue disks) where static linking is required to avoid
>dependencies on shared libraries that might be in different locations
>on some remote system than on the system where the executable was
>built, or might be corrupted (consider what happens to your Unix
>system if /lib/libc.so.1 develops a bad disk block: virtually nothing
>can run).
>
>
>---------------------------------------------------------------------------
----
>- Nelson H. F. Beebe Tel: +1 801 581 5254
-
>- University of Utah FAX: +1 801 581 4148
-
>- Department of Mathematics, 110 LCB Internet e-mail:
beebe@math.utah.edu -
>- 155 S 1400 E RM 233 beebe@acm.org
beebe@computer.org -
>- Salt Lake City, UT 84112-0090, USA URL:
http://www.math.utah.edu/~beebe -
>---------------------------------------------------------------------------
----
>
=============================================
James Nickson jaynicks@lccdigital.com
19 O.Cheq.Nk.Rd., Wellfleet, MA 508.349.2422