On Fri, Mar 07, 2003, Oron Peled wrote about "Re: [Haifux] Huge file with static linking": > Yes, but that's what we have dietlibc for. Look: > > [EMAIL PROTECTED] ~/tmp]$ gcc -o t t.c > [EMAIL PROTECTED] ~/tmp]$ ls -l t > -rwxr-xr-x 1 oron users 11348 Mar 7 09:01 > [EMAIL PROTECTED] ~/tmp]$ diet gcc -o t t.c > [EMAIL PROTECTED] ~/tmp]$ ls -l t > -rwxr-xr-x 1 oron users 1728 Mar 7 09:02
Neither of these look bloated at all - in fact they are rather tiny (and that's even without you stripping them). A more meaningful comparison would be with "-static". > So most of the bloat is in glibc (it has to support a lot of > optional code [e.g: nsswitch, resolving etc.]) When a code only uses puts() and stdout, the code doesn't strictly need to support resolving, threading, and things like that. But the problem begins when the same object-file that defines stdout also uses, say, malloc; Malloc supports multithreading so it uses pthreads routines; These (or other) routines can show message strings so they support locales and printf, and the list grows and grows from here. In the old days (say, 10 years ago), library designers tried very hard for this not to happen. If you used only puts, "printf" would not get into your code. If you used only stdout much of the stdio code (fopen, fclose, etc.) would not get into your code. Nowadays, people stopped caring about this issue. It's not because a 24-fold increase in code size doesn't bother anybody (it surely does! 0.5 MB for a "hello world" program is very large even at today's standards, and hence the original poster's question) - it's because noadays people almost exclusively use shared libraries, so this size increase does not happen. I never tried the "diet libc" you mentioned. I assume, from its name, that it indeed results in smaller code :) -- Nadav Har'El | Friday, Mar 7 2003, 3 Adar II 5763 [EMAIL PROTECTED] |----------------------------------------- Phone: +972-53-245868, ICQ 13349191 |I put a dollar in one of those change http://nadav.harel.org.il |machines. Nothing changed. -------------------------------------------------------------------------- Haifa Linux Club Mailing List (http://www.haifux.org) To unsub send an empty message to [EMAIL PROTECTED]
