Re: size of kernel after gcc4.2 upgrade

From: Alexander Leidinger <Alexander_at_Leidinger.net>
Date: Fri, 25 May 2007 13:54:16 +0200
Quoting Ruslan Ermilov <ru_at_FreeBSD.org> (from Fri, 25 May 2007  
14:52:03 +0400):

> On Fri, May 25, 2007 at 11:51:46AM +0200, Roman Divacky wrote:
>> hi
>>
>> I just noticed that
>> spravci ~# ls -l /boot/kernel*/kernel
>> -r-xr-xr-x  1 root  wheel  3389971 May 18 12:03 /boot/kernel.old/kernel*
>> -r-xr-xr-x  1 root  wheel  5211345 May 25 11:47 /boot/kernel/kernel*
>>
>> ie. after gcc42 import the kernel size increased roughly by 60% thats
>> a little too much. is there any forgotten option or something that
>> makes the kernel grow so big?
>>
> My numbers are different (1% for the GENERIC kernel, and this
> is with all code changes in-between):
>
> -r-xr-xr-x  1 root  wheel  8942239 Apr 11 16:20 kernel.old/kernel
> -r-xr-xr-x  1 root  wheel  9035021 May 24 16:23 kernel/kernel
>
> bde_at_ also reported a 1% code bloat in another thread, so I think
> you should look at your own changes.

My minimal kernel without additional changes shows:
-r-xr-xr-x  1 root  wheel   2.5M  7 Apr 17:22 /boot/kernel.old/kernel*
-r-xr-xr-x  1 root  wheel   8.1M  7 Apr 17:22 /boot/kernel.old/kernel.symbols*
-r-xr-xr-x  1 root  wheel   3.9M 24 Mai 18:46 /boot/kernel/kernel*
-r-xr-xr-x  1 root  wheel    14M 24 Mai 18:46 /boot/kernel/kernel.symbols*

But this is with debugging (-g) enabled. How's the .symbols generated?  
Can there be some new stuff in the kernel which needs to be handled in  
the .symbols file generation?

Bye,
Alexander.

-- 
The relative importance of files depends on their cost
in terms of the human effort needed to regenerate them.
		-- T. A. Dolotta

http://www.Leidinger.net    Alexander _at_ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org       netchild _at_ FreeBSD.org  : PGP ID = 72077137
Received on Fri May 25 2007 - 09:54:38 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:39:10 UTC