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To: Ned Ludd <solar@g.o>
From: "Peter S. Mazinger" <ps.m@...>
Subject: Re: some uClibc experience
Date: Mon, 17 Nov 2003 01:46:49 +0100 (CET)
On 12 Nov 2003, Ned Ludd wrote:

> On Wed, 2003-11-12 at 16:31, Peter S. Mazinger wrote:
> > There are problems building some of the binaries with propolice enabled 
> > gcc, mainly the .hidden support in binutils has to be "hidden" from gcc, 
> > but as I can see (read), the glibc version does not work flawlessly 
> > either.
> > 
> Have you successfully used ssp with uclibc?
It worked (somehow, not quite correct, and some packages where not 
rebuildable) at the time where uClibc had support for LIBGCC_FUNCTIONS 
(adding functions from libgcc to libc) This was the only way I got a 
system running it (__guard and __smash... where added to libc). Since then 
I cannot modify buildroot so that I get a system running, segfaults on all 
the line (tested only with gcc-3.3.x and protector 3.3-5). I think the 
solution would be to add the needed functions to uClibc (and remove them 
from libgcc!!!).

> > 1. UPX works too (I have built 1.91-cvs), the compression is not so good, 
> > as with prebuilt binaries (NRV is not free), but works also on kernel 
> > images (bzImage)
> Would this have a big advantage over say cramfs support? I would assume
> that most compressed file systems or executable packers also tend to use
> more memory on access whihc could lead to an ever slower system.
UPX developer says, that the uncompression does not cost much, didn't 
really tested it. I do not have cramfs experience.

> > 3. The uClibc toolchain is not uptodate, but the buildroot is already used 
> > by the developers themselves to create development images, so the infos on 
> > cross-building are there and tested already. 
> Please take a look at the 0.9.22 ebuild in portage. The wrappers for
> gcc,c++,ld,ldd,ar,etc are all missing and I don't know why. I've checked
> the detail/changelogs on the site and see no mention of this
> what so ever.
The wrappers are for ever gone. Use the procedure from buildroot (the 
toolchain building from here).

Peter S. Mazinger <ps.m@...>   ID: 0xA5F059F2    NIC: IXUYHSKQLI
Key fingerprint = 92A4 31E1 56BC 3D5A 2D08  BB6E C389 975E A5F0 59F2

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Re: some uClibc experience
-- Ned Ludd
Re: some uClibc experience
-- Ned Ludd
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