Re: [uml-devel] Re: [uml-user] SuSE 9.1 host + 2.4.26 Kernel + GCC 3.3.3 similarities to 2.6.6!?

[uml <um...@do...>]

OOps.. can't 'strip linux' before using nm... heh

It was 786K so I compressed it to 168K and it's available at
https://p0lar.dot1q.net/theChanges.bz2

I compiled both cleanly with the only change I made from the default =
config
was turning on module support for both.

Here's a quick transcript of the procedure:

cd /tmp
rm -rf /tmp/linux-2.6.6
tar -jxvf linux-2.6.6.tar.bz2
cd linux-2.6.6
bzcat ../uml-patch-2.6.6-1.bz2 | patch -p1
make menuconfig ARCH=3Dum
perl -e 's/-O2/-O2 -fno-unit-at-a-time/' -p -i.bak Makefile arch/um/M=
akefile
make linux modules ARCH=3Dum
cp linux ../uml/linux-2.6.6-working
cd /tmp
rm -rf /tmp/linux-2.6.6
tar -jxvf linux-2.6.6.tar.bz2
cd linux-2.6.6
bzcat ../uml-patch-2.6.6-1.bz2 | patch -p1
make menuconfig ARCH=3Dum
make linux modules ARCH=3Dum
cp linux ../uml/linux-2.6.6-broken
cd /tmp/uml
nm linux-2.6.6-broken > broken.list
nm linux-2.6.6-working > working.list
diff -u broken.list working.list > theChanges
bzip2 theChanges

Let me know if you need anything else!

----- Original Message -----=20
=46rom: "BlaisorBlade" <bla...@ya...>
To: "uml" <um...@do...>; "uml-user"
<use...@li...>;
<use...@li...>
Cc: "roland" <for...@gm...>
Sent: Thursday, June 17, 2004 2.46 PM
Subject: Re: [uml-devel] Re: [uml-user] SuSE 9.1 host + 2.4.26 Kernel=
 + GCC
3.3.3 similarities to 2.6.6!?


Alle 20:10, gioved=EC 17 giugno 2004, hai scritto:
> Ah, I only tried adding the -fno-unit-at-a-time switch to -O2.. it =
seemed
> to work quite cleanly, and as well as expected by simply replacing =
the -O2
> with -O1 as I was previously doing.

Wow! Now we know what to do... thanks a lot!

> I'm really unsure about the attribute_used declaration, but if you =
can
tell
> me how or what to test, I'm more than willing to give it a few doze=
n
> recompiles.

Well, thanks a lot for your effort and availability... but the
attribute_used
thing will be a series of little code changes, adding attribute_used =
to a
lot
of "static" simbols which gcc is somehow deleting. However, I cannot =
test
anything since I haven't the buggy gcc. Since you have, take a broken=
 binary
and a working one (the only difference must be the -fno-unit-at-a-tim=
e
switch
in the right places) and run:

nm broken > list1
nm working > list2
diff -u list1 list2 > theChanges

and send me "theChanges" (I don't need nor want list1 or list2 for no=
w, they
are too big maybe for a 56k modem to download). With that at hand, it=
 will
take probably ten minutes for the fix.

Bye
--=20
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729




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