Slowly compilation on RPi3 32bit mode

NeddySeagoon · Posted: Tue Mar 21, 2017 10:51 am Post subject:

madurani,

The rainbow is a test screen drawn by the raspberry pi. I think its the file bootcode.bin that draws it, since it can be disabled in config.txt.
That it does not go away suggests that something is going wrong before the kernel gets control.

Looking at Sakakis and my booting fdisk -l we both have a partition ID of b.

madurani · n00b Joined: 08 Mar 2017 Posts: 50

Hello All,

Could you please advise me with distcc/crossdev issue. I configured distcc compilation between raspberry/gentoo64(sakaki.img) and laptop(gentoo x86_64). Compilation work fine and quickly, but loot of packages finish with same compilation error:

NeddySeagoon · Posted: Sun Mar 26, 2017 5:57 pm Post subject:

madurani,

Post the output from gcc-config - l from both tho Pi and the helper(s)
All must have the same versions of gcc selected for the aarch64-unknown-linux-gnu compiler.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

madurani · n00b Joined: 08 Mar 2017 Posts: 50

Raspberry:

NeddySeagoon · Posted: Sun Mar 26, 2017 6:06 pm Post subject:

madurani,

That looks good.

Do you have a complete build log with the final link failed: Bad value ?
If so, put it onto a pastebin.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

madurani · n00b Joined: 08 Mar 2017 Posts: 50

argo ~ # wgetpaste /var/tmp/build.log
Your paste can be seen here: https://paste.pound-python.org/show/Mh85Kd7kIS1MP6tp9zVG/

NeddySeagoon · Posted: Sun Mar 26, 2017 6:40 pm Post subject:

madurani,

The actual error is a few lines up

madurani · n00b Joined: 08 Mar 2017 Posts: 50

Could You somebody advise my, what is needed recompile and with which flags?

madurani · n00b Joined: 08 Mar 2017 Posts: 50

Hello All,

I added to make.con in variable CFLAGS flag -fPIC. Now compilation via distcc run fine, but I don't know, which affect have this flag. Can somebody shortly enplane me, what mean mentioned flag(-fPIC) and which affect have it?

NeddySeagoon · Posted: Mon Mar 27, 2017 8:31 am Post subject:

madurani,

-fPIC tells gcc to generate Position Independent Code.
I thought it was the default in Gentoo for many years.

Its not possible to link a program that has some parts compiled with -fPIC and some without. However, that's not normally
a distcc problem.

Do you get the same problem building you test case (=dev-libs/libusb-1.0.21) on the Pi?

What about with distcc but without pump mode, so all the preprocessing is done on the Pi?
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

madurani · n00b Joined: 08 Mar 2017 Posts: 50

Hello,

Same problem was on lot of packages, but now I don't remember names this packages, but for example, there were mesa and iperf(but there were more packages). Default is setting pupm mode. I tried compile via distcc without pump mode(used suppres-distcc-pump.conf), but with same result as in pump mode(ld issue). When I compile this package without distcc (used makeopts-j4.conf) so compilation run fine but locally. It was same for all package which had problem with ld link.

With flag PIC run compilation fine. Is there some negative affect with this flag?

Marek

NeddySeagoon · Posted: Mon Mar 27, 2017 9:37 am Post subject:

madurani,

Pump mode allows distcc to distribute the configure phase. I could understand that configure run on different systems might get different CFLAGS.
However, without pump mode, helpers only compile. CFLAGS is passed to the helpers with the compile jobs.

I'm running out of ideas. Lets compare USE flag setting on the Pi and helpers.

What does

madurani · n00b Joined: 08 Mar 2017 Posts: 50

Here is configuration of gcc:

NeddySeagoon · Posted: Mon Mar 27, 2017 10:11 am Post subject:

madurani,

I asked the right question but it was not complete. Your post shows the native compiles on both systems.
We need the build for the cross compiler on the laptop and the native compiler on the Pi

No the laptop, we need to know about

madurani · n00b Joined: 08 Mar 2017 Posts: 50

NeddySeagoon · Posted: Mon Mar 27, 2017 2:13 pm Post subject:

madurani,

You can try that but I don't know what vtv does.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

Hu · Moderator Joined: 06 Mar 2007 Posts: 21633

vtv controls the gcc feature "vtable verify", which is intended to protect C++ virtual function calls from exploitation. I doubt it will matter here.

madurani · n00b Joined: 08 Mar 2017 Posts: 50

Hello All,

I want switch audio output(on RPi3) to bluetooth device, but finish with error. Configuration of bluetooth device look OK. Device is paired and connected, but alsa mixer don't know switch to bluealsa devce.

NeddySeagoon · Posted: Tue Apr 04, 2017 9:04 pm Post subject:

madurani,

I have a /home/<me>/bluealsa.asoundrc

madurani · n00b Joined: 08 Mar 2017 Posts: 50

Hello All,

I don't know, what happened, but command hciconfig today missing.
I recompiled package as net-wireless/bluez-5.44 and media-sound/bluez-alsa-9999.
Daemons bluetooth is OK, but bluealsa is crashed. Yesterday hciconfig command was reachable and work fine with controller, today not exist.

madurani · n00b Joined: 08 Mar 2017 Posts: 50

Hello All,

Problem with missing hciconfig command I fixed, with downgrading of net-wireless/bluez-5.44 to older version, but problem with alsamixer persist.
Still is problem with alsa-lib. I tried it downgrade too, but result is same(below). I don't understand why ALSA lib goes to /var/tmp path. It should be only temporary things created during emerging of package. Have a somebody idea, what can mean an error message below?

axl · Veteran Joined: 11 Oct 2002 Posts: 1144 Location: Romania

if you install a new version of gcc, you should always also recompile distcc to take notice of that new version of gcc and make the links to the new version. both on server and client.

Hu · Moderator Joined: 06 Mar 2007 Posts: 21633

This is the first I have ever seen of that bit of advice. I do not see anything in the distcc ebuild that would seem to support that advice. Could you describe why you believe this to be necessary?

axl · Veteran Joined: 11 Oct 2002 Posts: 1144 Location: Romania

ls -al /usr/lib/distcc/bin/

I don't think the ebuild does those. I think it may be the distcc makefile.

Anyway. Consider this scenario. You have gcc 5.4.0 installed and distcc on the server (x86_64). You install gcc 6.3.0 as well. Distcc will not be able to use gcc-6 unless you recompile it to take notice of the new gcc-6.

Same thing goes if you install a new crossdev gcc. I guess you could make those things by hand, but why would you? Distcc is short to compile.

EDIT: I guess you don't have to do it on the client (PI).

NeddySeagoon · Posted: Tue May 09, 2017 11:53 am Post subject:

axl,

distcc picks up which version of gcc to use from the environment at run time.
Thats true if its invoked manually with a wrapper or with FEATURES=distcc.

On the helpers, the version(s) of gcc selected with gcc-config are used, so its important ts set the gcc versison ts be the same everywhere.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.