Re: [ptxdist] liburcu doesen't compile under arm

["Hänel-Baas, Alexander" <alexander.haenel-baas@sieb-meyer.de>]

Hi Juergen

Ups, i forget to tell you what liburcu version i used. Sorry.

You are right.
I found a discussion about vers. 0.8.0 how pass the CC variable to the example Makefiles

http://git.lttng.org/?p=userspace-rcu.git;a=commit;h=d251e6454df8976cd28c01536e0e41f02f5de072

Now I have apply this patch and it works.

Thank you very much for your hints and support.

Best regards
Alexander


-----Ursprüngliche Nachricht-----
Von: Juergen Borleis [mailto:jbe@pengutronix.de] 
Gesendet: Mittwoch, 4. März 2015 12:40
An: ptxdist@pengutronix.de
Cc: Hänel-Baas, Alexander
Betreff: Re: [ptxdist] liburcu doesen't compile under arm

Hi Alexander,

On Wednesday 04 March 2015 11:09:37 Hänel-Baas, Alexander wrote:
> Thank you for your reply.
>
> There is NO libucru installed on my host.

Wrong direction. You didn't told us you try to use a more recent version of userspace-rcu (=0.8.0) than it is part of PTXdist (=0.6.7)...

> Here the output from clean an compile step at full length.
> [...]
> cc -g -O2 -Wall  -g -O2 -L../../../.libs/  
> -Wl,-rpath="/opt/g3DevelBase/g3Toolchain/g3Bsp/sd3XenoArm.Bsp.V2/platform-sm-arm/build-target/userspace-rcu-0.8.0/doc/examples/../../.libs/"
>  \ -o cds_hlist_add_head_rcu cds_hlist_add_head_rcu.o -lurcu
> /usr/bin/ld: skipping incompatible ../../../.libs//liburcu.so when 
> searching for -lurcu
> /usr/bin/ld: cannot find -lurcu
> collect2: error: ld returned 1 exit status
> make[7]: Leaving directory `/opt/g3DevelBase/g3Toolchain/g3Bsp/sd3XenoArm.Bsp.V2/platform-sm-arm/build-target/userspace-rcu-0.8.0/doc/examples/hlist'
> make[7]: ***
> [...]
> I think, when make do all in doc's then it used the wrong LD.

Not the wrong LD, it uses 'cc' (=host compiler) instead of the correct "arm-v7a-linux-gnueabi-gcc" cross-compiler.

Maybe the new 0.8.0 version comes with a configure switch do disable building the examples and docs. Or their buildsystem must be fixed to use the cross compiler everywhere.

Regards,
Juergen

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Pengutronix e.K.                              | Juergen Borleis             |
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