Re: [rvm-research] Question on JikesRVM build with perfevent

Hi,

On 03.09.2014 04:24, Junjie Qian wrote:
> I am building JikesRVM with perfevent configuration. It used to work, but today when I rebuilt it, it shows error as following.
> 
> build-bootloader:
>      [exec] /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../libpfm.so when searching for -lpfm
>      [exec] /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../libpfm.a when searching for -lpfm
>      [exec] /usr/bin/ld: skipping incompatible //usr/lib/libpfm.so when searching for -lpfm
>      [exec] /usr/bin/ld: skipping incompatible //usr/lib/libpfm.a when searching for -lpfm
>      [exec] /usr/bin/ld: cannot find -lpfm
>      [exec] collect2: error: ld returned 1 exit status
> 
> BUILD FAILED
> .../build.xml:1834: The following error occurred while executing this line:
> .../build.xml:1839: exec returned: 1
> 
> It works if no perfevent configuration.
> I had the problem building perfevent before, but it was solved by changing the linking order which Erik updated later.
> 
> The platform is, Ubuntu Linux 3.13.0, JikesRVM 10762-revision, libpfm-4.4.0, gcc-4.8.2, g++-4.8.2.
> 
> Could you give me some help on this?
On hg tip, the line for the linking order is:
<arg line="${c++.args} ${rvm.common.args} ${gcspy.lib.dir} ${rvm.src} ${perfevent.lib} ${c++.librt} -lpthread ${c++.rdynamic} -g"/>

That linking order works for me on Ubuntu 14.04 with an installed 32-bit libpfm4. Are you using the same linking order? If not, does the linking order from the hg tip work for you?


Kind regards,

Erik Brangs


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