topic Re: OpenMP library in SDK 1.7 in P-Series

OpenMP library in SDK 1.7

sharathchandra — Fri, 17 Apr 2015 07:55:25 GMT

Hi,

I am using SDK 1.7 for P4080DS board. On the board, I could see GCC installed but without OpenMP library.

How do I enable openmp library in SDK and build it?

I tried the following, but it did not work,

1. CORE_IMAGE_EXTRA_INSTALL += "libgomp libgomp-dev libgomp-staticdev" at the end of local.conf under directory build_p4080ds_release/conf.

2. I removed all the occurences of --disable-libgomp from the poky/meta/recipes-devtools/gcc/gcc-4.8.inc header.

Before doing the above changes, I tried to clean under the build directory using bitbake -c clean -f, but it appears it does not clean everything.

So I deleted the build directory build_p4080ds_release and created again, add the above changes and built everything. But this also did not work.

I am new to Yocto environment, could anyone please suggest what to do?

Thanks,

Sharath Chandra

Re: OpenMP library in SDK 1.7

lunminliang — Fri, 17 Apr 2015 09:41:55 GMT

Hello Sharath Chandra,

Is the compile-time flag -fopenmp specified?

Regards

Lunmin

Re: OpenMP library in SDK 1.7

sharathchandra — Fri, 17 Apr 2015 09:48:16 GMT

Hi LunMin,

I tried to give -fopenmp option, but it does not take and gives the following error:

gcc: error: libgomp.spec: No such file or directory

Then I found that, no libgomp libraries were present on the board.

The library might not have got included while adding GCC to file system when building SDK.

How do I edit the recipes to include libgomp?

Thanks,

Sharath Chandra