[yocto] Problem with exporting variable in bbappend file

[Gujulan Elango, Hari Prasath (H.)]

Hi Raj

Thanks for your reply. I tried bitbake-layers show-appends. I could see my bbappend file. But when I tried to grep the environment variable I am trying to set using bitbake -e, I am not able to see any output. Is there any way to confirm that the environment variable is set to the value I am trying to set ?
 
Regards,
Hari Prasath

From: Khem Raj [mailto:raj.khem at gmail.com] 
Sent: Tuesday, September 06, 2016 11:49 PM
To: Gujulan Elango, Hari Prasath (H.)
Cc: yocto at yoctoproject.org
Subject: Re: [yocto] Problem with exporting variable in bbappend file


On Aug 30, 2016, at 5:30 AM, Gujulan Elango, Hari Prasath (H.) <hgujulan at visteon.com> wrote:

Hello all,

We are working on a platform based on Renesas processor. The BSP provided by them has arm-trusted-firmware. Now in order to enable all the 8 cores, they have suggested to add a environment variable in the arm-trusted-firmware_git.bb file in their BSP layer as below.

export PSCI_DISABLE_BIGLITTLE_IN_CA57BOOT="0"

We would prefer to make this change in our custom layer by creating a .bbappend file. We added the change in bbappend file, recompiled it and tested, but couldn't get the expected results. When I do the same change in the .bb file itself in their BSP layer, I am able to see the expected result.

Is it okay to just add the export as mentioned above in the .bbappend file ? Am I missing something else ?

ensure that your bbappend is actually applying to the final parsed recipe. You can use bitbake-layers show-appends to ensure that or simply bitbake -e and grep for this change



Thanks & Regards,
Hari Prasath
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