[yocto] extracting SDK for supporting both 32 and 64 bit applications

[Zhenhua Luo]

Hi Michael,

If you mean the standalone toolchain on host, the 32b and 64b build should be done by different toolchain, you need to install both 32b and 64b toolchain.

If you mean the rootfs on target board, you can select a 64b target and add 32b package in corresponding rootfs bb file, e.g. IMAGE_INSTALL_append = " lib32-zlib lib32-gcc ...'.


Best Regards,

Zhenhua

From: yocto-bounces at yoctoproject.org [mailto:yocto-bounces at yoctoproject.org] On Behalf Of Michael Fainstein
Sent: Thursday, January 28, 2016 2:46 PM
To: yocto at yoctoproject.org
Subject: [yocto] extracting SDK for supporting both 32 and 64 bit applications

Dear community,

I am using Freescale's SDK 1.8 based on poky 1.6.2.

How can extract SDK that supports building of both 32 and 64 bit applications?

I defined configuration for my board to be 32 bit with 64 bit kernel and extracted SDK for application development.
Everything works fine: I can build 32 bit applications and execute them on my board and peek at PCI memory that is far above 32 bit memory limit.
I can build and load kernel loadable modules using bitbake.
However, building kernel modules using extracted SDK fails: while there are 64 bit tools in bitbake environment, there are no 64 bit tools and 64 bit headers in extracted SDK environment.
I tried also to define my board as 64 bit with multilibs and added to my image 32-bit libraries. However, in this configuration the extracted SDK didn't contain 32 bit tools and headers. How do I add both 32 and 64 bit tools and headers to native SDK?


Thank you,
Michael
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